Plein Air Painting Problems and How to Fix Them Outdoors
Author: The Art Shed Team Date Posted:3 September 2026
Painting outdoors always looks easier in your head. Beautiful light. Fresh air. A peaceful afternoon painting from life.
Then the wind picks up, your paint starts drying faster than you can mix it, your easel wobbles on uneven ground and something inevitably lands in the wet paint.
That’s all part of painting en plein air.
Outdoor painting comes with a few challenges you simply don’t have to think about in the studio, but most of them are easy enough to manage once you know what’s causing them. Sometimes the best solution is a piece of proper equipment. Sometimes it’s moving six metres into the shade. And sometimes it’s a bulldog clip doing a heroic amount of work.
This guide covers the most common problems you’re likely to run into when painting outdoors, plus what you can do about them while you’re still out there.
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QUICK ANSWER: Most en plein air painting problems come down to three things: weather affecting how your paint behaves, an unstable or exposed setup, and getting wet artwork home safely. A stay-wet palette, a stable and properly weighted easel, a sheltered position out of direct sun, and a way to keep wet work separated will prevent many of the most common headaches. |
WHAT’S IN THIS GUIDE:
Fast-drying paint, wind and easel stability, lightweight outdoor setups, debris in wet paint, judging colour outdoors, watercolour resist, changing light, transporting wet work and plein air FAQs.
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Paint & Medium Behaviour
Outdoor conditions can change the way your materials behave surprisingly quickly. Heat, direct sunlight, wind and low humidity all encourage moisture to evaporate faster, which means the working time you’re used to in the studio may disappear outdoors.
The solution depends on the medium you’re using.
Why does my paint dry so fast when I’m painting outdoors?
Heat, direct sun, wind and low humidity all speed up evaporation, so you’ll generally have less working time on both your palette and painting surface than you would indoors.
If your paint is becoming difficult to blend, your first move should be to reduce the environmental factors before changing your whole painting technique.
Acrylic and gouache
A stay-wet palette is one of the most useful changes you can make when working outdoors. The Neef Staywet Palette helps maintain moisture around your paint while you work, extending the time your acrylics remain workable.
For gouache and other rewettable paints, an airtight palette such as the Mont Marte Air Tight Watercolour Palette allows you to seal your mixes between uses rather than leaving them exposed to the air.
A small fine-mist spray bottle is another useful addition to your kit. A light mist can replace some of the moisture being lost to the air, although you don’t want to soak your acrylic paint. Too much water can alter its consistency and affect how the paint behaves.
For acrylic specifically, a slow-drying medium or retarder can also extend the paint’s open time. Use it according to the manufacturer’s recommended ratio rather than adding it by eye, as changing the formulation too much can affect the way the acrylic dries.
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ART SHED TIP: Already outside and your paint is drying before you can use it? Move the palette into the shade first, then block some of the wind with a spare piece of card, paper or even the lid of your kit. It won’t replace a proper stay-wet palette, but reducing direct sun and airflow can buy you valuable working time. |
Watercolour
Watercolour depends heavily on controlling moisture, so hot or windy conditions can change the way a wash behaves very quickly. Water may evaporate from the paper before the pigment has finished moving, making wet-on-wet techniques harder and leaving hard edges where you were hoping for a soft transition.
Before changing your technique, change your environment.
Move into shade and, where possible, choose a position protected from wind. That alone can make a noticeable difference to how long a wash stays workable.
A fine-mist spray bottle can also help. Lightly misting the paper before a larger wash can give you a little more working time without flooding the surface with water.
And if you’re working from pans, don’t worry about the paint drying between uses. That is normal for pan watercolour and is exactly what it is designed to do. Simply reactivate it with clean water. In particularly dry conditions, adding a drop of water to the colours you plan to use a minute or two before you start can soften them and make it easier to lift pigment.
Travel sets such as the Sennelier La Petite Aquarelle Travel Set or the Winsor & Newton Cotman Sketchers' Pocket Box are particularly convenient outdoors because they keep your colours contained and give you a built-in mixing surface.
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Wind, Easels & Outdoor Setup
Wind is one of those things that seems harmless until you put a canvas on an easel.
Suddenly your painting is basically a small sail.
How do I stop my easel blowing over in the wind?
The basic rule is low, wide and weighted.
An easel becomes much less stable once you add a canvas or painting board, because the larger surface catches the wind. A breeze that feels completely manageable when you’re standing still can move your entire setup once the painting is acting like a sail.
Start by extending the legs wide enough to create a broad base, and avoid raising the easel any higher than you need to work comfortably.
If you’re on uneven ground, adjust each telescopic leg independently rather than forcing all three to the same length. You want each foot firmly planted, not balanced awkwardly on one rock.
If your easel has a safe central hanging point, your art bag or a filled water bottle can make useful ballast. Keep the weight low and make sure it cannot swing around, as moving weight can make the setup less stable rather than more.
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ART SHED TIP: If the wind suddenly picks up, lower the easel before doing anything else. Less surface area + a lower centre of gravity = a much happier easel. If it’s still fighting you, move somewhere more sheltered rather than trying to win against the elements. |
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What’s the best portable easel for plein air painting?
The best outdoor easel isn’t necessarily the biggest, strongest or most expensive one. It’s the one that suits how far you’re carrying it, what you’re painting and what else you need to take with you.
Weight, pack-down size and whether the easel can carry or store your supplies are three of the biggest practical considerations.
Before the easel itself even comes into the picture, a few setup habits do most of the work: keep the legs wide, keep the mast no higher than necessary and adjust each leg individually on uneven ground. Add low, secure ballast when conditions call for it.
Winsor & Newton Sketch Field Easel — $149
A strong all-round choice when you’ll be walking some distance to your painting spot.
At 3 kg, it’s light enough to carry while still offering plenty of capacity. It folds to roughly 95 x 16 x 10 cm, with a strap holding the parts together, and requires no assembly, so you can get set up quickly once you arrive.
Rubber non-slip feet are especially useful on smooth rock or paving where tripod legs can slide.
It handles canvases up to 125 cm with a 6 kg load capacity, so you’re not limited to tiny studies just because the easel itself is relatively portable.
Mont Marte Tripod Easel — Lightweight Pine Wood - $34.95
A simple, lightweight option that’s great for artists who want an easy setup for painting outdoors without spending a fortune.
The pine construction keeps it relatively light and easy to carry, while the tripod design gives you a straightforward, adjustable workspace wherever you decide to paint. It’s a great choice for getting started with plein air painting and equally useful for artists who simply prefer a fuss-free easel that does the job.
Like any lightweight easel, it’s worth positioning it on stable ground and weighting it down if you’re painting somewhere particularly exposed or windy.
Mont Marte Black French Box Floor Easel — $139
A great value option if you want your easel, palette and storage to live together.
The built-in drawer is the real plein air advantage. Your palette, brushes and tubes can stay inside the box rather than sitting open on the ground collecting dust, grass and whatever else the wind decides to deliver.
It’s heavier than a lightweight field easel, so it makes particular sense when you can park relatively close to your painting location.
Mont Marte Floor Easel — French Box Style Extra Large Beech Wood — $179
The same useful all-in-one concept in beech rather than pine, with more capacity.
It’s worth considering if you work larger than A2 outdoors or want a sturdier frame that can also double as a studio easel at home.
Mabef M22 Big Sketch Box Easel — $579.95
A serious investment for artists who paint outdoors regularly and want an all-in-one setup.
The four-compartment tin-lined sliding drawer keeps brushes, tubes and smaller tools organised and enclosed, while the timber palette gives you a proper mixing surface.
The canvas holder adjusts from vertical through to fully horizontal, which is particularly useful for watercolour artists who may want to work on a flatter surface.
It holds canvases to 87 cm at up to 8 kg and is backed by a lifetime warranty. Folded, it measures 56 x 44 x 16 cm.
Mont Marte Pine Desk Easel — Small Reclinable Tabletop Style - $29.95
Not a floor easel and that’s exactly the point.
If you’re sketching at a picnic table, painting at a café or working from a car tailgate, a small tabletop easel can give you a much better working angle without adding a large piece of equipment to your kit.
The reclining action is particularly useful for watercolour. You can tilt the surface for more controlled washes and lower it when you need to stop water from running where you don’t want it.
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ART SHED TIP: Don’t automatically choose the smallest easel because you’re travelling. Think about where you’ll actually use it. An ultra-light field easel makes sense for a hike; a French box easel makes much more sense when you can park close by and want your palette and supplies enclosed. |
What should I sit on when painting outdoors?
A stool seems like a small decision until you’ve spent an hour standing on uneven ground.
If you’re walking to your painting spot, weight and pack-down size matter. The Winsor & Newton Folding Stool folds flat and weighs around 1.2 kg, making it the practical choice for locations where you’ll be carrying your equipment in.
The Mont Marte Signature Easel Stool offers adjustable seat height, which can make longer sessions more comfortable, although at roughly 4 kg it’s better suited to locations where you don’t have far to carry everything.
Sitting also has a second advantage in windy conditions: it lets you work with your easel lower to the ground, which is one of the simplest things you can do to improve stability.
Dust, Leaves & Insects
You can’t completely stop the outdoors from behaving like the outdoors, but you can make it much harder for debris to become part of your painting.
How do I stop dust, leaves and bugs getting in my wet paint?
Most of it comes down to where you set up and what stays covered when you’re not using it.
There are four simple habits that prevent a lot of the problem.
Put a windbreak behind you. A wall, vehicle, hedge or bank can take the brunt of the wind before it reaches your palette. Your own body can work as a partial shield too, so keep your palette on the sheltered side of your setup rather than the exposed side.
Look up before you unpack. A beautiful shady tree can also be an extremely efficient leaf, seed, blossom or insect delivery system. If something is actively dropping debris, you’re probably going to be dealing with it for the entire session.
Keep your supplies enclosed when you aren’t using them. This is one of the reasons French box and sketch box easels are so useful outdoors. Their enclosed storage means your brushes, tubes and palette aren’t sitting open on the ground collecting grit between uses. The Mabef M22 Big Sketch Box Easel and the Mont Marte French box models both give you somewhere to shut things away.
Use lids. Pan sets in a hinged tin, airtight palettes and secure water containers all help keep your materials protected while you step back from the painting. Get into the habit of closing your palette when you stop to look at your subject rather than waiting until it’s time to pack up.
And if something still lands in the wet paint?
Don’t immediately attack it with your brush.
For thicker acrylic or oil paint, carefully lifting the debris with tweezers or the corner of a palette knife can be much cleaner than dragging it across the surface.
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ART SHED TIP: Keep tweezers in your plein air kit permanently. They weigh almost nothing and are vastly better than a brush at removing a piece of grass, a hair or one particularly determined insect from wet paint. |
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How do I stop my paper blowing away?
Secure it before you start, even if the morning is completely still. It is much easier to tape down a clean sheet than rescue a half-finished watercolour from the grass.
A sketch board with clips gives your paper a firm backing and keeps the edges controlled. If you’re using a plain board, a couple of bulldog clips can do the job with almost no extra weight in your kit.
For watercolour paper, masking tape along the edges is another useful option. It holds the sheet down while you work and leaves a clean border around the finished painting.
If you are using clips, position them away from your brush hand and in places where they won’t create a bump under the paper.
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ART SHED TIP: Pack the things that stop problems, not just the things that make the painting. A couple of bulldog clips and a roll of masking tape are tiny compared with the frustration of chasing your paper around a park. |
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Sun, Glare & Heat
Outdoor light is one of the best things about painting outside.
It is also one of the easiest things to misjudge.
Direct sunlight can make colours appear more vivid, glare can make values difficult to judge, and changing conditions can make the same scene look completely different over the course of a session.
Why does my painting look different when I bring it inside?
Because you painted it under a much brighter light source than the one you’re looking at now.
Direct sunlight is significantly brighter than typical indoor lighting, and glare on wet paint or white canvas can make it genuinely difficult to judge values accurately while you work.
That’s why a painting that looked beautifully balanced outdoors can suddenly appear darker, duller or slightly different once it comes inside.
Where possible, work in consistent open shade rather than direct sun.
Dappled shade can look inviting, but moving patches of sunlight across your canvas can make judging the painting even more difficult because the light hitting your work keeps changing.
It also helps to establish your values early. Squint at your subject to simplify it into larger light and dark shapes, then block those in before you get caught up in detail.
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ART SHED TIP: Step back regularly and compare just three things: your darkest dark, your lightest light and one important mid-tone. You’re checking the relationship between them, not trying to perfectly match every colour you can see. |
Why is my watercolour beading up or resisting the paper in one spot?
If watercolour suddenly beads up or refuses to absorb into one little patch of paper, something may be interfering with the surface.
Sunscreen, moisturiser, insect repellent and the natural oils from your fingertips can all transfer onto watercolour paper and create a slight resist. Because the contamination is often localised, you may only notice it when one particular part of a wash suddenly starts behaving strangely.
Wax, some drawing materials and masking residue can cause a similar problem.
If it’s already happened, don’t panic. Start by gently blotting the area with a clean, slightly damp cloth or paper towel to see if you can lift any surface contamination. Let the area settle, then try working a small amount of clean water over the patch with a soft brush before introducing colour again.
If the paper is still resisting the paint, try using a slightly stronger pigment mixture with less water and gently work the colour into the area rather than repeatedly flooding it. You may not be able to make the patch behave exactly like untouched paper, but you can often make it much less noticeable.
Avoid aggressively scrubbing the surface. Watercolour paper is sized to control how water and pigment absorb, and too much rubbing can damage that sizing and create an even more obvious patch.
And if it simply won't cooperate? Work with it. Depending on where the resist has appeared, you may be able to incorporate the lighter mark into a highlight, texture or detail, or carefully disguise it with a later layer once the area is completely dry.
Prevention is still the easiest fix. Handle your paper by the edges wherever possible and keep a clean cloth in your kit for wiping excess sunscreen, moisturiser or sweat from your fingertips.
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Changing Light & Painting Outdoors with Confidence
One of the biggest differences between painting outdoors and painting in the studio is that your subject refuses to sit still.
The sun moves. Shadows shift. Clouds pass overhead. Colours change.
You can’t stop that from happening, so the trick is learning when to make your decisions and when to stop chasing the scene.
What do I do when the light changes before I’ve finished?
Commit early and stop chasing it.
Shadows and colour temperature shift constantly outdoors, and if you keep changing your painting every time the light moves, you can easily end up with a scene that looks like two different times of day stitched together.
Establish your main shapes, values and shadow directions early and treat those decisions as the conditions you set out to capture.
Taking a quick reference photo in the first few minutes can also help if you need to remind yourself where a particular shadow or highlight originally sat.
A reference photo isn’t there to replace your observation. It’s simply a backup for when the scene inevitably changes.
Working smaller can help too, particularly while you’re learning to paint outdoors. A5 journals, paint pads and small surfaces such as the Mont Marte Signature Canvas Panels give you a manageable area to complete before conditions change too dramatically.
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ART SHED TIP: If the light changes dramatically halfway through your painting, don’t immediately start over. Step back and ask whether the painting still reads as the scene you set out to capture. If the major light and dark shapes are working, keep going. |
Lightweight & Portable Travel Art Supplies
A full studio setup might contain everything you could possibly need.
That doesn’t mean you want to carry it halfway across a beach.
When you’re travelling with art supplies, the goal isn’t simply to take as little as possible. It’s to choose equipment that is compact, lightweight, useful and easy to organise.
What are the best lightweight art supplies for travelling?
Think about the way you’re actually going to travel and paint. A day hike, a road trip and a week-long holiday will all call for very different kits.Some useful ways to reduce bulk include choosing:
Compact painting surfaces. A5 sketchbooks, watercolour journals and paint pads are often much easier to travel with than stretched canvas. They pack flat, weigh very little and don’t need a rigid canvas frame.
Travel-sized paint sets. A compact watercolour or gouache set can give you a surprisingly broad working palette without carrying every colour you own.
A small selection of versatile brushes. Take the brushes you’ll actually use rather than your entire collection. A brush roll or compact pencil case can keep them together without adding much bulk.
A portable easel. The Mont Marte Tripod Easel, Lightweight Pine Wood and Winsor & Newton Sketch Field Easel provide different approaches depending on how much weight you’re comfortable carrying and what size you plan to paint.
A folding stool. The Winsor & Newton Folding Stool is particularly useful when walking to your painting spot, while the Mont Marte Signature Easel Stool makes more sense when comfort and adjustable height are higher priorities than minimum weight.
Compact palettes. Tear-off palettes, small mixing palettes and palettes with lids are much easier to pack than a large studio palette.
Small storage solutions. Brush rolls, pencil cases and compact toolboxes can keep your kit organised without requiring a huge art bag.
The TOYO Trunk Shape Toolbox T-190 is also a great example of how artist storage doesn’t have to look like traditional art storage. Its compact format makes it useful for keeping brushes, pencils, small paint tubes and other tools together while travelling.
For more ideas, check out our guide to travel art supplies for exploring Australia.
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ART SHED TIP: Build your kit around the type of trip, not your entire art collection. A hiking kit needs to prioritise weight. A road trip gives you room for a few more comforts. There’s no prize for carrying the heaviest art bag. |
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Getting Your Wet Work Home Safely
Painting the artwork is only half the job when you’re working outdoors. Then comes the awkward bit: getting it home.
Wet paint doesn’t care that you’ve just finished your masterpiece. It will happily transfer itself onto your car seat, bag, portfolio or the painting sitting beside it.
How do I get a wet painting home without smudging it?
The safest option is to avoid letting anything touch the painted surface until it has dried properly.
Don’t lay a wet painting face-down in a bag and hope for the best. Don’t stack another artwork directly on top of it. And definitely don’t put a bag of brushes on top because you’ve run out of room.
For small panels, carry the artwork vertically or at an angle where possible, with enough space around the painted surface for air to circulate.
In the car, keep it somewhere secure where it won’t slide around and where other equipment cannot fall onto it.
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ART SHED TIP: Don’t assume your painting is dry just because the surface feels dry. Acrylic and gouache can form a skin fairly quickly while thicker areas underneath remain soft. When in doubt, treat it as wet. |
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What if I’ve painted more than one piece?
The golden rule is simple:
Wet painted surfaces should never touch each other.
Separate each piece with something rigid so the surfaces cannot press together during transport. A dedicated wet-paint carrier is ideal, but board offcuts or another rigid separator can also work in a pinch..
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ART SHED TIP: If you know you’re going to paint several pieces, pack your transport solution before you leave home. A couple of rigid boards take up far less space than several ruined paintings. |
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Packing Your Kit Without Overpacking
The easiest way to overpack is to prepare for every possible painting scenario. The easiest way to underpack is to forget the one thing that makes actually painting outdoors comfortable.
How do I know what to pack for an outdoor painting trip?
Start with the medium, location and length of the trip, then build your kit around those things.
A basic outdoor setup might include:
Painting surface: sketchbook, watercolour journal, paint pad, canvas panel or canvas
Medium: a compact paint set or a limited selection of tubes
Brushes and drawing tools: the sizes and tools you’re realistically going to use
Palette: something compact with enough space to mix
Water and cleaning: a secure water container and cloth
Easel or support: depending on whether you prefer to stand, sit or work from your lap
Storage: brush roll, pencil case, compact toolbox or art bag
Comfort: stool, sunscreen, hat, water and something to protect your finished artwork
Our Art Kits & Bundles are also a useful shortcut if you’d rather start with a ready-made selection rather than choosing every item individually.
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ART SHED TIP: Pack for the painting you’re actually going to do, not every painting you might do. A smaller, well-chosen kit is much more likely to come out of your bag and get used. |
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Do I need an easel to paint outdoors?No. Plenty of watercolour artists and sketchers work without one, using a sketchbook, board or other firm surface on their lap, against a wall or on a table. An easel becomes more useful when you want to work larger, prefer to stand, or need to step back regularly to assess your painting. |
Can I paint outdoors in light rain?You can, but your medium matters. Watercolour and gouache are particularly vulnerable to rain because extra water hitting the surface can disturb washes, lift pigment and create unwanted blooms. Oil paint is less immediately affected by a few drops of water, but rain can still interfere with a wet painting and make the overall experience miserable very quickly. If conditions are turning properly wet, an overhang or sheltered area is a much better option. |
How long should a plein air session be?There’s no universal time limit, but around two hours is a practical guide for many outdoor sessions. By then, the light may have shifted substantially from when you began, particularly if you’re painting a scene with strong directional shadows. If you’re new to plein air painting, two shorter sessions can sometimes be more useful than one marathon session. You get to practise making decisions quickly without trying to wrestle one painting through every possible change in light. |
What’s the best time of day to paint outdoors?Early morning and late afternoon are popular because the light tends to be warmer and shadows more pronounced, giving you strong shapes and interesting colour relationships. The trade-off is that the light can change quickly. Overcast conditions are often much flatter, but that stability can actually make them excellent for learning. You’re dealing with fewer dramatic shadow changes and can focus more on colour and shape. |
Is it worth carrying a separate water container?Yes. Outdoors, having enough clean water to work comfortably can make a bigger difference than you’d expect, particularly for watercolour. A container with separate areas for rinsing can help you avoid repeatedly dipping a clean brush into muddy water. Whatever container you choose, make sure it seals securely enough that a small bump doesn’t turn the inside of your art bag into a portable swamp. |
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Final Thought
Every plein air painter runs into these problems. Sometimes several of them in the same afternoon.
The difference between a frustrating session and a good one is rarely talent. More often, it’s a handful of small details sorted before you start: keeping your paint workable, finding a stable position, protecting your paper from the wind and figuring out how you’re getting the finished painting home.
The rest is you, the light and whatever happens to be in front of you.
And honestly? A little bit of chaos is part of the fun.
If you’re putting your setup together, take a look through our Tripod & Floor Easels range for outdoor-friendly options, or browse our Art Kits & Bundles if you’d rather start with a ready-made selection.
For a deeper look at what to actually pack, our guide to building your plein air kit and our travel art supplies guide will take you further.
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