How to Paint Clouds With Acrylics: Steps for Realistic Skies

Clouds look effortless in good landscape paintings, which is exactly why they’re frustrating when yours come out like cotton balls glued to a blue wall. The fix is rarely more white paint. It’s understanding that clouds are three-dimensional forms with a light side, a shadow side and soft, uneven edges, sitting in a sky that itself changes color from top to bottom.

This guide on how to paint clouds with acrylics covers the sky gradient, three main cloud types, dry brush and wet blending techniques, sunset clouds and the mistakes that make clouds look flat. It’s written for beginners but includes tips for painters who want more realistic skies.

How Clouds Work: What to Look For

A few observations make every cloud you paint more believable.

• Clouds have form. A cumulus cloud is like a lumpy ball of cotton lit from one side. The side facing the sun is bright; the opposite side and the base are in shadow.
• Cloud shadows aren’t gray. They pick up color from the sky, so they’re often blue-gray, violet-gray or warm gray depending on the light.
• Edges vary. Sunlit tops have crisper edges. Bottoms and the edges of thin, wispy areas are soft and blend into the sky.
• Perspective applies. Clouds overhead look large and tall. Clouds near the horizon look smaller, flatter and closer together, and they’re often warmer and paler because you’re seeing them through more atmosphere.
• The sky is a gradient. Clear sky is usually deepest blue straight overhead and lighter, sometimes slightly warmer or greener, near the horizon.

Supplies for Painting Clouds

• Canvas or panel, any size. 11×14 or 12×16 inches is good for practice.
• Brushes: a 1- or 2-inch flat for the sky, a size 8 to 12 filbert or round for clouds, a worn or scruffy brush for dry brushing, and a soft mop or blending brush.
• Paints: titanium white, ultramarine blue, phthalo blue or cerulean, burnt umber or burnt sienna, a touch of yellow ochre, and alizarin crimson hue or quinacridone magenta for sunset skies.
• Slow-dry medium and a misting bottle.
• Paper towels for blotting and lifting.

Cloud color mixes

Clouds use a lot of white, and white quality affects everything. A strong white covers the sky color in one pass and keeps cloud tops bright, while a weak white looks gray and needs heavy layering. For a comparison of whites and blues worth having for skies, see our guide to the best acrylic paint brands for landscape and sky painting.

How to Paint Clouds With Acrylic Paint: Step by Step

Step 1: Paint the sky gradient

Mix your deep sky and light sky colors, plus a middle blend. Starting at the top of the canvas, paint the deep sky with horizontal strokes using a wide flat brush. Move down, switching to the middle mix and then the light horizon color, blending each band into the next while the paint is wet.

Use a little slow-dry medium or mist the surface to keep the paint workable. A smooth gradient sets up everything else, so take your time here. Let it dry before moving on, unless you’re painting soft clouds wet-into-wet.

Step 2: Plan the cloud shapes

Decide where your clouds go and where the light is coming from. A useful structure is a few large clouds in the upper part of the sky, medium clouds in the middle and small, flat clouds near the horizon. Vary sizes and spacing, and avoid placing clouds in a straight row.

Lightly sketch the overall shapes with chalk or a very thin wash, or skip the sketch and paint directly.

Step 3: Block in the shadow shapes

This step feels backwards, but it’s the key to realistic clouds. With a filbert and your cloud shadow mix, paint the base and the side of each cloud facing away from the light. Make the bottom of each cumulus cloud fairly flat; cumulus clouds form at a consistent height, so their bases line up roughly horizontally.

Step 4: Add the mid-tones

Paint the mid-tone mix above and beside the shadow areas, slightly overlapping them. Use circular, scrubbing strokes (scumbling) so the edges stay soft and irregular.

Step 5: Paint the lit tops

With the lit-top mix and a slightly drier brush, paint the tops and the sides facing the light. Use small, rounded, puffy dabs and twisting strokes to build lumpy, billowing shapes. Let some of the mid-tone show between them.

Keep the sunlit top edges relatively crisp, since that’s where the cloud is densest and most directly lit.

Step 6: Soften the edges

With a clean, dry, soft brush, lightly blend the bottom edges and the outer edges of the cloud into the sky. Use a gentle, circular motion. A soft mop brush works well here. Don’t blend everything; some crisp edges at the top make the cloud look solid.

Step 7: Highlights

Add a few touches of pure white on the brightest edges, where the cloud faces the sun most directly. Less is more; a few bright accents look brighter than a whole cloud top in pure white.

Step 8: Distant clouds

Near the horizon, paint smaller, flatter clouds with less contrast. Use a paler shadow color and a slightly warmer, softer top. They should sit back in the painting, not compete with the foreground clouds.

Painting Different Cloud Types

How to paint wispy cirrus clouds

Load a dry, scruffy flat or fan brush with a very small amount of white, wipe most of it off on a paper towel, then sweep it lightly across the dry sky in curved strokes. The brush will skip and leave thin streaks. Build up gradually; it’s easy to add more and hard to remove too much.

How to paint storm clouds

Storm clouds need strong value contrast. Paint the base in a dark blue-gray (ultramarine, burnt umber and a little white), add mid-tone grays up the body of the cloud, and keep the top, where sunlight may still hit, much brighter. A dark sky beneath with streaks of rain dragged down with a dry brush finishes the effect.

Painting Sunset Clouds

At sunset, light comes from low on the horizon, so it lights the undersides of clouds instead of the tops.

1. Paint a sunset gradient: blue-violet at the top, magenta and orange in the middle, pale yellow near the horizon.
2. Paint the clouds mostly in a dark, warm violet-gray.
3. Paint the bottom edges, which face the setting sun, in bright orange, pink or gold.
4. Add the brightest highlights along the lower edges of clouds closest to the sun.

Reversing the light direction is the most important part. Sunset clouds lit from above look wrong, even if the colors are right.

How to Paint Acrylic Clouds for Beginners: Quick Exercises

• Cloud study sheet: paint a blue gradient on a sheet of paper and paint six small clouds, each a different type.
• Three-value cloud: paint one cumulus cloud using only shadow, mid-tone and light, no blending tools. It teaches form.
• Ten-minute skies: paint several quick skies on small panels, focusing on gradients and cloud placement, not detail.
• Photo reference: photograph the sky on a few different days and paint from your own photos.

Clouds and the Landscape Below

Clouds don’t exist in isolation, and the sky affects everything under it. A few connections make the whole painting more convincing.

• Cloud shadows on the ground: on a day with scattered cumulus, large patches of the landscape fall into shadow. Painting a few darker bands across fields or hills ties the sky to the land.
• Light consistency: if the lit sides of your clouds face left, trees, buildings and rocks should be lit from the left too.
• Color echo: mix a little of your sky blue into the shadows of the landscape, and a little of the warm cloud highlight into lit grass or stone. Shared colors unify the painting.
• Reflections: lakes and puddles reflect clouds, slightly darker than the sky above them.

Wet-Into-Wet vs Dry Brush Clouds

Wet-into-wet: paint clouds into a wet sky so the edges melt softly. It gives dreamy, atmospheric results but needs quick work and slow-dry medium, since acrylic dries fast. Good for soft, hazy skies.

Dry brush and scumbling: paint clouds over a dry sky with a dry brush and little paint. It gives more control and crisp texture, and you can build layers. Good for defined cumulus and wispy cirrus.

Many painters combine both: soft shadows wet-into-wet, then crisper lit tops dry-brushed on top. Fluid acrylics can make wet blending easier because they stay smoother; our Daler-Rowney fluid acrylic paint review covers how one fluid line handles blending.

Common Mistakes When Painting Clouds

• Pure white clouds with no shadows. They look flat and pasted on. Always paint a shadow side.
• Gray shadows. Mix shadow colors with blue, violet or warm earth tones, not black.
• Hard outlines all around. Keep edges soft at the bottom and sides, crisper only on sunlit tops.
• Same size everywhere. Clouds should get smaller and flatter toward the horizon.
• Flat sky. A single blue for the whole sky looks artificial. Use a gradient.
• Overblending. Too much blending makes clouds look like smoke or fog. Leave texture and puffy edges.

FAQs

How do you paint clouds with acrylic for beginners?

Paint a blue gradient sky, then paint each cloud’s shadow side in blue-gray, add mid-tones, and finish with puffy white tops using circular strokes. Soften the bottom edges into the sky with a dry, soft brush.

What colors do you mix for cloud shadows?

Mix white with ultramarine blue and a touch of burnt sienna or burnt umber for a cool gray, or white, ultramarine and a hint of crimson for a violet-gray. Avoid black, which looks dirty.

What brush is best for painting clouds?

A filbert or round brush, size 8 to 12, for shaping clouds, a worn or scruffy brush for dry brushing and a soft mop brush for softening edges.

How do you make clouds look fluffy?

Use circular scumbling strokes, keep sunlit tops slightly crisper than the bottoms, vary the edges and paint a clear shadow side. The contrast between shadow and light creates the fluffy, three-dimensional look.

How do you paint clouds in acrylic paint without them looking flat?

Paint the shadow shapes first, build up mid-tones and lights on top, soften the base, and keep pure white for a few highlights. Make distant clouds smaller and lower in contrast.

How long does it take to paint a cloudy sky?

A simple cloudy sky takes 30 to 60 minutes. A detailed, dramatic sky with many clouds can take two to three hours.

Final Thoughts

Good clouds come from three ideas: paint the shadows first, vary the edges, and use perspective so clouds shrink toward the horizon. Practice on small panels, and your skies will quickly start to look like air and light instead of paint.

Because clouds depend so heavily on white and blue, the paints you use matter. To find a strong white and clean blues for your skies, read our comparison of acrylic paint brands that perform well for skies and landscapes.