CloudCast · Cloud Conditions
Is Overcast Good for Photography?
The answer depends entirely on what you're shooting. LightCast CloudCast scores today's sky conditions by layer and by subject, so you know what the forecast actually means for your shoot.
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It depends on your subject
What Overcast Actually Does to Light
Full overcast turns the entire sky into a diffused light source. For some subjects, that's the best possible light. For others, it removes the drama entirely. The mistake is treating overcast as generically bad — a grey sky that ruins a sunset shoot is often ideal for the waterfall two miles away.
Portraits
Ideal. Soft, even light. No harsh shadows. Flattering for all skin tones.
Waterfalls & Forest
Ideal. Eliminates dappled light and blown highlights. Even exposure throughout.
Golden Hour
Bad. Full overcast blocks direct sunlight entirely. No colour, no sky drama.
Astrophotography
Bad. Any cloud cover blocks stars. Even thin cirrus reduces contrast significantly.
Landscape
Mixed. Dramatic with broken cloud. Flat under full overcast without sky interest.
Macro
Good. Even light reduces specular highlights on small subjects. Easy exposure.
What CloudCast checks
Cloud Cover by Layer, Not Just Percentage
A single cloud cover percentage doesn't tell you much. 40% low stratus blocks all direct light. 40% mid-level altocumulus with a clear horizon is the ideal golden hour setup. CloudCast breaks cloud cover into low, mid, and high layers and factors in atmospheric haze and light penetration — then scores conditions for your specific shooting target.
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App Exclusive
CloudCast is only available in the iOS app. It runs alongside every other LightCast tool in one place. GoldCast and StarCast send push notifications when golden hour or night sky conditions meet your threshold — so you're covered for the full range of forecasts, not just clouds.
Common Questions
Is overcast good for photography?
For portraits, waterfalls, and forest photography:
yes, often ideal. For golden hour, sunsets, and astrophotography: generally no. CloudCast scores the same sky differently based on your target — available in the
LightCast iOS app.
What cloud cover is best for golden hour?
30–70% mid-level cloud (altocumulus or altostratus) with a clear band near the horizon. The cloud catches direct light from below the horizon and reflects colour across the sky. Full overcast blocks all direct light; zero cloud gives warm tones but no sky drama.
Is cloudy weather good for portrait photography?
Yes. A thin or full overcast acts as a natural diffuser, creating soft, even light with no harsh shadows. It's often the preferred condition for outdoor portraits and is generally easier to work with than direct midday sun.
Does cloud cover affect astrophotography?
Any cloud cover degrades astrophotography. Even thin cirrus at high altitude reduces star contrast and can completely obscure the Milky Way. StarCast in LightCast scores cloud cover specifically for night sky shooting, alongside light pollution and moon phase.
What is LightCast CloudCast?
CloudCast breaks cloud cover into low, mid, and high layers, factors in atmospheric haze and light penetration, and scores conditions for your shooting target. Exclusive to the
LightCast iOS app. $2.99/month after a 7-day free trial.