Dark-Sky Weather for Photographers
The field guide to reading cloud, transparency and dew point like a night shooter.
Read the guideA dark-sky forecast that speaks photographer
"Partly cloudy" tells you nothing at 1 a.m. Dark Skies forecasts the signals that decide a night photo — cloud, transparency, humidity, moonlight and true darkness — and scores every night 0–100.
Ordinary weather apps are written for commutes and picnics. They'll cheerfully report a 20% chance of rain while a thin veil of high cirrus quietly ruins every long exposure you take. A dark-sky forecast starts from a different question: will the sky actually be worth pointing a camera at tonight?
The signals that decide a night
Dark Skies reads the forecast the way an experienced night photographer does, hour by hour through the night:
- Cloud cover — through the dark hours, not the daily average.
- Atmospheric transparency — haze and moisture that dim faint stars even under a "clear" sky.
- Humidity and dew-point margin — the difference between crisp glass and a fogged front element at 2 a.m.
- Moonlight — phase, illumination and the exact rise and set times.
- Your true dark window — when astronomical darkness actually starts and ends at your location.
All of it lands in one honest number: the Night Score, a 0–100 read on whether tonight is worth the drive. Tap it for the full breakdown whenever you want to see the reasoning.
Tonight, this week, and the next fortnight
The Forecast view scores the week ahead night by night, and Best Nights ranks a 14-night horizon with the strongest night called out at the top — so you can plan the trip, not just the evening. Widgets keep tonight's score on your Home and Lock screens, and Best Night alerts give you a heads-up when an exceptional night is coming to your spot.
Honest by design
Weather data comes from Apple WeatherKit on iOS and Open-Meteo on Android, while the astronomy — your dark window, moon and Milky Way timing — is calculated on your device. And because it's a forecast, Dark Skies treats it like one: a strong score means the odds are stacked in your favour, not a promise. The goal is fewer wasted drives and no missed gems.
Want the deeper theory? Read our guides to dark-sky weather for photographers and finding the best nights, or see everything the Dark Skies planner does end to end.
Dark-sky forecast FAQ
What is a dark-sky forecast?
A forecast built around what night photography actually needs: hour-by-hour cloud cover, atmospheric transparency, humidity and dew-point margin, moonlight, and the true astronomical dark window for your location — rather than a daytime summary like a 20% chance of rain.
How far ahead can I plan?
The Forecast view scores the week ahead night by night, and Best Nights ranks a 14-night horizon so you can pick the strongest upcoming night in advance. Like any weather forecast, confidence is highest for the next few days and softens further out.
Can it guarantee a clear night?
No forecast can. The Night Score is an honest, evidence-based read on how promising a night looks — its job is to stack the odds in your favour and save you the drives that were never going to work out.
Does the forecast work offline?
Fetching a fresh forecast needs a connection, but recently loaded forecasts and saved plans stay available in the field. The astronomy — dark window, moon and Milky Way timing — is calculated on your device and works without signal.