StarsOut
Should you go outside tonight?
Great night tonight
Clear skies and dark conditions. Go outside.
Zwolle
8.2
out of 10
Low confidence
Models disagree on tonight — actual conditions may be cloudier.
Peak 2h
8.822:00–00:00
Prime 21–01
9.121:00–01:00
Best this week
9.1Mon, Jul 20
Moon
Waxing Crescent
11% lit
Moon doesn’t interfere — perfect darkness
🔭 Moon up: 09:29–23:16
Full moon: Jul 29
Sky now
Clear · 0%
Measured at EHLE · 39km away · 18min ago
Sun ↓ 21:49·Dark from 22:49·89% clouds
Alert me on good nightsSky quality tonight
Best: 22:00–00:00This week’s nights
Europe/AmsterdamHow the score works
60% weight
Cloud cover
Layer-weighted across the best 2-hour window of the night. Low clouds block everything, thin high cirrus still lets bright stars through.
40% weight
Moon darkness
A new moon boosts the score. A full moon near midnight washes out all but the brightest stars. We ease the penalty after midnight when the moon is setting.