StarsOut
Should you go outside tonight?
Great night tonight
Clear skies and dark conditions. Go outside.
Nijmegen
8.9
out of 10
Cautious estimate
Models split — score biased toward the cloudier forecast.
Peak 2h
10.022:00–00:00
Prime 21–01
9.221:00–01:00
Best this week
9.2Mon, Jul 20
Moon
Waxing Crescent
11% lit
Moon doesn’t interfere — perfect darkness
🔭 Moon up: 09:31–23:16
Full moon: Jul 29
Sky now
Mostly cloudy · 75%
Measured at EHVK · 23km away · 11min ago
Sun ↓ 21:47·Dark from 22:47·17% 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.