StarsOut
Should you go outside tonight?
Drop everything — go outside
Near-perfect conditions. Nights like this are rare.
Snowdonia
9.4
out of 10
Peak 2h
9.522:00–00:00
Prime 21–01
9.521:00–01:00
Best this week
8.7Mon, Jul 20
Moon
Waxing Crescent
27% lit
Quarter moon — moderate light
🔭 Moon up: 11:55–23:17
Full moon: Jul 29
Sky now
Clear · 0%
Measured at EGCK · 36km away · 10min ago
Sun ↓ 21:30·Dark from 22:30·12% clouds
Alert me on good nightsSky quality tonight
Best: 22:00–00:00This week’s nights
Europe/LondonHow 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.