StarsOutAlert me on good nights
Should you go outside tonight?
Not worth it tonight
Clouds will block the view. Stay inside.
London
0.1
out of 10
Peak 2h
0.423:00–01:00
Prime 21–01
0.121:00–01:00
Best this week
8.7Sat, Jun 6
Moon
Waning Gibbous
98% lit
Very bright — stick to planets and the moon itself
🔭 Moon up: 22:04–04:46
📍 S · 9°
Sky now
Clear · 0%
Measured at EGLC · 13km away · 13min ago
Sun ↓ 21:08·Dark from 22:08·100% clouds
🔭
Moon visible today
04:48 – 07:26 · 98% lit · great for telescope viewing
Next great night
Friday — 7.1
🌙 Good night ahead
Sky quality tonight
Best: 23:00–01:00This 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.