StarsOut
Should you go outside tonight?
Great night tonight
Clear skies and dark conditions. Go outside.
Kerry
7.9
out of 10
Low confidence
Models disagree on tonight — actual conditions may be cloudier.
Peak 2h
8.501:00–03:00
Prime 21–01
7.721:00–01:00
Best this week
7.6Wed, Jul 22
Moon
Waxing Crescent
37% lit
Quarter moon — moderate light
🔭 Moon up: 13:37–23:54
📍 SE · 17°
Full moon: Jul 29
Sun ↓ 21:48·Dark from 22:48·43% clouds
Alert me on good nightsSky quality tonight
Best: 01:00–03:00This week’s nights
Europe/DublinHow 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.