StarsOut
Should you go outside tonight?
Good night ahead
Mostly clear. Worth setting up.
Lisbon
6.8
out of 10
Clouds
54%
Moon
Waning Crescent
2% lit
Moon below horizon — perfect darkness
Best window
00:00 – 02:00
Sun ↓ 20:13·Dark from 21:13
Alert me on good nightsNext great night
Thursday — 7.1
🌙 Good night ahead
Sky quality tonight
Best: 00:00–02:00This week’s nights
Europe/LisbonHow 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.