StarsOut
Is tonight good for stargazing in Lisbon?
Drop everything — go outside
Near-perfect conditions. Nights like this are rare.
Lisbon
Tonight's score
9.4
out of 10
Low confidence
Models disagree on tonight — actual conditions may be cloudier.
Sun ↓ 18:59Dark 20:28–06:1711% cloud, 20:28–06:17
Best 2 hours
9.920:28–22:00
Evening, 21–01
9.521:00–01:00
Best this week
9.7Sun, Oct 18
Parts of the night. The score above covers the whole dark window.
Moon
Waxing Crescent
18% lit
Moon doesn’t interfere — perfect darkness
Moon up: 11:45–20:55
Visible in daylight from 11:45 until sunset
Full moon: Oct 26
Sky quality tonight
Best 2 hours: 20:28–22:00This week’s nights
Europe/LisbonHow the score works
60% weight
Cloud cover
Averaged over the whole dark window, layer by layer. Low cloud blocks everything; thin high cirrus still lets bright stars through.
40% weight
Moon darkness
A new moon boosts the score. A bright Moon only costs points while it is actually above the horizon in the dark hours, and more the higher it stands.