StarsOut
Is tonight good for stargazing in Alqueva?
Good night ahead
Mostly clear. Worth setting up.
Alqueva
Tonight's score
7.8
out of 10
Cautious estimate
Models split — score biased toward the cloudier forecast.
Sun ↓ 18:53Dark 20:21–06:1037% cloud, 20:21–06:10
Best 2 hours
9.600:00–02:00
Evening, 21–01
8.121:00–01:00
Best this week
8.6Sat, Oct 17
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: 11:36–20:50
Visible in daylight from 11:36 until sunset
Full moon: Oct 26
Right now at LPBJ, 14 min ago
Clear · 0%
Airport weather report 40 km away. The score above is the forecast for tonight after dark.
Sky quality tonight
Best 2 hours: 00:00–02:00This 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.