StarsOut
Is tonight good for stargazing in Portland?
Not worth it tonight
Clouds will block the view. Stay inside.
Portland
Tonight's score
0.0
out of 10
Sun ↓ 16:56Dark 18:36–05:12100% cloud, 18:36–05:12
Best 2 hours
0.019:00–21:00
Evening, 21–01
0.021:00–01:00
Best this week
10.0Tue, Nov 3
Parts of the night. The score above covers the whole dark window.
Moon
Waning Crescent
34% lit
Moon low or brief — minimal impact
Moon up: 00:43–14:25
📍 W · 29°
Full moon: Nov 24
Next good night
Tuesday — 10.0
Exceptional night
Sky quality tonight
Best 2 hours: 19:00–21:00This week’s nights
America/Los AngelesHow 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.