Auroras (northern lights) in San Francisco — Sep 28, 2025
Probability of northern lights in San Francisco
Information as of 2025-09-28 23:58 (end of day) local time in San Francisco
0 %
San Francisco
Aurora intensity index
Auroral intensity index and the theoretically possible latitude of observations for nighttime in the Western Hemisphere as of 2025-09-28 23:58 (end of day) local time
Northern lights (auroras) over North America
Changes from 2025-09-28 to 2025-09-29 UTC
Northern lights (auroras) in the northern hemisphere
Changes from 2025-09-28 to 2025-09-29 UTC
Probability of northern lights (auroras) in cities of United States
Information as of 2025-09-28 23:58 (end of day) local time in San Francisco
0 %
Washington
0 %
New York
0 %
Chicago
0 %
Philadelphia
3 %
Seattle
0 %
Detroit
1 %
Portland
0 %
Boston
1 %
Madison
8 %
Bismarck
2 %
Olympia
4 %
Helena
4 %
Saint Paul
49 %
Fairbanks
22 %
Anchorage
25 %
Juneau
10 %
Hooper Bay
23 %
Nome
38 %
Kotzebue
45 %
Utqiagvik
11 %
Bethel
27 %
Cordova
Polar auroras over the past 2 days
Changes in the auroral intensity index from 2025-09-27 to 2025-09-28 local time
