Auroras (northern lights) in San Francisco — Aug 19, 2025
Probability of northern lights in San Francisco
Information as of 2025-08-19 23:50 (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 2025-08-19 23:50 (end of day) local time
Northern lights (auroras) over North America
Changes from 2025-08-19 to 2025-08-20 UTC
Northern lights (auroras) in the northern hemisphere
Changes from 2025-08-19 to 2025-08-20 UTC
Probability of northern lights (auroras) in cities of United States
Information as of 2025-08-19 23:50 (end of day) local time in San Francisco
0 %
Washington
0 %
New York
0 %
Chicago
0 %
Philadelphia
0 %
Seattle
0 %
Detroit
0 %
Portland
0 %
Boston
0 %
Madison
1 %
Bismarck
0 %
Olympia
0 %
Helena
0 %
Saint Paul
11 %
Fairbanks
4 %
Anchorage
5 %
Juneau
1 %
Hooper Bay
4 %
Nome
8 %
Kotzebue
10 %
Utqiagvik
1 %
Bethel
6 %
Cordova
Polar auroras over the past 2 days
Changes in the auroral intensity index from 2025-08-18 to 2025-08-19 local time
