Auroras (northern lights) in San Jose — Sep 30, 2025
Probability of northern lights in San Jose
Information as of 2025-09-30 23:47 (end of day) local time in San Jose
0 %
San Jose
Aurora intensity index
Auroral intensity index and the theoretically possible latitude of observations for nighttime in the Western Hemisphere as of 2025-09-30 23:47 (end of day) local time
Northern lights (auroras) over North America
Changes from 2025-09-30 to 2025-10-01 UTC
Northern lights (auroras) in the northern hemisphere
Changes from 2025-09-30 to 2025-10-01 UTC
Probability of northern lights (auroras) in cities of United States
Information as of 2025-09-30 23:47 (end of day) local time in San Jose
0 %
Washington
0 %
New York
0 %
Chicago
0 %
Philadelphia
3 %
Seattle
0 %
Detroit
2 %
Portland
0 %
Boston
1 %
Madison
9 %
Bismarck
2 %
Olympia
5 %
Helena
4 %
Saint Paul
57 %
Fairbanks
26 %
Anchorage
29 %
Juneau
12 %
Hooper Bay
29 %
Nome
45 %
Kotzebue
53 %
Utqiagvik
13 %
Bethel
32 %
Cordova
Polar auroras over the past 2 days
Changes in the auroral intensity index from 2025-09-29 to 2025-09-30 local time
