Aurora in San Francisco on August 10, 2026

August 10, 2026

San Francisco change region

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Probability of aurora in San Francisco

Probability of aurora as of end of day, August 10, 2026, San Francisco time

0 % San Francisco

Aurora intensity index

Auroral intensity index (0.8) and estimated minimum latitude of auroral observations at zenith as of the end of August 10, 2026, San Francisco time

Aurora over North America

Changes in the auroral oval on August 10, 2026 in United States from the beginning to the end of the day, Coordinated Universal Time (UTC)

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Aurora in the northern hemisphere

Changes in the auroral oval on August 10, 2026 in the northern hemisphere from the beginning to the end of the day, Coordinated Universal Time (UTC)

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Probability of aurora in cities of United States

Estimated probabilities of aurora observations at zenith for cities in United States as of end of day August 10, 2026.

0 % Washington

0 % New York

0 % Chicago

0 % Philadelphia

0 % Seattle

0 % Detroit

0 % Portland

0 % Boston

0 % Madison

0 % Bismarck

0 % Olympia

0 % Helena

0 % Saint Paul

5 % Fairbanks

1 % Anchorage

2 % Juneau

0 % Hooper Bay

1 % Nome

3 % Kotzebue

6 % Utqiagvik

0 % Bethel

2 % Cordova

Aurora intensity over 2 days

Changes in the auroral intensity index from August 9 to 10, 2026 in the northern hemisphere, San Francisco time. Maximum — 1.8/10

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