Aurora in San Jose on May 4, 2026

May 4, 2026

San Jose change region

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Probability of aurora in San Jose

Probability of aurora as of end of day, May 4, 2026, San Jose time

0 % San Jose

Aurora intensity index

Auroral intensity index and estimated minimum latitude of auroral observations at zenith as of the end of May 4, 2026, San Jose time

Aurora over North America

Changes in the auroral oval on May 4, 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 May 4, 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 May 4, 2026.

0 % Washington

0 % New York

0 % Chicago

0 % Philadelphia

2 % Seattle

0 % Detroit

0 % Portland

0 % Boston

1 % Madison

4 % Bismarck

1 % Olympia

2 % Helena

2 % Saint Paul

23 % Fairbanks

10 % Anchorage

14 % Juneau

5 % Hooper Bay

11 % Nome

17 % Kotzebue

24 % Utqiagvik

5 % Bethel

13 % Cordova

Aurora intensity over 2 days

Changes in the auroral intensity index from May 3 to 4, 2026 in the northern hemisphere, San Jose time

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