Aurora in Seattle on September 4, 2026

September 4, 2026

Seattle change region

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Probability of aurora in Seattle

Probability of aurora as of end of day, September 4, 2026, Seattle time

1 % Seattle

Aurora intensity index

Auroral intensity index (1.8) and estimated minimum latitude of auroral observations at zenith as of the end of September 4, 2026, Seattle time

Aurora over North America

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

0 % Washington

0 % New York

0 % Chicago

0 % Philadelphia

1 % Seattle

0 % Detroit

0 % Portland

0 % Boston

0 % Madison

2 % Bismarck

0 % Olympia

1 % Helena

1 % Saint Paul

16 % Fairbanks

6 % Anchorage

9 % Juneau

3 % Hooper Bay

7 % Nome

12 % Kotzebue

16 % Utqiagvik

3 % Bethel

8 % Cordova

Aurora intensity over 2 days

Changes in the auroral intensity index from September 3 to 4, 2026 in the northern hemisphere, Seattle time. Maximum — 2.0/10

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