Aurora in Greater Sudbury on December 23, 2025

December 23, 2025

Greater Sudbury change region

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Probability of aurora in Greater Sudbury

Probability of aurora as of end of day, December 23, 2025, Greater Sudbury time

3 % Greater Sudbury

Aurora intensity index

Auroral intensity index and estimated minimum latitude of auroral observations at zenith as of the end of December 23, 2025, Greater Sudbury time

Aurora over North America

Changes in the auroral oval on December 23, 2025 in Canada 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 December 23, 2025 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 Canada

Estimated probabilities of aurora observations at zenith for cities in Canada as of end of day December 23, 2025.

1 % Ottawa

1 % Toronto

2 % Montreal

1 % Vancouver

6 % Calgary

14 % Edmonton

0 % Hamilton (Canada)

3 % Quebec

12 % Winnipeg

0 % Kitchener

12 % Saskatoon

8 % Red deer

36 % Salluit

51 % Arviat

47 % Yellowknife

16 % Whitehorse

45 % Thompson

6 % Prince george

40 % Rankin Inlet

26 % Iqaluit

30 % Inuvik

8 % Cambridge Bay

Aurora intensity over 2 days

Changes in the auroral intensity index from December 22 to 23, 2025 in the northern hemisphere, Greater Sudbury time

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