Weather in Thunder Bay: October
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Average day temperature: | 49.8°F |
| Average night temperature: | 43.2°F | |
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Sea water temperature: | 53.2°F |
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Number of sunny days: | 9 days |
| Day length: | 9.9 - 11.6 hours | |
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Number of rainy days: | 1 day |
| Precipitation totals: | 0.6 in. | |
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forecast
| Thunder Bay |
temperature
| Thunder Bay |
Air temperature in October, °F
The highest day temperature during October of 2026 was 67°F. At the same time the lowest night temperature was 35°F. Daily and nightly averages during October were 51.8°F and 46.1°F.
Sea water temperature in Thunder Bay in October, °F
The average sea water temperature in October of 2026 was 51.5°F. The highest and lowest sea temperatures during the month were 57.6°F and 47.5°F.
Number of sunny, partly cloudy and cloudy days in October is almost equal.
Precipitation total in October, in.
Precipitation total value in Thunder Bay in October is 0.6 in. Other months of the year show relatively similar values.
The average wind speed value in October is 8.5 mph It makes October one of the most windy months of the year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in October is: 5.6.
Best time for vacation in Thunder Bay
Thunder Bay on a weather map
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