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Thunder Bay weather in March 2025
Expect 0°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Thunder Bay in March. Check more long-term weather averages for Thunder Bay in March before you book your next holiday to Ontario in 2025/2026.
- 00°C max day temperature
- 5 hours of sunshine per day
- 1010 days with some rainfall
- -12-12°C min night temperature
- 1212 hours of daylight per day
- 0No heat & humidity
- 4242 mm of monthly rainfall
- 33 (Moderate) UV index
- 22°C sea temperature
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Thunder Bay by month
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Recommended for Ontario
The March weather guide for Ontario (Thunder Bay) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about Canada
How cold is it in Thunder Bay in March?
Daytime temperatures usually reach -0°C in Thunder Bay in March, falling to -12°C at night.
How sunny is it in Thunder Bay in March?
There are normally 5 hours of bright sunshine each day in Thunder Bay in March - that's 44% of daylight hours.
Is the sea cold around Thunder Bay in March?
The average sea temperature around Thunder Bay in March is 2°C.
Does it rain in Thunder Bay in March?
There are usually 10 days with some rain in Thunder Bay in March and the average monthly rainfall is 42mm. Rain may fall as snow in this month.
Thunder Bay March sunrise & sunset times
Browse the sunrise and sunset times for Thunder Bay in March 2025. Select a month to view Thunder Bay sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Saturday, 1st March 2025 | 07:38 | 18:42 |
Sunday, 16th March 2025 | 07:07 | 19:04 |
Monday, 31st March 2025 | 06:36 | 19:27 |
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