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Thunder Bay weather in June 2025
Expect 20°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Thunder Bay in June. Check more long-term weather averages for Thunder Bay in June before you book your next holiday to Ontario in 2025/2026.
- 2020°C max day temperature
- 9 hours of sunshine per day
- 1313 days with some rainfall
- 77°C min night temperature
- 1616 hours of daylight per day
- 0No heat & humidity
- 8282 mm of monthly rainfall
- 77 (High) UV index
- 44°C sea temperature
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Thunder Bay by month
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Recommended for Ontario
The June 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 hot is it in Thunder Bay in June?
Daytime temperatures usually reach 20°C in Thunder Bay in June, falling to 7°C at night.
How sunny is it in Thunder Bay in June?
There are normally 9 hours of bright sunshine each day in Thunder Bay in June - that's 54% of daylight hours.
Is the sea cold around Thunder Bay in June?
The average sea temperature around Thunder Bay in June is 4°C.
Does it rain in Thunder Bay in June?
There are usually 13 days with some rain in Thunder Bay in June and the average monthly rainfall is 82mm.
Thunder Bay June sunrise & sunset times
Browse the sunrise and sunset times for Thunder Bay in June 2025. Select a month to view Thunder Bay sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Sunday, 1st June 2025 | 05:00 | 20:51 |
Sunday, 15th June 2025 | 04:55 | 21:01 |
Monday, 30th June 2025 | 04:59 | 21:02 |
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