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Thunder Bay weather in May 2020
- 1515°C max day temperature
- 1111 days with some rainfall
- 22°C min night temperature
- 1515 hours of daylight per day
- 0No heat & humidity
- 7070 mm of monthly rainfall
- 66 (High) UV index
- 33°C sea temperature
The May weather guide for Thunder Bay, Ontario 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.
How warm is it in Thunder Bay in May?
Daytime temperatures usually reach 15°C in Thunder Bay in May, falling to 2°C at night.
How sunny is it in Thunder Bay in May?
There are normally 8 hours of bright sunshine each day in Thunder Bay in May - that's 55% of daylight hours.
Is the sea cold around Thunder Bay in May?
The average sea temperature around Thunder Bay in May is 3°C.
Does it rain in Thunder Bay in May?
There are usually 11 days with some rain in Thunder Bay in May and the average monthly rainfall is 70mm.
Thunder Bay sunrise & sunset times for May 2020
Browse the sunrise & sunset times for Thunder Bay in May 2020. Select a month to view Thunder Bay sunrise & sunset times for the next twelve months.
|Date||Sunrise times||Sunset times|
|Friday, 1st May 2020||06:37||21:12|
|Saturday, 16th May 2020||06:15||21:33|
|Sunday, 31st May 2020||06:00||21:50|
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Metric (°C / mm) | Imperial (°F / inches)
Discover more about Canada
Where's hot in Ontario in May?
Below are average maximum temperatures at popular destinations in Ontario in May. Select a destination to see more weather parameters.
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