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Thunder Bay weather in December 2019
- -6-6°C max day temperature
- 1111 days with some rainfall
- -16-16°C min night temperature
- 88 hours of daylight per day
- 0No heat & humidity
- 4545 mm of monthly rainfall
- 11 (Low) UV index
- 44°C sea temperature
The December 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 cold is it in Thunder Bay in December?
Daytime temperatures usually reach -6°C in Thunder Bay in December, falling to -16°C at night.
How sunny is it in Thunder Bay in December?
There are normally 3 hours of bright sunshine each day in Thunder Bay in December - that's 35% of daylight hours.
Is the sea cold around Thunder Bay in December?
The average sea temperature around Thunder Bay in December is 4°C.
Does it rain in Thunder Bay in December?
There are usually 11 days with some rain in Thunder Bay in December and the average monthly rainfall is 45mm.
Thunder Bay sunrise & sunset times for December 2019
Browse the sunrise & sunset times for Thunder Bay in December 2019. Select a month to view Thunder Bay sunrise & sunset times for the next twelve months.
|Date||Sunrise times||Sunset times|
|Sunday, 1st December 2019||08:27||17:04|
|Monday, 16th December 2019||08:43||17:02|
|Tuesday, 31st December 2019||08:49||17:11|
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Metric (°C / mm) | Imperial (°F / inches)
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Where's warm in Ontario in December?
Below are average maximum temperatures at popular destinations in Ontario in December. Select a destination to see more weather parameters.
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