Ontario weather in December 2023

  • 0°C maximum daytime temperature in December in Ontario (Toronto)0
    0°C max day temperature
  • 2 hours of sunshine per day
  • 13 days with some rainfall in December in Ontario (Toronto)13
    13 days with some rainfall
  • -6°C minimum night-time temperature in December in Ontario (Toronto)-6
    -6°C min night temperature
  • 9 hours of daylight per day in December in Ontario (Toronto)9
    9 hours of daylight per day
  • No heat & humidity in December in Ontario (Toronto)0
    No heat & humidity
  • 72 mm monthly rainfall in December in Ontario (Toronto)72
    72 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in December in Ontario (Toronto)1
    1 (Low) UV index
  • 5°C sea temperature in December in Ontario (Toronto)5
    5°C sea temperature

Below are average maximum temperatures at popular destinations in Ontario in December. Select a destination to see more weather parameters.

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Recommended for Ontario

The December weather guide for Ontario (Toronto) 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.

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Metric (°C / mm)  |  Imperial (°F / inches)

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More about Canada

How cold is it in Ontario in December?

Daytime temperatures usually reach 0°C in Toronto, Ontario in December, falling to -6°C at night.

How sunny is it in Ontario in December?

There are normally 2 hours of bright sunshine each day in Toronto, Ontario in December - that's 26% of daylight hours.

Is the sea cold around Ontario in December?

The average sea temperature around Toronto, Ontario in December is 5°C.

Does it rain in Ontario in December?

There are usually 13 days with some rain in Toronto, Ontario in December and the average monthly rainfall is 72mm. Rain may fall as snow in this month.

Ontario December sunrise & sunset times

Browse the sunrise and sunset times for Ontario in December 2023. Select a month to view Ontario sunrise and sunset times for the next 12 months. The Ontario sunrise and sunset times shown below are for Toronto.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st December 2023 07:31 16:42
Saturday, 16th December 2023 07:45 16:42
Sunday, 31st December 2023 07:51 16:50

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