Ontario weather in December 2024

Expect 0°C daytime maximum temperatures in the shade with on average 2 hours of sunshine per day in Ontario in December. Check more long-term weather averages for Ontario in December before you book your next holiday to Ontario in 2024/2025.

  • 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

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