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Ontario Canada
Temperatures in December
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Ontario temperatures in December

Ontario is a region in Canada. December in has maximum daytime temperatures ranging from very low in Red Lake with -9°C to low temperatures in Saint Catharines with 4°C. Nighttime temperatures generally drop to -1°C in Saint Catharines and -17°C in Red Lake. December falls during the winter season.

What is the temperature of the different cities in Ontario in December?

Discover the typical December temperatures for the most popular locations of Ontario on the map below. Detailed insights are just a click away.

Weather conditions Weather
Temperatures
Precipitation
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Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

  • What is the warmest city in December in Ontario?
    • Based on our systematic data collection, Saint Catharines has been identified as the city with the highest average temperatures. The daytime temperature usually hovers around 4°C, while at night is goes down to an approximate temperature of -1°C."

  • What is the coldest city in December in Ontario?
    • When looking through our records, we find that Red Lake stands out as the coolest city in Ontario for the month of December. Daytime highs average -9°C and it cools down to about -17°C at night.

  • How much sun does Ontario get in December?
    • The city Toronto usually sees around 78 hours of sunlight, indicating fewer sunny days.

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