Ontario - Canada weather in December 2025
December
Ontario - Canada weather in December 2025
December
Day
1 °C
Night
-6 °C
Sea
3 °C
Precipitation
71 mm
in month
Rainy days
13 days
in month
Daylight
9 hours
average
Sunshine
2 hours
average
Humidity
80 %
Day
1 °C
Night
-6 °C
Sea
3 °C
Precipitation
71 mm
in month
Rainy days
13 days
in month
Daylight
9 hours
average
Sunshine
2 hours
average
Humidity
80 %
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Weather overview
In Ontario in December, the average air temperature ranges from 1 °C (33 °F) during the day to -6 °C (21 °F) at night. There are 13 days of rain on average, where the rainfall is 71 mm (2.78 in).
Is December a good month to visit Ontario?
In December there are not good conditions to visit Ontario. A relatively low temperature of 1 °C (33 °F) may be ideal for walking or outdoor activities, but some people may have a different idea of the holiday. The night temperature of -6 °C (21 °F) is not inviting for evening and night activities except for visiting a bar and having beer or two.
What is the average number of rainy days in December in Ontario?
There are 13 days, which are rainy in Ontario in December, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 3.0 days of the week, or in general - 42 % days.
What is the temperature in Ontario during the day in December?
In Ontario in December, the average daily temperatures will be 1 °C (33 °F). Be sure to pack warm clothes, including a jacket and a warm sweater. On some days it may occasionally freeze, but with stronger winds, the feeling of cold may increase.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.Is it freezing in Ontario in December?
It is possible that it will be freezing in December in Ontario, night temperatures will be -6 °C (21 °F) on average.
What is the rainfall intensity in Ontario in December?
There is precipitation of 71 mm (2.78 in) in December in Ontario, which means 2 mm (0.09 in) rainfall per day on average.
How long is the day (from dawn till dusk) in Ontario in December?
The length of daylight in Ontario in December is 9 hours.
Is there a dry season in Ontario in December?
No, December is not a dry month in Ontario, expect rain approximately 13 days in a month.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.Is the temperature rising or falling in the course of time in December in Ontario?
During December in Ontario, the day temperatures are decreasing - from 4 °C (40 °F) at the beginning of the month to -1 °C (31 °F) at the end of the month.
What is the humidity in Ontario in December?
In December in Ontario, expect humidity around 80 %.
How windy is it in Ontario in December?
An average wind scale that can be expected in Ontario in December is 4.
Is Ontario rainier in December than in November?
No, December in Ontario is not a rainier month than November.