Weather in Ottawa: December
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Average day temperature: | 26.8°F |
| Average night temperature: | 22.1°F | |
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Number of sunny days: | 5 days |
| Day length: | 8.7 - 9.0 hours | |
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Number of days with precipitation: | 5 days |
| Precipitation totals: | 2.2 in. | |
| more information | ||
14 days
forecast
forecast
| Ottawa |
weather in
January
January
| Ottawa |
Air temperature in December, °F
Show year:
2025
2024
2023
The highest day temperature during December of 2025 was 41°F. At the same time the lowest night temperature was -9°F. Daily and nightly averages during December were 20.3°F and 12.4°F.
Sunny, partly cloudy and cloudy days
Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in December, in.
Precipitation total value in Ottawa in December is 1.9 in. Other months of the year show relatively similar values.
Wind speed in December, mph
The average wind speed value in December is 8.0 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 3.3.
Best time for vacation in Ottawa
Ottawa on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Ottawa
Local time: 13:53
September 15, tuesday
1500
57°F
NW
5 mph
5 mph
1800
57°F
NW
6 mph
6 mph
2100
57°F
W
6 mph
6 mph
September 16, wednesday
0000
61°F
NW
4 mph
4 mph
0300
63°F
NE
4 mph
4 mph
0600
61°F
NE
4 mph
4 mph
0900
64°F
E
6 mph
6 mph
1200
70°F
E
9 mph
9 mph
