Ottawa Weather: December
 |
Average Day Temperature: | 35.5°F |
|
Average Night Temperature: | 27.3°F |
|
Number of Sunny Days: | 9 days |
| Sunshine Hours: | 9.2 - 9.4 hours | |
|
Number of Rainy Days: | 2 days |
| Precipitation Totals: | 0.6 in | |
| detailed information | ||
14 day weather
forecast
forecast
| Ottawa |
Air Temperature in December, °F
The highest day temperature in December 2025 was 56°F. The lowest night temperature was -7°F. The average values for day and night temperatures during December were 30.5°F и 21.4°F respectivly.
Sunny, Cloudy and Gloomy days
Most of the days in December are gloomy but you can also expect sunny days.
Precipitation Totals in December, in
Precipitation total in December for Ottawa is 0.6 in. It makes december one of the least rainy months of the year.
Wind Speed in December, mph
The average wind speed in December is 9.7 mph.
Average Sunny Hours Per Day
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Ottawa in December is 4.2 hours.
Ottawa on the Weather Map
USA Resorts:
NAME
F°
| Boston |  |
+96 |
| Chicago | |
+86 |
| Hawaii |  |
+82 |
| Houston |  |
+80 |
| Las Vegas |  |
+118 |
| Los Angeles | |
+100 |
| Maui | |
+78 |
| Miami | |
+96 |
| Myrtle Beach | |
+90 |
| New York | |
+104 |
| San Diego | |
+94 |
| San Francisco | |
+82 |
| Santa Monica | |
+82 |
| Sarasota | |
+96 |
| Tampa | |
+98 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Ottawa
Local time: 15:47
15 jul, wednesday
| 1800 |  |
100°F | E 3 mph |
| 2100 |  |
88°F | SE 2 mph |
16 jul, thursday
| 0000 | |
82°F | S 2 mph |
| 0300 | |
76°F | SW 3 mph |
| 0600 |  |
74°F | SW 3 mph |
| 0900 | |
82°F | SW 2 mph |
| 1200 | |
88°F | W 5 mph |
| 1500 |  |
90°F | W 4 mph |