Ottawa Weather in December
With daytime temperatures of 3°C (37°F) and nighttime lows of -6°C (21°F), December in Ottawa brings low temperatures during the day. Do keep in mind that quite a bit of snow/rainfall is typical. Around 77 mm (3 in) falls on average.
Rainfall in Ottawa in December
Snow/rain is expected on roughly 12 days, totalling around 77 mm (3 in) for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Ottawa in December
In December, expect low temperatures in Ottawa, with highs of 3°C (37°F) and lows of -6°C (21°F) at night. December is part of winter. Cold conditions tend to persist from morning through evening, so be prepared for winter weather. With lows of -6°C (21°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated. With temperatures this low, you'll need to dress warmly. Staying prepared is crucial to avoid the discomfort of the cold.December in Ottawa can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Ottawa's climate page.
Ottawa Temperature in December
Min Temperature
-6°C (21°F)
Max Temperature
3°C (37°F)
Chance of Rain
40%
Precipitation
77 mm (3 in)
Rainy days
12 days
Best Places in the United States of America in December
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Ottawa in December
Cold weather calls for smart layering in December. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Rain gear is recommended, you can expect wet weather on multiple days.What To Do in Ottawa in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Ottawa's climate page.
See the full Ottawa climate overview or explore weather in the United States of America.
