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.