Ottawa Weather in December

In Ottawa, December brings low daytime temperatures around 6°C (43°F), with nights cooling to -5°C (23°F). Some snow/rainfall is to be expected.

Rainfall in Ottawa in December

Analyzing past climate data, one can expect approximately 7 days of snow/rain, averaging 54 mm (2.1 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Ottawa in December

In December, Ottawa gets low temperatures, with highs of 6°C (43°F). Nights cool to around -5°C (23°F). During December, you'll experience the winter season. It stays cool throughout the day, so warm layers are a good idea from morning to evening. At -5°C (23°F) overnight, frost and ice are likely outside. Indoors, consider packing an extra blanket if you're unsure about the heating.

Sunshine in Ottawa in December

The month brings about 151 hours of sunlight, offering a comfortable mix of sun and overcast.

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.