Ottawa Weather in December

Thinking of visiting Ottawa in December? Expect very low temperatures reaching 0°C (32°F) during the day, dropping to -9°C (16°F) at night, and note that quite a bit of snowfall is likely.

Rainfall in Ottawa in December

Past climate data indicates that roughly 16 days will see snow, totalling around 85 mm (3.3 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Ottawa in December

Expect highs of 0°C (32°F) in Ottawa in December, with nights dropping to around -9°C (16°F). December marks the winter season. It stays very cold throughout much of the day, so warm winter clothing is essential. Nights are well below freezing at -9°C (16°F). An extra blanket is a good idea if you feel the cold, especially in older or less well-heated accommodation. As one of the coldest months, it's important to layer up to stay warm. Don't let the chill catch you off-guard.

Sunshine in Ottawa in December

With limited sunshine this month, there are about 83 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Ottawa. Our weather planner can help you explore destinations with more pleasant weather conditions.