Ottawa Weather in December
Canada · 30-year monthly averages
🤔 Fair time to visit
December in Ottawa is freezing, with daytime highs below zero, with average daytime highs around -1°C (29°F) and nighttime lows near -9°C (16°F). Expect roughly 71mm of precipitation spread over about 11 rainy days, with a moderate amount of rain.
Avg high
-1°C
29°F
Avg low
-9°C
16°F
Rainfall
71mm
moderate
Rainy days
11
days with ≥1mm
🎒 What to pack
- insulated winter coat
- thermal layers
- gloves and a warm hat
December vs the rest of the year
FAQ
- How hot is Ottawa in December?
- December in Ottawa is freezing, with daytime highs below zero, with average daytime highs around -1°C (29°F) and nighttime lows near -9°C (16°F). Expect roughly 71mm of precipitation spread over about 11 rainy days, with a moderate amount of rain.
- Does it rain a lot in Ottawa in December?
- Ottawa sees around 71mm of precipitation in December on average — moderate by global standards.
- Is December a good time to visit Ottawa?
- December is a workable month to visit Ottawa, but expect some weather trade-offs.