Weather · Ottawa, Canada
Ottawa Weather in December
December in Ottawa averages 1°C by day and -5°C at night, with about 102mm of rain. That makes it not the easiest month, weather-wise.
Avg high
1°C
34°F
Avg low
-5°C
23°F
Rainfall
102mm
#5 wettest of 12
What to pack
Warm layers and a proper coat. Bring a compact umbrella for the odd shower.
Timing a trip around the weather? A Local Friend in Ottawa builds it around the season for you.