Ottawa Weather in May
Canada · 30-year monthly averages
👍 Good time to visit
May in Ottawa is pleasantly warm, with average daytime highs around 19°C (66°F) and nighttime lows near 8°C (46°F). Expect roughly 85mm of precipitation spread over about 10 rainy days, with a moderate amount of rain.
Avg high
19°C
66°F
Avg low
8°C
46°F
Rainfall
85mm
moderate
Rainy days
10
days with ≥1mm
🎒 What to pack
- light layers
- comfortable walking shoes
May vs the rest of the year
FAQ
- How hot is Ottawa in May?
- May in Ottawa is pleasantly warm, with average daytime highs around 19°C (66°F) and nighttime lows near 8°C (46°F). Expect roughly 85mm of precipitation spread over about 10 rainy days, with a moderate amount of rain.
- Does it rain a lot in Ottawa in May?
- Ottawa sees around 85mm of precipitation in May on average — moderate by global standards.
- Is May a good time to visit Ottawa?
- May is a good month to visit Ottawa, with generally agreeable conditions.