Ottawa Weather in May
19.4°C high · 7.5°C low · 81 mm rain · 8.7h sun
Yes — May is one of the best months to visit Ottawa, with mild weather and 8.7h of daily sunshine.
May at a glance
| Metric | Value |
|---|---|
| Average high | 19.4°C |
| Average low | 7.5°C |
| Rainfall | 81 mm |
| Sunshine | 8.7 hours/day |
| Daylight | 14.7 hours |
What to pack in May
Pack a jacket and layers for Ottawa in May.
Ottawa weather by month
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Frequently asked questions
What is the weather in Ottawa in May?
Highs of 19.4°C and lows of 7.5°C, with about 81 mm of rain and 8.7 hours of sunshine per day.
Is May a good time to visit Ottawa?
Yes — May is one of the best months to visit Ottawa, with mild weather and 8.7h of daily sunshine.
What to do in Ottawa · Best time to visit Ottawa
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.