When is the best time to visit Ottawa?
The best time to visit Ottawa is between May and October, the most comfortable stretch of the year on these averages.
Temperatures peak in July at around 21°C (71°F). October is the wettest month, with about 94 mm of rain. Outside May–October the numbers move but the year has no single wet or dry season.
Part of Canada weather.
Ottawa weather by month
TemperatureRainfall
Average temperature and rainfall, month by month
Every figure below is a 1991–2020 climate normal for Ottawa, in °C and °F. Open a month for what to expect and what to pack.
| Month | Average | Rainfall |
|---|---|---|
| January | -9°C / 15°F | 60 mm |
| February | -8°C / 17°F | 53 mm |
| March | -2°C / 28°F | 56 mm |
| April | 6°C / 43°F | 74 mm |
| May | 14°C / 57°F | 66 mm |
| June | 19°C / 65°F | 87 mm |
| July | 21°C / 71°F | 82 mm |
| August | 20°C / 68°F | 89 mm |
| September | 16°C / 60°F | 78 mm |
| October | 9°C / 48°F | 94 mm |
| November | 2°C / 36°F | 59 mm |
| December | -5°C / 23°F | 80 mm |
Where to stay in Ottawa
Dates are a starting point for May.
Travel guides for Ottawa
What to read before you book.
Check another month
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FAQs about Ottawa weather
Climate averages for Ottawa, 1991–2020.
The best time to visit Ottawa is between May and October, the most comfortable stretch of the year on these averages.
July is the hottest month, with an average around 21°C.
October is the wettest month, with about 94 mm of rain.
January is the coolest month, averaging -9°C (15°F) against 21°C (71°F) in July.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what each month is usually like, which is what you want when booking ahead. For today or the coming week, check a live forecast.
No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.
