Climate of Ottawa, Ontario, Canada
Point-value climate at Ottawa (Ontario, Canada). Population approximately 1,145,000.
Located in Ontario, Canada, Ottawa has a strongly continental climate. Population approximately 1,145,000. Monthly average temperatures range from -10.8°C / 12.6°F in January to 21.3°C / 70.3°F in July, with rainfall varying from 55 mm / 2.2 in (February) to 89 mm / 3.5 in (June) — about 917 mm / 36.1 in across the year. As the national capital of Canada, it's often the primary gateway for travellers. These are point-value climate normals sampled at Ottawa's coordinates — often quite different from the surrounding region's area-weighted average.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | -10.8°C12.6°F | 60 mm2.4″ | Snowy |
| February | -9.1°C15.6°F | 55 mm2.2″ | Snowy |
| March | -2.8°C27°F | 61 mm2.4″ | Snowy |
| April | 5.5°C41.9°F | 69 mm2.7″ | — |
| May | 13.2°C55.8°F | 82 mm3.2″ | — |
| June | 18.5°C65.3°F | 89 mm3.5″ | — |
| July | 21.3°C70.3°F | 87 mm3.4″ | — |
| August | 20.2°C68.4°F | 88 mm3.5″ | — |
| September | 15.4°C59.7°F | 85 mm3.3″ | — |
| October | 8.6°C47.5°F | 79 mm3.1″ | — |
| November | 2°C35.6°F | 84 mm3.3″ | Snowy |
| December | -6.4°C20.5°F | 78 mm3.1″ | Snowy |
Frequently asked questions
What is the best time to visit Ottawa?
Ottawa does not have a clearly "sunny" season by our profile cutoffs — see the "warmest and driest months" fallback for the closest picks. Ottawa's warmest month is July at an average of 21.3°C / 70.3°F, and its driest month is February with about 55 mm / 2.2 in of rain.
What is the climate of Ottawa?
Ottawa, in Ontario, Canada, has monthly average temperatures ranging from -10.8°C / 12.6°F in January to 21.3°C / 70.3°F in July. Annual rainfall is approximately 917 mm / 36.1 in, with the wettest month being June (89 mm / 3.5 in) and the driest February (55 mm / 2.2 in).
What is the average temperature in Ottawa in July?
The average temperature in Ottawa in July is 21.3°C / 70.3°F, with rainfall of about 87 mm / 3.4 in — the warmest month of the year.
When is the driest month in Ottawa?
The driest month in Ottawa is February, with about 55 mm / 2.2 in of average monthly rainfall. Average temperature that month is -9.1°C / 15.6°F.
When is the wettest month in Ottawa?
The wettest month in Ottawa is June, with approximately 89 mm / 3.5 in of average monthly rainfall.