Ottawa Weather in July

During July, Ottawa experiences high daytime temperatures of 29°C (84°F) and cooler nights around 18°C (64°F). Expect quite a bit of rainfall. Around 89 mm (3.5 in) is typical.

Rainfall in Ottawa in July

The climate data from previous years indicates about 10 days of rain, averaging 89 mm (3.5 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Ottawa in July

Ottawa has excellent weather in July, with days reaching 29°C (84°F) and nights cooling to 18°C (64°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights drop to around 18°C (64°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable. This month tends to be the warmest of the year. Light, comfortable clothing will serve you well.

If you favor pleasant temperatures and minimal rainfall, July is one of the best months to visit Ottawa.