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.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Ottawa's climate page.
Ottawa Temperature in July
Min Temperature
18°C (64°F)
Max Temperature
29°C (84°F)
Chance of Rain
33%
Precipitation
89 mm (3.5 in)
Rainy days
10 days
Best Places in the United States of America in July
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in July →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Ottawa in July
Warm but pleasant conditions in Ottawa in July. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags.What To Do in Ottawa in July
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Ottawa's climate page.
See the full Ottawa climate overview or explore weather in the United States of America.
