Weather in Ottawa in July 2025
- July is usually the hottest month of the year in Ottawa;
Average weather
Average temperature in Ottawa in July
Going from a maximum of +93°F during the day to a minimum of +54°F during the night, the temperature in July averages around +82°F.
The average maximum temperature goes down 23% by the end of the month, compared with the beginning of the month, from +81°F to +72°F.
Is Ottawa warm or cold in July?
Ottawa is typically warm in July.
Maximum temperatures go up compared to the previous month from +75°F to +81°F. The minimum temperature also goes up from +55°F to +61°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
July is the hottest month in Ottawa, here is the comparison with other months:
Climate in Ottawa in July
| June | July | August | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +75°F | +81°F | +77°F | ||||
| Min. temperature | ||||||
| +32°F | +43°F | +39°F | ||||
| Max. temperature | ||||||
| +97°F | +97°F | +97°F | ||||
| Rainfall | ||||||
| 91 mm | 91 mm | 85 mm | ||||
| Wind | ||||||
| 3 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 68% | 69% | 72% | ||||
| Air pressure | ||||||
| 1012 HPa | 1012 HPa | 1014 HPa | ||||
| Sunny days | ||||||
| 3 | 3 | 4 | ||||
| Cloudy days | ||||||
| 11 | 11 | 11 | ||||
| Rainy days | ||||||
| 13 | 11 | 12 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
July weather is still as good as in June. It’s getting warmer as July arrives. The average maximum temperature goes up from +75°F to +81°F during the day. The rainfall amount in July stays the same as in the previous month with a 91 mm of total precipitation. Humidity rises from 68% to 69%. Winds are calmer in comparison to June, going down from 3 m/s to 2 m/s on average. The amount of sunny days stay about the same, averaging 3 sunny days during the month.
August brings much the same weather, it remains good.
Wind
The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Ottawa is gradually increasing during July, going from 2 m/s to 4 m/s over the course of the month.
Rain
How was the weather last July in Ottawa?
Climate Change Over the Years
The climate in Ottawa in July has not changed that much over the last 43 years.
The average temperature was the lowest in 1992 (+51°F) and the highest in 2012 (+56°F). The driest year was 1985 with only 469 mm of rainfall, and the wettest year was 2017 with 1378 mm.
FAQ
Is July a good time to visit Ottawa?
Can you sunbathe in Ottawa in July?
Is Ottawa rainy in July?
Is it sunny in Ottawa in July?
Other cities in Canada
Monthly weather in Ottawa
Source of the data
For this page, we’ve looked at the typical weather in Ottawa, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.