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Ottawa, Canada Weather Averages

July is the hottest month in Ottawa with an average temperature of 22°C (71°F) and the coldest is January at -9°C (15°F). The wettest month is July with an average of 90mm of rain..

Average Temperature Ottawa

What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month

Average High Low Temperature Ottawa

What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

Average Rainfall Ottawa

What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

Ottawa : Next 24-Hour Weather

Today - 4th July 2026

Sunrise 05:20

Sunrise

Sunset 20:54

Sunset
17:00
Clear
27°C (79°F)
18:00
Clear
26°C (78°F)
19:00
Clear
24°C (74°F)
20:00
Clear
21°C (69°F)
21:00
Clear
19°C (65°F)
22:00
Clear
18°C (63°F)
23:00
Clear
17°C (61°F)

Tomorrow - 5th July 2026

Sunrise 05:20

Sunrise

Sunset 20:54

Sunset
0:00
Clear
16°C (60°F)
1:00
Clear
15°C (59°F)
2:00
Clear
14°C (57°F)
3:00
Clear
14°C (56°F)
4:00
Clear
13°C (55°F)
5:00
Clear
12°C (54°F)
6:00
Clear
12°C (53°F)
7:00
Clear
14°C (56°F)
8:00
Clear
16°C (61°F)
9:00
Clear
19°C (65°F)
10:00
Partly cloudy
21°C (69°F)
11:00
Partly cloudy
23°C (72°F)
12:00
Partly cloudy
24°C (74°F)
13:00
Cloudy
25°C (76°F)
14:00
Partly cloudy
25°C (76°F)
15:00
Cloudy
25°C (76°F)
16:00
Cloudy
25°C (77°F)