Please click on any column to get detailed information about Ottawa weather in that particular month. You will get daily weather information for that month for the last several years.
Day & Night air temperature, °F
The warmest month in Ottawa is august. The average daily temp is 81.6°F. The average nightly temp is 64.9°F.
Precipitation total, in.
Number of rainy days
This chart shows averages for the last three years. It shows medium and heavy rains only, it doesn't show light rains.
Wind speed, mph
Sunny, partly cloudy and cloudy days
Average sunny hours
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
* Charts above show average data for the last 3 years.
Best time for vacation in Ottawa
Ottawa on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Ottawa
Local time: 09:20
May 19, tuesday
1200
81°F
NE
21 mph
21 mph
1500
72°F
SE
14 mph
14 mph
1800
64°F
SE
14 mph
14 mph
2100
57°F
SE
11 mph
11 mph
May 20, wednesday
0000
54°F
S
9 mph
9 mph
0300
50°F
S
9 mph
9 mph
0600
48°F
S
9 mph
9 mph
0900
52°F
SW
12 mph
12 mph
