Weather in Ottawa: September
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Average day temperature: | 77.9°F |
| Average night temperature: | 59.8°F | |
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Number of sunny days: | 19 days |
| Day length: | 11.8 - 13.1 hours | |
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Number of rainy days: | 1 day |
| Precipitation totals: | 0.6 in. | |
| more information | ||
14 days
forecast
forecast
| Ottawa |
weather in
October
October
| Ottawa |
Air temperature in September, °F
Show year:
2024
2023
2022
The highest day temperature during September of 2024 was 92°F. At the same time the lowest night temperature was 43°F. Day and night temperature averages during September were 80.3°F and 57.9°F.
Sunny, partly cloudy and cloudy days
Mostly all days in September are sunny but cloudy days are also possible.
Precipitation total in September, in.
Precipitation total value in Ottawa in September is 0.6 in. Other months of the year show relatively similar values.
Wind speed in September, mph
The average wind speed value in September is 8.5 mph It makes September one of the least windy months of the year.
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 9.1.
Best time for vacation in Ottawa
Ottawa on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Ottawa
Local time: 01:14
November 24, sunday
0300
37°F
N
5 mph
5 mph
0600
37°F
N
6 mph
6 mph
0900
39°F
NW
7 mph
7 mph
1200
50°F
NW
9 mph
9 mph
1500
54°F
NW
11 mph
11 mph
1800
54°F
NW
7 mph
7 mph
2100
52°F
NW
7 mph
7 mph
November 25, monday
0000
52°F
NW
7 mph
7 mph
