Weather in Ottawa in Autumn
| September | October | November | ||||
| Average day temperature: | 77.9°F | 62.8°F | 49.0°F | |||
| Average night temperature: | 59.8°F | 49.9°F | 39.7°F | |||
| Number of sunny days: | 19 days | 14 days | 14 days | |||
| Day length: | 11.8 - 13.1 h. | 10.4 - 11.7 h. | 9.4 - 10.4 h. | |||
| Number of rainy days: | 1 day | 1 day | 1 day | |||
| Precipitation totals: | 0.6 in. | 1.0 in. | 0.4 in. | |||
Day & Night air temperature, °F
September
October
November
0
13
26
39
52
65
78
91
104
49.0
62.8
77.9
39.7
49.9
59.8
| Day temperature | Night temperature |
Precipitation total, in.
September
October
November
0.0
0.2
0.3
0.5
0.7
0.8
1.0
1.2
1.4
0.4
1
0.6
Sunny, partly cloudy and cloudy days
September
October
November
0
5
10
15
20
25
30
35
8
9
5
8
8
7
14
14
19
| Cloudy days | Partly cloudy days | Sunny days |
Wind speed, mph
September
October
November
0.0
1.8
3.5
5.3
7.0
8.8
10.6
12.3
10.3
9.8
8.5
Average sunny hours
September
October
November
0
1
2
3
4
5
6
7
8
9
10
5.5
6.9
9.1
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.
Best time for vacation in Ottawa
Ottawa on a weather map
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Places in USA:
Name
°F
24 Hours Forecast
Ottawa
Local time: 08:23
April 13, sunday
0900
50°F
N
17 mph
17 mph
1200
57°F
N
21 mph
21 mph
1500
63°F
N
19 mph
19 mph
1800
66°F
N
11 mph
11 mph
2100
63°F
N
12 mph
12 mph
April 14, monday
0000
59°F
NE
7 mph
7 mph
0300
57°F
E
9 mph
9 mph
0600
52°F
SE
12 mph
12 mph
