Weather in Ottawa: August
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Average day temperature: | 76.2°F |
Average night temperature: | 61.0°F | |
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Number of sunny days: | 14 days |
Day length: | 13.3 - 14.7 hours | |
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Number of rainy days: | 5 days |
Precipitation totals: | 3.0 in. | |
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14 days
forecast
forecast
Ottawa |
weather in
September
September
Ottawa |
Air temperature in August, °F
Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
14
28
42
56
70
84
98
112
Day temperature | Night temperature |
The highest day temperature during August of 2024 was 85°F. At the same time the lowest night temperature was 49°F. Daily and nightly averages during August were 72.9°F and 59.0°F.
Sunny, partly cloudy and cloudy days
Sunny days | |
Partly cloudy days | |
Cloudy days |
39%
32%
29%
Number of sunny, partly cloudy and cloudy days in August is almost equal.
Precipitation total in August, in.
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.7
1.3
2.0
2.7
3.3
4.0
4.7
5.3
2.2
2.1
3.0
1.8
2.7
3.2
3.1
3.9
2.6
2.6
2.7
2.2
2.1
3.0
1.8
3.4
2.7
3.2
3.1
3.9
2.6
2.6
2.7
Precipitation total value in Ottawa in August is 3.4 in. Other months of the year show relatively similar values.
Wind speed in August, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.5
3.1
4.6
6.1
7.6
9.2
10.7
8.0
8.2
7.5
6.6
6.7
7.5
7.7
8.9
8.7
8.4
7.8
8.0
8.2
7.5
6.6
6.5
6.7
7.5
7.7
8.9
8.7
8.4
7.8
The average wind speed value in August is 6.5 mph It makes August lest windy month of the year.
Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.5
3.0
4.4
5.9
7.4
8.9
10.4
2.9
4.3
4.8
6.7
8.6
8.1
8.5
5.6
4.5
3.6
3.3
2.9
4.3
4.8
6.7
7.6
8.6
8.1
8.5
5.6
4.5
3.6
3.3
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 August is: 7.6.
Best time for vacation in Ottawa
Ottawa on a weather map
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Places in Canada:
Name
°F
24 Hours Forecast
Ottawa
Local time: 15:23
April 04, friday
1800

46°F
SE
7 mph
7 mph
2100

41°F
SW
5 mph
5 mph
April 05, saturday
0000

39°F
SW
4 mph
4 mph
0300

37°F
W
5 mph
5 mph
0600

36°F
W
9 mph
9 mph
0900

32°F
W
11 mph
11 mph
1200

34°F
W
12 mph
12 mph
1500

34°F
W
12 mph
12 mph