World Resorts Canada Ottawa Weather

Ottawa weather in August

Weather in Ottawa: August

Average day temperature: 76.2°F
Average night temperature: 61.0°F
Number of sunny days: 14 days
Day length: 13.3 - 14.7 hours
Number of rainy days: 5 days
Precipitation totals: 3.0 in.

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

Sunniest months:
July 14 days
August 14 days
June 12 days
Warmest months:
July 78.2 °F
August 76.2 °F
June 71.5 °F
Coldest months:
January 19.1 °F
February 21.4 °F
December 27.3 °F
Rainiest months:
June 6 days
April 6 days
August 5 days
Windiest months:
April 9.8 mph
March 9.0 mph
February 8.8 mph

Ottawa on a weather map

Leaflet | Tiles © Esri
Places in Canada:
Name
°F
+54°F
+48°F
+37°F
+48°F
+21°F
+39°F
+45°F
+45°F
+54°F
+46°F
+48°F
+28°F
+39°F
+54°F
24 Hours Forecast
Ottawa
Local time: 15:23
April 04, friday
1800
46°F
SE
7 mph
2100
41°F
SW
5 mph
April 05, saturday
0000
39°F
SW
4 mph
0300
37°F
W
5 mph
0600
36°F
W
9 mph
0900
32°F
W
11 mph
1200
34°F
W
12 mph
1500
34°F
W
12 mph
Units of measurement: °C / °F