Measurements:
°C
°F
CURRENT WEATHER
19:46
Ottawa
42°F
E 14 mph
Feels like: 34°F
Precip: 0%
World Resorts USA Ottawa Weather August Weather in Ottawa

Ottawa Weather: August

Average Day Temperature: 84.9°F
Average Night Temperature: 67.3°F
Number of Sunny Days: 16 days
Sunshine Hours: 13.1 - 14.4 hours
Number of Rainy Days: 2 days
Precipitation Totals: 0.8 in
detailed information

Air Temperature in August, °F

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
17
34
51
68
85
102
119
136
Day Temperature   
Night Temperature

The highest day temperature in August 2024 was 100°F. The lowest night temperature was 51°F. The average values for day and night temperatures during August were 82.7°F и 64.5°F respectivly.

Sunny, Cloudy and Gloomy days
Sunny days
Cloudy days
Gloomy days
52%
35%
13%

Most of the days in August are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in August, in

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
0.3
0.6
0.9
1.2
1.5
1.7
2.0

Precipitation total in August for Ottawa is 0.8 in.

Wind Speed in August, mph
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.9
3.9
5.8
7.7
9.7
11.6
13.5

The average wind speed in August is 7.3 mph. It makes August one of the most windless months of the year for Ottawa.

Average Sunny Hours Per Day
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.7
3.3
5.0
6.6
8.3
9.9
11.6

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Ottawa in August is 9.2 hours.

Best Time to Visit Ottawa
The most sunny months:
September 19 days
August 16 days
June 15 days
The most warm months:
August 84.9 °F
July 83.7 °F
June 81.8 °F
The most cold months:
January 27.0 °F
February 31.3 °F
December 36.5 °F
The most rainy months:
June 3 days
May 3 days
March 3 days
The most windy months:
March 11 mph
April 11 mph
November 10 mph
more details

Ottawa on the Weather Map

USA Resorts:
NAME
F°
Boston +34
Chicago +42
Hawaii +78
Honolulu +78
Houston +76
Las Vegas +82
Los Angeles +72
Miami +76
New York +42
Orlando +74
San Diego +64
San Francisco +54
Sarasota +70
Tampa +72
Washington +46
all resorts
24 Hours Weather Forecast
Ottawa
Local time: 19:46
23 mar, sunday
2100 42°F
E
14 mph
24 mar, monday
0000 38°F
E
16 mph
0300 34°F
E
13 mph
0600 30°F
E
16 mph
0900 36°F
E
17 mph
1200 50°F
E
20 mph
1500 56°F
E
20 mph
1800 52°F
E
15 mph