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August weather forecast in Ottawa

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

27 July, sun

	747 mmHg		76%
	4.8 m/s

27 July, Sunday. day, 23°; night, 18°; clear

28 July, mon

	747 mmHg		69%
	5 m/s

28 July, Monday. day, 24°; night, 19°; clear

29 July, tue

	748 mmHg		68%
	4 m/s

29 July, Tuesday. day, 23°; night, 18°; partly cloudy

30 July, wed

	750 mmHg		67%
	4.3 m/s

30 July, Wednesday. day, 23°; night, 18°; clear

31 July, thu

	750 mmHg		66%
	4 m/s

31 July, Thursday. day, 23°; night, 18°; rain

1 August, fri

	749 mmHg		69%
	3.9 m/s

1 August, Friday. day, 24°; night, 18°; rain

2 August, sat

	748 mmHg		76%
	4.1 m/s

2 August, Saturday. day, 23°; night, 19°; rain

3 August, sun

	748 mmHg		72%
	4.5 m/s

3 August, Sunday. day, 24°; night, 18°; rain

4 August, mon

	749 mmHg		72%
	5.3 m/s

4 August, Monday. day, 24°; night, 18°; partly cloudy

5 August, tue

	749 mmHg		67%
	4.8 m/s

5 August, Tuesday. day, 24°; night, 18°; partly cloudy

6 August, wed

	749 mmHg		70%
	6.1 m/s

6 August, Wednesday. day, 22°; night, 18°; clear

7 August, thu

	749 mmHg		69%
	5.4 m/s

7 August, Thursday. day, 21°; night, 16°; clear

8 August, fri

	749 mmHg		69%
	4.4 m/s

8 August, Friday. day, 22°; night, 17°; partly cloudy

9 August, sat

	749 mmHg		68%
	4.3 m/s

9 August, Saturday. day, 23°; night, 17°; partly cloudy

10 August, sun

	749 mmHg		72%
	4.5 m/s

10 August, Sunday. day, 23°; night, 18°; rain

11 August, mon

	749 mmHg		74%
	4.5 m/s

11 August, Monday. day, 23°; night, 18°; clear

12 August, tue

	749 mmHg		75%
	4.6 m/s

12 August, Tuesday. day, 23°; night, 18°; rain

13 August, wed

	748 mmHg		75%
	4.5 m/s

13 August, Wednesday. day, 22°; night, 18°; clear

14 August, thu

	749 mmHg		77%
	4.5 m/s

14 August, Thursday. day, 21°; night, 16°; rain

15 August, fri

	749 mmHg		79%
	3.9 m/s

15 August, Friday. day, 22°; night, 18°; rain

16 August, sat

	751 mmHg		69%
	4.1 m/s

16 August, Saturday. day, 23°; night, 17°; partly cloudy

17 August, sun

	751 mmHg		68%
	4.5 m/s

17 August, Sunday. day, 23°; night, 17°; rain

18 August, mon

	749 mmHg		74%
	5.4 m/s

18 August, Monday. day, 23°; night, 18°; rain

19 August, tue

	748 mmHg		68%
	4.6 m/s

19 August, Tuesday. day, 24°; night, 18°; clear

20 August, wed

	750 mmHg		68%
	5.1 m/s

20 August, Wednesday. day, 23°; night, 17°; rain

21 August, thu

	750 mmHg		73%
	4.8 m/s

21 August, Thursday. day, 22°; night, 17°; rain

22 August, fri

	749 mmHg		77%
	5.6 m/s

22 August, Friday. day, 21°; night, 17°; rain

23 August, sat

	752 mmHg		67%
	5 m/s

23 August, Saturday. day, 22°; night, 17°; rain

24 August, sun

	753 mmHg		63%
	5.1 m/s

24 August, Sunday. day, 23°; night, 17°; clear

25 August, mon

	751 mmHg		67%
	5 m/s

25 August, Monday. day, 23°; night, 17°; clear

26 August, tue

	751 mmHg		69%
	5.6 m/s

26 August, Tuesday. day, 21°; night, 17°; clear

27 August, wed

	753 mmHg		66%
	4.5 m/s

27 August, Wednesday. day, 22°; night, 16°; clear

28 August, thu

	752 mmHg		68%
	4.8 m/s

28 August, Thursday. day, 21°; night, 17°; clear

29 August, fri

	751 mmHg		74%
	5.4 m/s

29 August, Friday. day, 21°; night, 16°; clear

30 August, sat

	751 mmHg		69%
	4.8 m/s

30 August, Saturday. day, 22°; night, 16°; rain

31 August, sun

	751 mmHg		69%
	5.1 m/s

31 August, Sunday. day, 22°; night, 17°; rain

1 September, mon

	751 mmHg		69%
	5.3 m/s

1 September, Monday. day, 23°; night, 18°; rain

2 September, tue

	751 mmHg		72%
	4.3 m/s

2 September, Tuesday. day, 23°; night, 17°; clear

3 September, wed

	750 mmHg		67%
	4.5 m/s

3 September, Wednesday. day, 22°; night, 17°; clear

4 September, thu

	749 mmHg		67%
	5.1 m/s

4 September, Thursday. day, 22°; night, 16°; partly cloudy

5 September, fri

	751 mmHg		72%
	5.1 m/s

5 September, Friday. day, 20°; night, 17°; clear

6 September, sat

	752 mmHg		70%
	5.3 m/s

6 September, Saturday. day, 21°; night, 15°; partly cloudy

Average data for 10 years

Ottawa August

11

sunny days

15

days with precipitation

5

cloudy days

11 sunny days; 15 days with precipitation; 5 cloudy days;

70

%

air humidity

3.5

m/s

WindW

86

mm of precipitation

(9% of annual average)

air humidity 70%; 86 millimeters of precipitation (9% of annual average); Wind westerly 3.5 Meters per second

Weather graphs for August

TemperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

SW

W

W

W

W

W

NW

W

NW

W

W

N

SW

SW

SW

W

W

SW

W

SW

SW

SW

NW

SW

SW

W

W

NW

NW

W

W

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Daytime temperature

Night-time temperature

Cities near you

Montreal
Brooklyn
Colchester
Anjou
Laval
Lake George
Amherst
Claremont
Lenox

Cities with similar weather in August

Ust-Kamenogorsk
Pavlodar
Zurich
Tskhinval
Seattle
Ljubljana
Strasbourg
Wroclaw
Brno

The weather forecast for August 2024 is based on historical data from the past 10 years.

August in Ottawa is the rainiest month of the year. In August, the weather in Ottawa is typically warm. Average daily high temperature in August is about 22 degrees above zero. On average, Ottawa has 15 rainy, 11 sunny, and 5 partly cloudy days in August. The rains are usually heavy.

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