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August weather forecast in Dumbarton

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

	746 mmHg		85%
	4.3 m/s

27 July, Sunday. day, 17°; night, 11°; rain

28 July, mon

	746 mmHg		85%
	4.4 m/s

28 July, Monday. day, 17°; night, 11°; rain

29 July, tue

	746 mmHg		85%
	4.8 m/s

29 July, Tuesday. day, 17°; night, 12°; rain

30 July, wed

	747 mmHg		85%
	4.5 m/s

30 July, Wednesday. day, 17°; night, 11°; rain

31 July, thu

	746 mmHg		84%
	4.69 m/s

31 July, Thursday. day, 17°; night, 11°; rain

1 August, fri

	746 mmHg		85%
	4.6 m/s

1 August, Friday. day, 18°; night, 11°; rain

2 August, sat

	746 mmHg		84%
	4.9 m/s

2 August, Saturday. day, 18°; night, 11°; rain

3 August, sun

	746 mmHg		84%
	4.8 m/s

3 August, Sunday. day, 17°; night, 11°; rain

4 August, mon

	747 mmHg		84%
	4.9 m/s

4 August, Monday. day, 17°; night, 12°; rain

5 August, tue

	748 mmHg		84%
	4.69 m/s

5 August, Tuesday. day, 17°; night, 11°; rain

6 August, wed

	747 mmHg		85%
	4.4 m/s

6 August, Wednesday. day, 17°; night, 11°; rain

7 August, thu

	748 mmHg		84%
	4.5 m/s

7 August, Thursday. day, 17°; night, 11°; partly cloudy

8 August, fri

	748 mmHg		82%
	4.4 m/s

8 August, Friday. day, 18°; night, 10°; clear

9 August, sat

	748 mmHg		84%
	4.8 m/s

9 August, Saturday. day, 17°; night, 11°; rain

10 August, sun

	748 mmHg		85%
	4.5 m/s

10 August, Sunday. day, 18°; night, 11°; rain

11 August, mon

	747 mmHg		85%
	4.69 m/s

11 August, Monday. day, 17°; night, 11°; overcast

12 August, tue

	747 mmHg		85%
	4.8 m/s

12 August, Tuesday. day, 17°; night, 11°; rain

13 August, wed

	747 mmHg		85%
	4.6 m/s

13 August, Wednesday. day, 17°; night, 11°; rain

14 August, thu

	747 mmHg		87%
	4.3 m/s

14 August, Thursday. day, 17°; night, 11°; rain

15 August, fri

	747 mmHg		86%
	4.8 m/s

15 August, Friday. day, 17°; night, 11°; rain

16 August, sat

	746 mmHg		85%
	4.8 m/s

16 August, Saturday. day, 17°; night, 11°; rain

17 August, sun

	745 mmHg		85%
	4.8 m/s

17 August, Sunday. day, 17°; night, 11°; rain

18 August, mon

	744 mmHg		85%
	5 m/s

18 August, Monday. day, 17°; night, 11°; rain

19 August, tue

	745 mmHg		86%
	5 m/s

19 August, Tuesday. day, 17°; night, 11°; rain

20 August, wed

	746 mmHg		85%
	4.8 m/s

20 August, Wednesday. day, 17°; night, 11°; rain

21 August, thu

	747 mmHg		86%
	5.2 m/s

21 August, Thursday. day, 17°; night, 11°; rain

22 August, fri

	748 mmHg		83%
	4.5 m/s

22 August, Friday. day, 17°; night, 10°; partly cloudy

23 August, sat

	747 mmHg		86%
	4.5 m/s

23 August, Saturday. day, 17°; night, 10°; rain

24 August, sun

	746 mmHg		84%
	4.3 m/s

24 August, Sunday. day, 17°; night, 10°; partly cloudy

25 August, mon

	746 mmHg		84%
	4.19 m/s

25 August, Monday. day, 16°; night, 10°; partly cloudy

26 August, tue

	747 mmHg		86%
	4.1 m/s

26 August, Tuesday. day, 16°; night, 10°; rain

27 August, wed

	748 mmHg		86%
	4.8 m/s

27 August, Wednesday. day, 16°; night, 10°; overcast

28 August, thu

	748 mmHg		84%
	5 m/s

28 August, Thursday. day, 16°; night, 10°; overcast

29 August, fri

	748 mmHg		84%
	5.3 m/s

29 August, Friday. day, 15°; night, 10°; partly cloudy

30 August, sat

	750 mmHg		84%
	4.6 m/s

30 August, Saturday. day, 16°; night, 10°; partly cloudy

31 August, sun

	751 mmHg		83%
	4.5 m/s

31 August, Sunday. day, 16°; night, 9°; partly cloudy

1 September, mon

	750 mmHg		86%
	4.6 m/s

1 September, Monday. day, 16°; night, 10°; overcast

2 September, tue

	749 mmHg		86%
	4.5 m/s

2 September, Tuesday. day, 16°; night, 10°; rain

3 September, wed

	749 mmHg		85%
	4.69 m/s

3 September, Wednesday. day, 16°; night, 10°; overcast

4 September, thu

	749 mmHg		84%
	4.6 m/s

4 September, Thursday. day, 17°; night, 10°; clear

5 September, fri

	749 mmHg		85%
	4.69 m/s

5 September, Friday. day, 16°; night, 10°; rain

6 September, sat

	748 mmHg		85%
	5.4 m/s

6 September, Saturday. day, 16°; night, 10°; rain

Average data for 10 years

Dumbarton August

1

sunny day

20

days with precipitation

14

cloudy days

1 sunny day; 20 days with precipitation; 14 cloudy days;

85

%

air humidity

3.2

m/s

WindS

153

mm of precipitation

(9% of annual average)

air humidity 85%; 153 millimeters of precipitation (9% of annual average); Wind southerly 3.2 Meters per second

Weather graphs for August

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

S

S

S

S

S

S

SW

SW

S

SW

S

S

SW

S

SW

S

S

S

S

S

SW

SW

S

SW

S

S

SW

SW

SW

SW

SW

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

Dublin
Edinburgh
Manchester
Liverpool
Glasgow
Newcastle upon Tyne
Fort William
Windermere
Kirkwall

Cities with similar weather in August

Tallinn
Cholpon-Ata
Sydney
Reykyavik
Oslo
San Francisco
Palanga
Dublin
Buenos Aires

The weather forecast for August 2025 is based on historical data from the past 10 years.

August in Dumbarton is the rainiest month of the year. In August, the weather in Dumbarton is typically warm. Average daily high temperature in August is about 17 degrees above zero. On average, Dumbarton has 20 rainy, 7 partly cloudy, 3 cloudy, and 1 sunny day in August. The rains are usually heavy. August as well as January, February, March, and April is considered the most uncomfortable time to visit Dumbarton.

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