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August weather forecast in Chepstow

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

	743 mmHg		73%
	5.6 m/s		+18

27 July, Sunday. day, 20°; night, 15°; overcast

28 July, mon

	743 mmHg		75%
	5.8 m/s		+18

28 July, Monday. day, 18°; night, 15°; rain

29 July, tue

	744 mmHg		75%
	6 m/s		+17

29 July, Tuesday. day, 18°; night, 14°; rain

30 July, wed

	744 mmHg		75%
	5.5 m/s		+17

30 July, Wednesday. day, 19°; night, 13°; rain

31 July, thu

	742 mmHg		80%
	4.9 m/s		+17

31 July, Thursday. day, 19°; night, 14°; rain

1 August, fri

	741 mmHg		77%
	6.1 m/s		+18

1 August, Friday. day, 19°; night, 14°; rain

2 August, sat

	741 mmHg		81%
	5.9 m/s		+17

2 August, Saturday. day, 19°; night, 14°; rain

3 August, sun

	741 mmHg		81%
	6.6 m/s		+17

3 August, Sunday. day, 18°; night, 14°; clear

4 August, mon

	742 mmHg		79%
	6 m/s		+17

4 August, Monday. day, 18°; night, 14°; rain

5 August, tue

	743 mmHg		77%
	5.1 m/s		+18

5 August, Tuesday. day, 18°; night, 14°; rain

6 August, wed

	744 mmHg		76%
	4.5 m/s		+18

6 August, Wednesday. day, 19°; night, 14°; clear

7 August, thu

	745 mmHg		74%
	5 m/s		+18

7 August, Thursday. day, 19°; night, 14°; overcast

8 August, fri

	746 mmHg		75%
	5.1 m/s		+18

8 August, Friday. day, 18°; night, 14°; overcast

9 August, sat

	745 mmHg		77%
	6 m/s		+17

9 August, Saturday. day, 18°; night, 14°; rain

10 August, sun

	745 mmHg		75%
	5.5 m/s		+18

10 August, Sunday. day, 18°; night, 14°; overcast

11 August, mon

	744 mmHg		75%
	6 m/s		+17

11 August, Monday. day, 18°; night, 14°; rain

12 August, tue

	743 mmHg		80%
	5.6 m/s		+17

12 August, Tuesday. day, 18°; night, 14°; overcast

13 August, wed

	742 mmHg		82%
	5.6 m/s		+17

13 August, Wednesday. day, 17°; night, 14°; rain

14 August, thu

	745 mmHg		75%
	5 m/s		+18

14 August, Thursday. day, 19°; night, 14°; partly cloudy

15 August, fri

	745 mmHg		74%
	6 m/s		+18

15 August, Friday. day, 19°; night, 14°; clear

16 August, sat

	742 mmHg		75%
	5.6 m/s		+18

16 August, Saturday. day, 18°; night, 14°; rain

17 August, sun

	742 mmHg		75%
	6 m/s		+18

17 August, Sunday. day, 18°; night, 14°; rain

18 August, mon

	743 mmHg		79%
	6.1 m/s		+18

18 August, Monday. day, 18°; night, 14°; overcast

19 August, tue

	744 mmHg		81%
	6 m/s		+18

19 August, Tuesday. day, 18°; night, 15°; rain

20 August, wed

	745 mmHg		82%
	5.5 m/s		+17

20 August, Wednesday. day, 18°; night, 15°; rain

21 August, thu

	745 mmHg		75%
	4.9 m/s		+18

21 August, Thursday. day, 19°; night, 15°; rain

22 August, fri

	742 mmHg		76%
	5.6 m/s		+18

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

23 August, sat

	742 mmHg		75%
	5.8 m/s		+17

23 August, Saturday. day, 18°; night, 13°; rain

24 August, sun

	740 mmHg		81%
	6 m/s		+17

24 August, Sunday. day, 17°; night, 13°; rain

25 August, mon

	739 mmHg		86%
	5.6 m/s		+17

25 August, Monday. day, 18°; night, 15°; rain

26 August, tue

	744 mmHg		75%
	5.6 m/s		+18

26 August, Tuesday. day, 18°; night, 14°; clear

27 August, wed

	745 mmHg		77%
	6.1 m/s		+17

27 August, Wednesday. day, 18°; night, 14°; overcast

28 August, thu

	746 mmHg		77%
	5.1 m/s		+17

28 August, Thursday. day, 17°; night, 14°; overcast

29 August, fri

	746 mmHg		79%
	4.5 m/s		+17

29 August, Friday. day, 17°; night, 14°; overcast

30 August, sat

	746 mmHg		74%
	4.5 m/s		+18

30 August, Saturday. day, 18°; night, 14°; clear

31 August, sun

	747 mmHg		74%
	4.8 m/s		+18

31 August, Sunday. day, 18°; night, 13°; rain

1 September, mon

	747 mmHg		74%
	5.6 m/s		+18

1 September, Monday. day, 18°; night, 13°; partly cloudy

2 September, tue

	744 mmHg		81%
	5.5 m/s		+17

2 September, Tuesday. day, 17°; night, 13°; overcast

3 September, wed

	743 mmHg		77%
	5.6 m/s		+17

3 September, Wednesday. day, 18°; night, 14°; overcast

4 September, thu

	744 mmHg		81%
	5.6 m/s		+17

4 September, Thursday. day, 17°; night, 14°; overcast

5 September, fri

	743 mmHg		77%
	5.5 m/s		+17

5 September, Friday. day, 17°; night, 14°; rain

6 September, sat

	744 mmHg		81%
	5.1 m/s		+17

6 September, Saturday. day, 17°; night, 13°; overcast

Average data for 10 years

Chepstow August

5

sunny days

16

days with precipitation

10

cloudy days

5 sunny days; 16 days with precipitation; 10 cloudy days;

77

%

air humidity

4.3

m/s

WindSW

64

mm of precipitation

(10% of annual average)

+18

°C

Water temperature

air humidity 77%; 64 millimeters of precipitation (10% of annual average); Wind south-westerly 4.3 Meters per second; Water temperature +18°

Weather graphs for August

TemperatureWater temperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

S

SW

SW

SW

SW

W

W

W

SW

W

W

W

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

S

SW

W

SW

W

SW

SW

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

London
Dublin
Brest
Manchester
Liverpool
Oxford
Trowbridge
Wicklow
Le Havre

Cities with similar weather in August

Helsinki
Riga
Tallinn
Stockholm
Sydney
Oslo
San Francisco
Yurmala
Palanga

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

In August, the weather in Chepstow is typically warm. Average daily high temperature in August is about 18 degrees above zero. On average, Chepstow has 16 rainy, 9 cloudy, 5 sunny, and 1 partly cloudy day in August. The rains are usually moderate.

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