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August weather forecast in Châteaulin

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

	760 mmHg		80%
	5.6 m/s		+19

27 July, Sunday. day, 19°; night, 15°; clear

28 July, mon

	760 mmHg		79%
	5.9 m/s		+18

28 July, Monday. day, 19°; night, 15°; rain

29 July, tue

	761 mmHg		75%
	5.1 m/s		+18

29 July, Tuesday. day, 19°; night, 14°; overcast

30 July, wed

	760 mmHg		74%
	4.5 m/s		+19

30 July, Wednesday. day, 19°; night, 14°; partly cloudy

31 July, thu

	758 mmHg		77%
	4.9 m/s		+19

31 July, Thursday. day, 20°; night, 15°; clear

1 August, fri

	758 mmHg		76%
	6.3 m/s		+19

1 August, Friday. day, 20°; night, 15°; rain

2 August, sat

	759 mmHg		82%
	6.8 m/s		+18

2 August, Saturday. day, 19°; night, 15°; rain

3 August, sun

	759 mmHg		81%
	6.8 m/s		+18

3 August, Sunday. day, 19°; night, 16°; rain

4 August, mon

	759 mmHg		79%
	5.5 m/s		+18

4 August, Monday. day, 19°; night, 15°; rain

5 August, tue

	760 mmHg		77%
	5.5 m/s		+18

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

6 August, wed

	760 mmHg		77%
	5.3 m/s		+18

6 August, Wednesday. day, 19°; night, 14°; partly cloudy

7 August, thu

	761 mmHg		74%
	5.1 m/s		+19

7 August, Thursday. day, 20°; night, 14°; partly cloudy

8 August, fri

	763 mmHg		74%
	5 m/s		+19

8 August, Friday. day, 19°; night, 14°; overcast

9 August, sat

	762 mmHg		74%
	6 m/s		+19

9 August, Saturday. day, 20°; night, 14°; partly cloudy

10 August, sun

	762 mmHg		79%
	5 m/s		+18

10 August, Sunday. day, 19°; night, 15°; clear

11 August, mon

	760 mmHg		76%
	5.1 m/s		+19

11 August, Monday. day, 19°; night, 15°; partly cloudy

12 August, tue

	759 mmHg		77%
	5.3 m/s		+19

12 August, Tuesday. day, 19°; night, 14°; partly cloudy

13 August, wed

	759 mmHg		76%
	5.1 m/s		+18

13 August, Wednesday. day, 19°; night, 14°; rain

14 August, thu

	761 mmHg		73%
	4.5 m/s		+19

14 August, Thursday. day, 20°; night, 14°; clear

15 August, fri

	761 mmHg		73%
	4.9 m/s		+20

15 August, Friday. day, 20°; night, 14°; partly cloudy

16 August, sat

	758 mmHg		75%
	5.1 m/s		+20

16 August, Saturday. day, 20°; night, 15°; overcast

17 August, sun

	758 mmHg		75%
	5.5 m/s		+19

17 August, Sunday. day, 20°; night, 15°; clear

18 August, mon

	760 mmHg		76%
	5.5 m/s		+19

18 August, Monday. day, 19°; night, 14°; partly cloudy

19 August, tue

	761 mmHg		77%
	5.8 m/s		+20

19 August, Tuesday. day, 20°; night, 15°; partly cloudy

20 August, wed

	762 mmHg		73%
	4.8 m/s		+20

20 August, Wednesday. day, 20°; night, 15°; partly cloudy

21 August, thu

	760 mmHg		75%
	5 m/s		+20

21 August, Thursday. day, 21°; night, 15°; partly cloudy

22 August, fri

	759 mmHg		74%
	5.3 m/s		+19

22 August, Friday. day, 20°; night, 15°; partly cloudy

23 August, sat

	759 mmHg		74%
	4.6 m/s		+18

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

24 August, sun

	756 mmHg		81%
	6.5 m/s		+19

24 August, Sunday. day, 19°; night, 14°; rain

25 August, mon

	756 mmHg		82%
	6 m/s		+18

25 August, Monday. day, 19°; night, 15°; rain

26 August, tue

	760 mmHg		79%
	4.8 m/s		+19

26 August, Tuesday. day, 19°; night, 15°; clear

27 August, wed

	762 mmHg		72%
	5 m/s		+19

27 August, Wednesday. day, 20°; night, 15°; clear

28 August, thu

	762 mmHg		76%
	5 m/s		+19

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

29 August, fri

	762 mmHg		75%
	4 m/s		+19

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

30 August, sat

	761 mmHg		72%
	5 m/s		+19

30 August, Saturday. day, 20°; night, 14°; clear

31 August, sun

	762 mmHg		69%
	5 m/s		+19

31 August, Sunday. day, 19°; night, 14°; clear

1 September, mon

	762 mmHg		72%
	4.5 m/s		+19

1 September, Monday. day, 20°; night, 13°; partly cloudy

2 September, tue

	760 mmHg		74%
	5.3 m/s		+20

2 September, Tuesday. day, 20°; night, 13°; partly cloudy

3 September, wed

	760 mmHg		75%
	4.5 m/s		+19

3 September, Wednesday. day, 19°; night, 15°; partly cloudy

4 September, thu

	761 mmHg		77%
	5.1 m/s		+18

4 September, Thursday. day, 19°; night, 14°; overcast

5 September, fri

	759 mmHg		80%
	6.3 m/s		+18

5 September, Friday. day, 18°; night, 14°; clear

6 September, sat

	760 mmHg		75%
	4.5 m/s		+19

6 September, Saturday. day, 19°; night, 13°; partly cloudy

Average data for 10 years

Châteaulin August

8

sunny days

9

days with precipitation

14

cloudy days

8 sunny days; 9 days with precipitation; 14 cloudy days;

75

%

air humidity

3.9

m/s

WindW

58

mm of precipitation

(7% of annual average)

+19

°C

Water temperature

air humidity 75%; 58 millimeters of precipitation (7% of annual average); Wind westerly 3.9 Meters per second; Water temperature +19°

Weather graphs for August

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

SW

SW

SW

W

SW

W

NW

NW

W

W

W

W

W

NW

SW

SW

W

SW

SW

SW

SW

W

W

SW

SW

W

W

NW

NW

N

NW

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

Brest
Trowbridge
Bournemouth
Looe
La Rochelle
Penzance
Plymouth
Cardiff
Carnac

Cities with similar weather in August

Helsinki
Tallinn
Stockholm
Oslo
San Francisco
Palanga
Copenhagen
Klaipeda
Brisbane

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

In August, the weather in Châteaulin is typically warm. Average daily high temperature in August is about 19 degrees above zero. On average, Châteaulin has 12 partly cloudy, 9 rainy, 8 sunny, and 2 cloudy days in August. The rains are usually heavy.

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