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August weather forecast in Caernarfon

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		81%
	5.4 m/s		+15

27 July, Sunday. day, 19°; night, 13°; partly cloudy

28 July, mon

	760 mmHg		82%
	6.5 m/s		+15

28 July, Monday. day, 18°; night, 13°; rain

29 July, tue

	760 mmHg		82%
	6.2 m/s		+15

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

30 July, wed

	760 mmHg		82%
	6.6 m/s		+15

30 July, Wednesday. day, 18°; night, 13°; rain

31 July, thu

	760 mmHg		82%
	6.8 m/s		+15

31 July, Thursday. day, 18°; night, 14°; rain

1 August, fri

	760 mmHg		82%
	6 m/s		+15

1 August, Friday. day, 19°; night, 13°; rain

2 August, sat

	759 mmHg		83%
	6.5 m/s		+15

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

3 August, sun

	760 mmHg		82%
	6.7 m/s		+15

3 August, Sunday. day, 18°; night, 13°; partly cloudy

4 August, mon

	761 mmHg		81%
	6.5 m/s		+15

4 August, Monday. day, 19°; night, 13°; rain

5 August, tue

	761 mmHg		81%
	6.3 m/s		+15

5 August, Tuesday. day, 19°; night, 14°; rain

6 August, wed

	761 mmHg		84%
	6.1 m/s		+15

6 August, Wednesday. day, 18°; night, 13°; rain

7 August, thu

	761 mmHg		82%
	5.5 m/s		+15

7 August, Thursday. day, 18°; night, 13°; partly cloudy

8 August, fri

	762 mmHg		80%
	5.6 m/s		+15

8 August, Friday. day, 19°; night, 12°; clear

9 August, sat

	761 mmHg		80%
	6.3 m/s		+15

9 August, Saturday. day, 19°; night, 13°; rain

10 August, sun

	761 mmHg		80%
	6.2 m/s		+15

10 August, Sunday. day, 19°; night, 13°; partly cloudy

11 August, mon

	761 mmHg		81%
	6.7 m/s		+15

11 August, Monday. day, 19°; night, 13°; rain

12 August, tue

	760 mmHg		81%
	6.7 m/s		+15

12 August, Tuesday. day, 19°; night, 14°; clear

13 August, wed

	760 mmHg		83%
	6.4 m/s		+15

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

14 August, thu

	760 mmHg		83%
	6.3 m/s		+15

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

15 August, fri

	760 mmHg		83%
	6.5 m/s		+15

15 August, Friday. day, 18°; night, 13°; rain

16 August, sat

	760 mmHg		82%
	6.5 m/s		+15

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

17 August, sun

	759 mmHg		81%
	6.6 m/s		+15

17 August, Sunday. day, 19°; night, 13°; rain

18 August, mon

	758 mmHg		82%
	6.5 m/s		+15

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

19 August, tue

	758 mmHg		83%
	7.5 m/s		+15

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

20 August, wed

	760 mmHg		83%
	7.2 m/s		+15

20 August, Wednesday. day, 18°; night, 13°; rain

21 August, thu

	761 mmHg		83%
	7.5 m/s		+15

21 August, Thursday. day, 18°; night, 13°; overcast

22 August, fri

	762 mmHg		83%
	6.4 m/s		+15

22 August, Friday. day, 18°; night, 13°; rain

23 August, sat

	760 mmHg		85%
	6.3 m/s		+15

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

24 August, sun

	760 mmHg		81%
	6.2 m/s		+15

24 August, Sunday. day, 18°; night, 13°; partly cloudy

25 August, mon

	759 mmHg		82%
	6.6 m/s		+15

25 August, Monday. day, 17°; night, 13°; rain

26 August, tue

	760 mmHg		83%
	6.8 m/s		+15

26 August, Tuesday. day, 18°; night, 13°; partly cloudy

27 August, wed

	761 mmHg		81%
	6.7 m/s		+15

27 August, Wednesday. day, 17°; night, 12°; rain

28 August, thu

	762 mmHg		81%
	6.7 m/s		+16

28 August, Thursday. day, 17°; night, 12°; partly cloudy

29 August, fri

	763 mmHg		81%
	6.9 m/s		+16

29 August, Friday. day, 17°; night, 12°; partly cloudy

30 August, sat

	764 mmHg		80%
	6.1 m/s		+16

30 August, Saturday. day, 17°; night, 12°; partly cloudy

31 August, sun

	764 mmHg		80%
	6.2 m/s		+16

31 August, Sunday. day, 17°; night, 12°; partly cloudy

1 September, mon

	764 mmHg		81%
	5.8 m/s		+16

1 September, Monday. day, 17°; night, 12°; partly cloudy

2 September, tue

	763 mmHg		84%
	6.2 m/s		+15

2 September, Tuesday. day, 18°; night, 13°; rain

3 September, wed

	762 mmHg		83%
	6.5 m/s		+15

3 September, Wednesday. day, 18°; night, 13°; rain

4 September, thu

	763 mmHg		81%
	5.8 m/s		+15

4 September, Thursday. day, 18°; night, 12°; clear

5 September, fri

	762 mmHg		82%
	6.3 m/s		+15

5 September, Friday. day, 18°; night, 13°; rain

6 September, sat

	761 mmHg		82%
	7 m/s		+15

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

Average data for 10 years

Caernarfon August

2

sunny days

16

days with precipitation

11

cloudy days

2 sunny days; 16 days with precipitation; 11 cloudy days;

82

%

air humidity

4.69

m/s

WindSW

81

mm of precipitation

(8% of annual average)

+15

°C

Water temperature

air humidity 82%; 81 millimeters of precipitation (8% of annual average); Wind south-westerly 4.69 Meters per second; Water temperature +15°

Weather graphs for August

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

SW

S

SW

S

S

SW

SW

S

SW

SW

S

SW

SW

SW

SW

SW

S

SW

SW

SW

SW

SW

S

SW

S

SW

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
Trowbridge
Oxford
Glasgow
Bournemouth
Wicklow

Cities with similar weather in August

Tallinn
Stockholm
Cholpon-Ata
Sydney
Oslo
San Francisco
Palanga
Buenos Aires
Auckland

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

In August, the weather in Caernarfon is typically warm. Average daily high temperature in August is about 18 degrees above zero. On average, Caernarfon has 16 rainy, 9 partly cloudy, 4 cloudy, and 2 sunny days in August. The rains are usually heavy.

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