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August weather forecast in Barnstable

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

	759 mmHg		79%
	6.1 m/s		+21

27 July, Sunday. day, 24°; night, 20°; clear

28 July, mon

	759 mmHg		83%
	6.1 m/s		+21

28 July, Monday. day, 24°; night, 21°; rain

29 July, tue

	758 mmHg		80%
	6.1 m/s		+21

29 July, Tuesday. day, 25°; night, 21°; partly cloudy

30 July, wed

	759 mmHg		78%
	5.8 m/s		+21

30 July, Wednesday. day, 25°; night, 21°; clear

31 July, thu

	760 mmHg		79%
	5.3 m/s		+21

31 July, Thursday. day, 24°; night, 20°; clear

1 August, fri

	760 mmHg		80%
	5.7 m/s		+21

1 August, Friday. day, 25°; night, 20°; rain

2 August, sat

	760 mmHg		79%
	5.8 m/s		+22

2 August, Saturday. day, 25°; night, 21°; clear

3 August, sun

	760 mmHg		81%
	5.8 m/s		+22

3 August, Sunday. day, 25°; night, 21°; clear

4 August, mon

	760 mmHg		84%
	6 m/s		+22

4 August, Monday. day, 24°; night, 21°; partly cloudy

5 August, tue

	759 mmHg		83%
	5.9 m/s		+21

5 August, Tuesday. day, 24°; night, 21°; partly cloudy

6 August, wed

	760 mmHg		79%
	5.8 m/s		+21

6 August, Wednesday. day, 24°; night, 20°; rain

7 August, thu

	760 mmHg		78%
	6.2 m/s		+21

7 August, Thursday. day, 24°; night, 20°; overcast

8 August, fri

	759 mmHg		80%
	6.1 m/s		+21

8 August, Friday. day, 24°; night, 20°; rain

9 August, sat

	760 mmHg		79%
	6.2 m/s		+21

9 August, Saturday. day, 25°; night, 20°; clear

10 August, sun

	759 mmHg		80%
	6.2 m/s		+21

10 August, Sunday. day, 25°; night, 21°; rain

11 August, mon

	759 mmHg		81%
	5.9 m/s		+21

11 August, Monday. day, 24°; night, 20°; rain

12 August, tue

	759 mmHg		83%
	5.6 m/s		+21

12 August, Tuesday. day, 23°; night, 20°; overcast

13 August, wed

	759 mmHg		83%
	5.7 m/s		+21

13 August, Wednesday. day, 24°; night, 20°; rain

14 August, thu

	759 mmHg		81%
	5.7 m/s		+22

14 August, Thursday. day, 24°; night, 20°; rain

15 August, fri

	760 mmHg		82%
	5.6 m/s		+22

15 August, Friday. day, 23°; night, 20°; rain

16 August, sat

	761 mmHg		83%
	5.6 m/s		+22

16 August, Saturday. day, 23°; night, 20°; overcast

17 August, sun

	760 mmHg		82%
	5.6 m/s		+22

17 August, Sunday. day, 24°; night, 20°; partly cloudy

18 August, mon

	759 mmHg		81%
	6 m/s		+22

18 August, Monday. day, 24°; night, 20°; overcast

19 August, tue

	759 mmHg		79%
	6 m/s		+22

19 August, Tuesday. day, 23°; night, 20°; rain

20 August, wed

	761 mmHg		79%
	5.4 m/s		+22

20 August, Wednesday. day, 23°; night, 20°; clear

21 August, thu

	761 mmHg		81%
	5.8 m/s		+22

21 August, Thursday. day, 23°; night, 19°; partly cloudy

22 August, fri

	760 mmHg		81%
	6.2 m/s		+22

22 August, Friday. day, 23°; night, 20°; overcast

23 August, sat

	760 mmHg		79%
	6.1 m/s		+22

23 August, Saturday. day, 23°; night, 20°; clear

24 August, sun

	761 mmHg		78%
	6 m/s		+21

24 August, Sunday. day, 23°; night, 19°; clear

25 August, mon

	761 mmHg		80%
	5.6 m/s		+21

25 August, Monday. day, 23°; night, 19°; clear

26 August, tue

	761 mmHg		78%
	5.7 m/s		+21

26 August, Tuesday. day, 23°; night, 19°; clear

27 August, wed

	761 mmHg		80%
	5.5 m/s		+21

27 August, Wednesday. day, 23°; night, 19°; clear

28 August, thu

	761 mmHg		81%
	5.8 m/s		+21

28 August, Thursday. day, 23°; night, 19°; partly cloudy

29 August, fri

	760 mmHg		81%
	6.3 m/s		+21

29 August, Friday. day, 23°; night, 19°; partly cloudy

30 August, sat

	760 mmHg		81%
	6.1 m/s		+21

30 August, Saturday. day, 23°; night, 19°; clear

31 August, sun

	761 mmHg		79%
	6.2 m/s		+21

31 August, Sunday. day, 23°; night, 19°; partly cloudy

1 September, mon

	761 mmHg		76%
	5.9 m/s		+21

1 September, Monday. day, 22°; night, 19°; partly cloudy

2 September, tue

	761 mmHg		79%
	6.3 m/s		+21

2 September, Tuesday. day, 21°; night, 18°; rain

3 September, wed

	760 mmHg		80%
	6.1 m/s		+21

3 September, Wednesday. day, 22°; night, 18°; partly cloudy

4 September, thu

	760 mmHg		81%
	5.7 m/s		+20

4 September, Thursday. day, 22°; night, 18°; clear

5 September, fri

	762 mmHg		78%
	6.2 m/s		+20

5 September, Friday. day, 22°; night, 18°; clear

6 September, sat

	762 mmHg		79%
	6.3 m/s		+20

6 September, Saturday. day, 21°; night, 18°; rain

Average data for 10 years

Barnstable August

10

sunny days

9

days with precipitation

7

cloudy days

10 sunny days; 9 days with precipitation; 7 cloudy days;

81

%

air humidity

4

m/s

WindS

78

mm of precipitation

(7% of annual average)

+21

°C

Water temperature

air humidity 81%; 78 millimeters of precipitation (7% of annual average); Wind southerly 4 Meters per second; Water temperature +21°

Weather graphs for August

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

S

S

S

S

S

S

S

S

SW

SW

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

SW

S

SE

S

S

S

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

New York
Boston
Islandia
Jamaica
Brookhaven
Lake George
Portland
Berlin
Albany

Cities with similar weather in August

Lisbon
Toronto
Porto
Genoa
Santa Cruz de Tenerife
Funchal
Seattle
Las Palmas de Gran Canaria
Playa de las Americas

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

In August, the weather in Barnstable is typically warm. Average daily high temperature in August is about 24 degrees above zero. On average, Barnstable has 10 sunny, 9 rainy, 7 partly cloudy, and 5 cloudy days in August. The rains are usually heavy.

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