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August weather forecast in Greenwich

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

	752 mmHg		72%
	3.8 m/s		+26

27 July, Sunday. day, 28°; night, 20°; rain

28 July, mon

	752 mmHg		74%
	3.5 m/s		+26

28 July, Monday. day, 28°; night, 20°; rain

29 July, tue

	752 mmHg		73%
	3.6 m/s		+26

29 July, Tuesday. day, 28°; night, 21°; rain

30 July, wed

	752 mmHg		70%
	3.5 m/s		+26

30 July, Wednesday. day, 28°; night, 20°; partly cloudy

31 July, thu

	753 mmHg		71%
	3.4 m/s		+26

31 July, Thursday. day, 27°; night, 19°; clear

1 August, fri

	753 mmHg		72%
	3.3 m/s		+26

1 August, Friday. day, 28°; night, 20°; clear

2 August, sat

	753 mmHg		71%
	3.4 m/s		+26

2 August, Saturday. day, 28°; night, 21°; rain

3 August, sun

	753 mmHg		71%
	3.4 m/s		+27

3 August, Sunday. day, 28°; night, 21°; clear

4 August, mon

	753 mmHg		74%
	3.6 m/s		+26

4 August, Monday. day, 28°; night, 21°; rain

5 August, tue

	753 mmHg		71%
	3.4 m/s		+26

5 August, Tuesday. day, 28°; night, 20°; clear

6 August, wed

	753 mmHg		69%
	3.6 m/s		+26

6 August, Wednesday. day, 27°; night, 20°; partly cloudy

7 August, thu

	753 mmHg		70%
	3.7 m/s		+27

7 August, Thursday. day, 27°; night, 19°; overcast

8 August, fri

	753 mmHg		72%
	3.6 m/s		+27

8 August, Friday. day, 27°; night, 19°; rain

9 August, sat

	753 mmHg		70%
	3.7 m/s		+28

9 August, Saturday. day, 28°; night, 20°; clear

10 August, sun

	752 mmHg		72%
	3.6 m/s		+26

10 August, Sunday. day, 28°; night, 20°; rain

11 August, mon

	752 mmHg		73%
	3.4 m/s		+25

11 August, Monday. day, 27°; night, 20°; rain

12 August, tue

	752 mmHg		73%
	3.4 m/s		+26

12 August, Tuesday. day, 27°; night, 20°; rain

13 August, wed

	752 mmHg		74%
	3.5 m/s		+26

13 August, Wednesday. day, 27°; night, 20°; rain

14 August, thu

	753 mmHg		72%
	3.4 m/s		+25

14 August, Thursday. day, 27°; night, 19°; partly cloudy

15 August, fri

	753 mmHg		74%
	3.5 m/s		+27

15 August, Friday. day, 26°; night, 19°; overcast

16 August, sat

	754 mmHg		75%
	3.2 m/s		+27

16 August, Saturday. day, 27°; night, 19°; overcast

17 August, sun

	753 mmHg		73%
	3.4 m/s		+26

17 August, Sunday. day, 27°; night, 20°; rain

18 August, mon

	752 mmHg		73%
	3.6 m/s		+27

18 August, Monday. day, 27°; night, 20°; rain

19 August, tue

	753 mmHg		71%
	3.5 m/s		+27

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

20 August, wed

	754 mmHg		72%
	3.5 m/s		+27

20 August, Wednesday. day, 26°; night, 19°; clear

21 August, thu

	754 mmHg		73%
	3.6 m/s		+26

21 August, Thursday. day, 26°; night, 19°; rain

22 August, fri

	753 mmHg		74%
	3.7 m/s		+25

22 August, Friday. day, 26°; night, 19°; partly cloudy

23 August, sat

	753 mmHg		72%
	3.6 m/s		+25

23 August, Saturday. day, 26°; night, 18°; rain

24 August, sun

	754 mmHg		71%
	3.7 m/s		+26

24 August, Sunday. day, 26°; night, 18°; clear

25 August, mon

	754 mmHg		72%
	3.5 m/s		+27

25 August, Monday. day, 26°; night, 18°; clear

26 August, tue

	754 mmHg		71%
	3.4 m/s		+26

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

27 August, wed

	754 mmHg		72%
	3.5 m/s		+25

27 August, Wednesday. day, 27°; night, 19°; partly cloudy

28 August, thu

	753 mmHg		76%
	3.6 m/s		+26

28 August, Thursday. day, 26°; night, 19°; overcast

29 August, fri

	753 mmHg		75%
	3.9 m/s		+26

29 August, Friday. day, 26°; night, 19°; clear

30 August, sat

	753 mmHg		73%
	3.6 m/s		+26

30 August, Saturday. day, 26°; night, 18°; clear

31 August, sun

	754 mmHg		70%
	3.8 m/s		+27

31 August, Sunday. day, 26°; night, 19°; partly cloudy

1 September, mon

	755 mmHg		70%
	3.6 m/s		+26

1 September, Monday. day, 25°; night, 18°; rain

2 September, tue

	754 mmHg		72%
	3.7 m/s		+26

2 September, Tuesday. day, 25°; night, 17°; rain

3 September, wed

	754 mmHg		73%
	3.6 m/s		+25

3 September, Wednesday. day, 26°; night, 18°; overcast

4 September, thu

	753 mmHg		72%
	3.6 m/s		+25

4 September, Thursday. day, 26°; night, 18°; clear

5 September, fri

	755 mmHg		70%
	3.8 m/s		+24

5 September, Friday. day, 25°; night, 18°; clear

6 September, sat

	755 mmHg		73%
	3.8 m/s		+24

6 September, Saturday. day, 25°; night, 17°; clear

Average data for 10 years

Greenwich August

11

sunny days

11

days with precipitation

7

cloudy days

11 sunny days; 11 days with precipitation; 7 cloudy days;

72

%

air humidity

2.4

m/s

WindSW

99

mm of precipitation

(9% of annual average)

+26

°C

Water temperature

air humidity 72%; 99 millimeters of precipitation (9% of annual average); Wind south-westerly 2.4 Meters per second; Water temperature +26°

Weather graphs for August

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

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

S

S

SW

S

S

SW

SW

SW

SW

S

SW

SW

SW

SW

SW

S

S

S

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

New York
Boston
Islandia
Philadelphia
Colchester
Brooklyn
Jamaica
Lake George
Atlantic City

Cities with similar weather in August

Gagra
Suhum
Istanbul
Batumi
Pitsunda
Heraklion
Nice
The Sunny Beach
Zanzibar

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

In August, the weather in Greenwich is typically warm. Average daily high temperature in August is about 27 degrees above zero. On average, Greenwich has 11 rainy, 11 sunny, 5 partly cloudy, and 4 cloudy days in August. The rains are usually heavy.

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