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May weather forecast in Block Island

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 April, sun

	761 mmHg		79%
	7.2 m/s		+8

27 April, Sunday. day, 10°; night, 8°; rain

28 April, mon

	762 mmHg		76%
	7.6 m/s		+9

28 April, Monday. day, 11°; night, 8°; partly cloudy

29 April, tue

	762 mmHg		75%
	7.6 m/s		+9

29 April, Tuesday. day, 11°; night, 8°; rain

30 April, wed

	763 mmHg		74%
	7.5 m/s		+9

30 April, Wednesday. day, 11°; night, 8°; clear

1 May, thu

	762 mmHg		78%
	7.8 m/s		+9

1 May, Thursday. day, 11°; night, 8°; rain

2 May, fri

	761 mmHg		81%
	7.8 m/s		+9

2 May, Friday. day, 12°; night, 9°; rain

3 May, sat

	761 mmHg		81%
	7.6 m/s		+10

3 May, Saturday. day, 12°; night, 9°; rain

4 May, sun

	762 mmHg		81%
	7.2 m/s		+10

4 May, Sunday. day, 12°; night, 9°; rain

5 May, mon

	763 mmHg		79%
	7 m/s		+10

5 May, Monday. day, 12°; night, 9°; partly cloudy

6 May, tue

	762 mmHg		82%
	6.8 m/s		+10

6 May, Tuesday. day, 12°; night, 9°; rain

7 May, wed

	762 mmHg		78%
	7.1 m/s		+10

7 May, Wednesday. day, 12°; night, 9°; clear

8 May, thu

	762 mmHg		78%
	7.6 m/s		+10

8 May, Thursday. day, 12°; night, 10°; rain

9 May, fri

	762 mmHg		80%
	7.3 m/s		+10

9 May, Friday. day, 12°; night, 10°; rain

10 May, sat

	761 mmHg		80%
	7.9 m/s		+10

10 May, Saturday. day, 13°; night, 10°; rain

11 May, sun

	761 mmHg		78%
	7.5 m/s		+10

11 May, Sunday. day, 13°; night, 10°; clear

12 May, mon

	761 mmHg		79%
	7.4 m/s		+10

12 May, Monday. day, 13°; night, 10°; partly cloudy

13 May, tue

	762 mmHg		77%
	7.6 m/s		+11

13 May, Tuesday. day, 12°; night, 10°; partly cloudy

14 May, wed

	763 mmHg		77%
	7 m/s		+11

14 May, Wednesday. day, 13°; night, 9°; clear

15 May, thu

	762 mmHg		80%
	7.3 m/s		+11

15 May, Thursday. day, 14°; night, 10°; rain

16 May, fri

	761 mmHg		82%
	7.9 m/s		+11

16 May, Friday. day, 14°; night, 11°; rain

17 May, sat

	762 mmHg		80%
	7.5 m/s		+12

17 May, Saturday. day, 14°; night, 11°; overcast

18 May, sun

	763 mmHg		80%
	7.2 m/s		+12

18 May, Sunday. day, 14°; night, 11°; partly cloudy

19 May, mon

	762 mmHg		81%
	7.1 m/s		+12

19 May, Monday. day, 14°; night, 11°; rain

20 May, tue

	762 mmHg		80%
	6.7 m/s		+12

20 May, Tuesday. day, 14°; night, 11°; partly cloudy

21 May, wed

	762 mmHg		80%
	6.4 m/s		+12

21 May, Wednesday. day, 14°; night, 11°; clear

22 May, thu

	762 mmHg		81%
	6.7 m/s		+12

22 May, Thursday. day, 14°; night, 12°; clear

23 May, fri

	762 mmHg		81%
	6.7 m/s		+13

23 May, Friday. day, 15°; night, 12°; partly cloudy

24 May, sat

	762 mmHg		83%
	7.4 m/s		+13

24 May, Saturday. day, 15°; night, 12°; rain

25 May, sun

	762 mmHg		82%
	7.3 m/s		+13

25 May, Sunday. day, 15°; night, 12°; clear

26 May, mon

	762 mmHg		82%
	7.4 m/s		+13

26 May, Monday. day, 16°; night, 12°; overcast

27 May, tue

	762 mmHg		84%
	6.7 m/s		+13

27 May, Tuesday. day, 16°; night, 13°; overcast

28 May, wed

	762 mmHg		85%
	6.6 m/s		+13

28 May, Wednesday. day, 15°; night, 13°; overcast

29 May, thu

	762 mmHg		84%
	7.1 m/s		+14

29 May, Thursday. day, 16°; night, 13°; clear

30 May, fri

	762 mmHg		84%
	6.9 m/s		+14

30 May, Friday. day, 16°; night, 13°; clear

31 May, sat

	762 mmHg		82%
	6.4 m/s		+14

31 May, Saturday. day, 17°; night, 14°; clear

Average data for 10 years

Block Island May

9

sunny days

12

days with precipitation

10

cloudy days

9 sunny days; 12 days with precipitation; 10 cloudy days;

81

%

air humidity

5.1

m/s

WindS

100

mm of precipitation

(8% of annual average)

+11

°C

Water temperature

air humidity 81%; 100 millimeters of precipitation (8% of annual average); Wind southerly 5.1 Meters per second; Water temperature +11°

Weather graphs for May

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

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S

S

S

S

S

S

S

S

S

S

S

S

S

SW

S

S

S

S

S

SW

S

S

S

S

S

S

S

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
Philadelphia
Islandia
Colchester
Jamaica
Brooklyn
Brookhaven
Lake George

Cities with similar weather in May

Riga
Yurmala
Copenhagen
Vancouver
Gdansk
Montreal
Bruges
Narva
Narva-Joesuu

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

May in Block Island is the rainiest month of the year. In May, the weather in Block Island is typically warm. Average daily high temperature in May is about 14 degrees above zero. On average, Block Island has 12 rainy, 9 sunny, 6 partly cloudy, and 4 cloudy days in May. The rains are usually heavy. May as well as January, February, March, and April is considered the most uncomfortable time to visit Block Island.

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