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May weather forecast in Cayo Guillermo

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

	762 mmHg		80%
	7.7 m/s		+26

27 April, Sunday. day, 26°; night, 25°; rain

28 April, mon

	762 mmHg		80%
	8 m/s		+27

28 April, Monday. day, 26°; night, 25°; rain

29 April, tue

	762 mmHg		80%
	8 m/s		+27

29 April, Tuesday. day, 26°; night, 25°; rain

30 April, wed

	761 mmHg		79%
	8.2 m/s		+27

30 April, Wednesday. day, 26°; night, 25°; rain

1 May, thu

	761 mmHg		80%
	7.9 m/s		+27

1 May, Thursday. day, 26°; night, 24°; rain

2 May, fri

	761 mmHg		79%
	7.8 m/s		+27

2 May, Friday. day, 26°; night, 25°; clear

3 May, sat

	762 mmHg		79%
	7.6 m/s		+27

3 May, Saturday. day, 26°; night, 25°; clear

4 May, sun

	762 mmHg		79%
	7.6 m/s		+27

4 May, Sunday. day, 26°; night, 25°; clear

5 May, mon

	762 mmHg		78%
	7.5 m/s		+27

5 May, Monday. day, 26°; night, 25°; clear

6 May, tue

	762 mmHg		77%
	7.4 m/s		+27

6 May, Tuesday. day, 26°; night, 25°; clear

7 May, wed

	762 mmHg		77%
	7.9 m/s		+27

7 May, Wednesday. day, 26°; night, 25°; clear

8 May, thu

	762 mmHg		76%
	8 m/s		+27

8 May, Thursday. day, 26°; night, 25°; clear

9 May, fri

	762 mmHg		76%
	7.5 m/s		+27

9 May, Friday. day, 26°; night, 25°; clear

10 May, sat

	762 mmHg		76%
	7.3 m/s		+27

10 May, Saturday. day, 26°; night, 25°; clear

11 May, sun

	762 mmHg		77%
	7.5 m/s		+27

11 May, Sunday. day, 26°; night, 25°; clear

12 May, mon

	762 mmHg		78%
	7.5 m/s		+27

12 May, Monday. day, 26°; night, 25°; clear

13 May, tue

	762 mmHg		78%
	7.4 m/s		+27

13 May, Tuesday. day, 26°; night, 25°; clear

14 May, wed

	762 mmHg		78%
	7.6 m/s		+27

14 May, Wednesday. day, 26°; night, 25°; rain

15 May, thu

	762 mmHg		80%
	7.6 m/s		+27

15 May, Thursday. day, 26°; night, 25°; rain

16 May, fri

	761 mmHg		80%
	7.4 m/s		+27

16 May, Friday. day, 26°; night, 25°; rain

17 May, sat

	761 mmHg		80%
	7.3 m/s		+27

17 May, Saturday. day, 27°; night, 25°; rain

18 May, sun

	761 mmHg		80%
	7.1 m/s		+27

18 May, Sunday. day, 26°; night, 25°; partly cloudy

19 May, mon

	761 mmHg		80%
	7.2 m/s		+27

19 May, Monday. day, 27°; night, 25°; rain

20 May, tue

	761 mmHg		80%
	7.3 m/s		+27

20 May, Tuesday. day, 27°; night, 25°; rain

21 May, wed

	761 mmHg		80%
	7.5 m/s		+27

21 May, Wednesday. day, 27°; night, 25°; rain

22 May, thu

	761 mmHg		80%
	7.2 m/s		+28

22 May, Thursday. day, 27°; night, 25°; rain

23 May, fri

	761 mmHg		80%
	7.3 m/s		+28

23 May, Friday. day, 27°; night, 25°; rain

24 May, sat

	761 mmHg		81%
	7.2 m/s		+28

24 May, Saturday. day, 27°; night, 25°; rain

25 May, sun

	761 mmHg		82%
	7.5 m/s		+28

25 May, Sunday. day, 27°; night, 25°; rain

26 May, mon

	761 mmHg		80%
	7.2 m/s		+28

26 May, Monday. day, 27°; night, 25°; clear

27 May, tue

	761 mmHg		81%
	7 m/s		+28

27 May, Tuesday. day, 27°; night, 26°; clear

28 May, wed

	761 mmHg		80%
	6.8 m/s		+28

28 May, Wednesday. day, 27°; night, 26°; partly cloudy

29 May, thu

	761 mmHg		81%
	6.5 m/s		+28

29 May, Thursday. day, 27°; night, 26°; clear

30 May, fri

	761 mmHg		81%
	6.5 m/s		+28

30 May, Friday. day, 27°; night, 26°; rain

31 May, sat

	761 mmHg		82%
	6.9 m/s		+28

31 May, Saturday. day, 27°; night, 26°; rain

Average data for 10 years

Cayo Guillermo May

15

sunny days

14

days with precipitation

4

cloudy days

15 sunny days; 14 days with precipitation; 4 cloudy days;

79

%

air humidity

5.8

m/s

WindE

94

mm of precipitation

(11% of annual average)

+27

°C

Water temperature

air humidity 79%; 94 millimeters of precipitation (11% of annual average); Wind easterly 5.8 Meters per second; Water temperature +27°

Weather graphs for May

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

SE

E

E

E

E

E

E

E

E

E

E

E

SE

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

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

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26

27

28

29

30

31

Daytime temperature

Night-time temperature

Cities near you

Varadero
Havana
Miami
Cayo Coco
Nassau
Camagüey
Miami Beach
Sunrise
Key West

Cities with similar weather in May

Santo Domingo
Miami
Havana
Zanzibar
Miami Beach
Puerto Plata
Bali
New Orleans
Kingston

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

In May, the weather in Cayo Guillermo is typically warm. Average daily high temperature in May is about 26 degrees above zero. On average, Cayo Guillermo has 15 sunny, 14 rainy, and 2 partly cloudy days in May. The rains are usually heavy.

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