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August 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 July, sun

	762 mmHg		79%
	7.5 m/s		+29

27 July, Sunday. day, 29°; night, 27°; rain

28 July, mon

	762 mmHg		79%
	7.3 m/s		+29

28 July, Monday. day, 28°; night, 27°; rain

29 July, tue

	762 mmHg		80%
	7.1 m/s		+29

29 July, Tuesday. day, 28°; night, 27°; rain

30 July, wed

	762 mmHg		80%
	7 m/s		+29

30 July, Wednesday. day, 29°; night, 27°; partly cloudy

31 July, thu

	762 mmHg		79%
	7.4 m/s		+29

31 July, Thursday. day, 29°; night, 27°; partly cloudy

1 August, fri

	762 mmHg		80%
	7.3 m/s		+29

1 August, Friday. day, 29°; night, 27°; rain

2 August, sat

	762 mmHg		80%
	7 m/s		+29

2 August, Saturday. day, 29°; night, 27°; clear

3 August, sun

	762 mmHg		80%
	6.8 m/s		+29

3 August, Sunday. day, 29°; night, 27°; rain

4 August, mon

	762 mmHg		79%
	6.9 m/s		+29

4 August, Monday. day, 29°; night, 27°; partly cloudy

5 August, tue

	762 mmHg		79%
	7.2 m/s		+29

5 August, Tuesday. day, 29°; night, 27°; clear

6 August, wed

	762 mmHg		79%
	7.2 m/s		+29

6 August, Wednesday. day, 29°; night, 28°; clear

7 August, thu

	762 mmHg		79%
	7.1 m/s		+30

7 August, Thursday. day, 29°; night, 28°; clear

8 August, fri

	762 mmHg		79%
	6.9 m/s		+30

8 August, Friday. day, 29°; night, 27°; clear

9 August, sat

	762 mmHg		80%
	6.8 m/s		+30

9 August, Saturday. day, 29°; night, 27°; rain

10 August, sun

	762 mmHg		78%
	6.7 m/s		+30

10 August, Sunday. day, 29°; night, 28°; clear

11 August, mon

	762 mmHg		79%
	6.6 m/s		+30

11 August, Monday. day, 29°; night, 28°; clear

12 August, tue

	762 mmHg		79%
	6.8 m/s		+30

12 August, Tuesday. day, 29°; night, 27°; clear

13 August, wed

	762 mmHg		79%
	6.8 m/s		+30

13 August, Wednesday. day, 29°; night, 27°; clear

14 August, thu

	762 mmHg		80%
	6.9 m/s		+30

14 August, Thursday. day, 29°; night, 28°; clear

15 August, fri

	762 mmHg		79%
	6.7 m/s		+30

15 August, Friday. day, 29°; night, 27°; partly cloudy

16 August, sat

	762 mmHg		79%
	6.9 m/s		+30

16 August, Saturday. day, 29°; night, 27°; rain

17 August, sun

	762 mmHg		79%
	7.6 m/s		+30

17 August, Sunday. day, 29°; night, 27°; rain

18 August, mon

	762 mmHg		80%
	7.6 m/s		+30

18 August, Monday. day, 29°; night, 27°; rain

19 August, tue

	761 mmHg		80%
	7.4 m/s		+30

19 August, Tuesday. day, 29°; night, 27°; rain

20 August, wed

	761 mmHg		80%
	7.2 m/s		+30

20 August, Wednesday. day, 29°; night, 27°; rain

21 August, thu

	762 mmHg		81%
	7.4 m/s		+30

21 August, Thursday. day, 29°; night, 27°; rain

22 August, fri

	761 mmHg		80%
	7 m/s		+30

22 August, Friday. day, 29°; night, 27°; clear

23 August, sat

	761 mmHg		80%
	6.8 m/s		+30

23 August, Saturday. day, 29°; night, 27°; rain

24 August, sun

	760 mmHg		80%
	7.3 m/s		+30

24 August, Sunday. day, 29°; night, 27°; rain

25 August, mon

	760 mmHg		80%
	7.1 m/s		+30

25 August, Monday. day, 29°; night, 27°; rain

26 August, tue

	760 mmHg		80%
	7.1 m/s		+30

26 August, Tuesday. day, 29°; night, 27°; rain

27 August, wed

	760 mmHg		80%
	6.8 m/s		+30

27 August, Wednesday. day, 29°; night, 27°; rain

28 August, thu

	760 mmHg		81%
	7 m/s		+30

28 August, Thursday. day, 29°; night, 27°; rain

29 August, fri

	760 mmHg		82%
	6.9 m/s		+30

29 August, Friday. day, 28°; night, 27°; rain

30 August, sat

	761 mmHg		81%
	6.9 m/s		+30

30 August, Saturday. day, 29°; night, 27°; rain

31 August, sun

	761 mmHg		80%
	6.6 m/s		+30

31 August, Sunday. day, 29°; night, 27°; rain

1 September, mon

	761 mmHg		80%
	6.4 m/s		+30

1 September, Monday. day, 29°; night, 27°; clear

2 September, tue

	760 mmHg		80%
	6.7 m/s		+30

2 September, Tuesday. day, 29°; night, 27°; clear

3 September, wed

	760 mmHg		80%
	6.5 m/s		+30

3 September, Wednesday. day, 29°; night, 27°; clear

4 September, thu

	760 mmHg		80%
	6.4 m/s		+30

4 September, Thursday. day, 29°; night, 27°; rain

5 September, fri

	761 mmHg		79%
	6.1 m/s		+30

5 September, Friday. day, 29°; night, 27°; clear

6 September, sat

	761 mmHg		81%
	6 m/s		+30

6 September, Saturday. day, 28°; night, 27°; rain

Average data for 10 years

Cayo Guillermo August

11

sunny days

18

days with precipitation

6

cloudy days

11 sunny days; 18 days with precipitation; 6 cloudy days;

80

%

air humidity

5.6

m/s

WindE

97

mm of precipitation

(11% of annual average)

+30

°C

Water temperature

air humidity 80%; 97 millimeters of precipitation (11% of annual average); Wind easterly 5.6 Meters per second; Water temperature +30°

Weather graphs for August

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

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

SE

E

SE

SE

SE

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

25

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 August

Pattaya
Nha Trang
Marmaris
Bangkok
Punta Cana
Samui
Havana
Singapore
Avsallar

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

August in Cayo Guillermo is the hottest month of the year. In August, the weather in Cayo Guillermo is typically hot. Average daily high temperature in August is about 29 degrees above zero. On average, Cayo Guillermo has 18 rainy, 11 sunny, and 2 partly cloudy days in August. The rains are usually heavy. August as well as June, July, September, and October is considered the most uncomfortable time to visit Cayo Guillermo.

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