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August weather forecast in Cayenne

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		85%
	3.7 m/s		+29

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

28 July, mon

	759 mmHg		85%
	3.7 m/s		+29

28 July, Monday. day, 29°; night, 23°; clear

29 July, tue

	759 mmHg		85%
	3.5 m/s		+29

29 July, Tuesday. day, 29°; night, 23°; clear

30 July, wed

	759 mmHg		85%
	3.6 m/s		+29

30 July, Wednesday. day, 29°; night, 23°; rain

31 July, thu

	759 mmHg		86%
	3.7 m/s		+29

31 July, Thursday. day, 29°; night, 23°; rain

1 August, fri

	759 mmHg		85%
	3.4 m/s		+29

1 August, Friday. day, 29°; night, 23°; rain

2 August, sat

	759 mmHg		85%
	3.6 m/s		+29

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

3 August, sun

	759 mmHg		84%
	3.7 m/s		+29

3 August, Sunday. day, 30°; night, 24°; rain

4 August, mon

	758 mmHg		84%
	3.8 m/s		+29

4 August, Monday. day, 30°; night, 24°; rain

5 August, tue

	758 mmHg		84%
	3.7 m/s		+28

5 August, Tuesday. day, 30°; night, 24°; rain

6 August, wed

	758 mmHg		84%
	3.7 m/s		+29

6 August, Wednesday. day, 30°; night, 24°; rain

7 August, thu

	758 mmHg		83%
	3.7 m/s		+29

7 August, Thursday. day, 30°; night, 24°; rain

8 August, fri

	758 mmHg		84%
	4 m/s		+29

8 August, Friday. day, 29°; night, 24°; rain

9 August, sat

	759 mmHg		83%
	3.8 m/s		+28

9 August, Saturday. day, 30°; night, 24°; partly cloudy

10 August, sun

	759 mmHg		83%
	3.7 m/s		+29

10 August, Sunday. day, 30°; night, 24°; rain

11 August, mon

	759 mmHg		83%
	3.6 m/s		+29

11 August, Monday. day, 30°; night, 24°; rain

12 August, tue

	758 mmHg		83%
	3.7 m/s		+29

12 August, Tuesday. day, 30°; night, 24°; rain

13 August, wed

	758 mmHg		83%
	3.8 m/s		+29

13 August, Wednesday. day, 30°; night, 24°; clear

14 August, thu

	758 mmHg		83%
	3.9 m/s		+29

14 August, Thursday. day, 30°; night, 24°; rain

15 August, fri

	758 mmHg		83%
	3.8 m/s		+29

15 August, Friday. day, 30°; night, 24°; rain

16 August, sat

	758 mmHg		83%
	3.8 m/s		+29

16 August, Saturday. day, 30°; night, 24°; rain

17 August, sun

	758 mmHg		83%
	3.8 m/s		+29

17 August, Sunday. day, 30°; night, 24°; rain

18 August, mon

	758 mmHg		83%
	3.8 m/s		+29

18 August, Monday. day, 30°; night, 24°; rain

19 August, tue

	758 mmHg		82%
	3.8 m/s		+28

19 August, Tuesday. day, 30°; night, 24°; partly cloudy

20 August, wed

	758 mmHg		82%
	3.8 m/s		+28

20 August, Wednesday. day, 30°; night, 24°; rain

21 August, thu

	758 mmHg		82%
	3.8 m/s		+29

21 August, Thursday. day, 30°; night, 24°; rain

22 August, fri

	758 mmHg		82%
	3.6 m/s		+28

22 August, Friday. day, 30°; night, 24°; partly cloudy

23 August, sat

	758 mmHg		82%
	3.8 m/s		+28

23 August, Saturday. day, 30°; night, 24°; rain

24 August, sun

	758 mmHg		82%
	4.1 m/s		+28

24 August, Sunday. day, 30°; night, 24°; clear

25 August, mon

	758 mmHg		81%
	4.1 m/s		+28

25 August, Monday. day, 30°; night, 24°; clear

26 August, tue

	758 mmHg		81%
	4 m/s		+28

26 August, Tuesday. day, 30°; night, 24°; clear

27 August, wed

	758 mmHg		81%
	4.1 m/s		+29

27 August, Wednesday. day, 30°; night, 24°; clear

28 August, thu

	758 mmHg		82%
	3.8 m/s		+29

28 August, Thursday. day, 30°; night, 24°; clear

29 August, fri

	758 mmHg		81%
	4 m/s		+29

29 August, Friday. day, 31°; night, 24°; clear

30 August, sat

	758 mmHg		81%
	4.1 m/s		+29

30 August, Saturday. day, 31°; night, 24°; clear

31 August, sun

	758 mmHg		80%
	4.1 m/s		+29

31 August, Sunday. day, 31°; night, 24°; clear

1 September, mon

	758 mmHg		80%
	4.1 m/s		+29

1 September, Monday. day, 30°; night, 24°; clear

2 September, tue

	758 mmHg		80%
	4.1 m/s		+29

2 September, Tuesday. day, 30°; night, 24°; clear

3 September, wed

	758 mmHg		81%
	3.9 m/s		+29

3 September, Wednesday. day, 31°; night, 24°; rain

4 September, thu

	758 mmHg		81%
	4.1 m/s		+29

4 September, Thursday. day, 31°; night, 24°; rain

5 September, fri

	758 mmHg		80%
	4.19 m/s		+29

5 September, Friday. day, 31°; night, 24°; clear

6 September, sat

	758 mmHg		79%
	4.4 m/s		+29

6 September, Saturday. day, 31°; night, 24°; partly cloudy

Average data for 10 years

Cayenne August

9

sunny days

19

days with precipitation

2

cloudy days

9 sunny days; 19 days with precipitation; 2 cloudy days;

83

%

air humidity

2.8

m/s

WindE

129

mm of precipitation

(5% of annual average)

+29

°C

Water temperature

air humidity 83%; 129 millimeters of precipitation (5% of annual average); Wind easterly 2.8 Meters per second; Water temperature +29°

Weather graphs for August

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

SE

SE

E

SE

SE

SE

E

E

E

E

E

E

E

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

25

26

27

28

29

30

31

Daytime temperature

Night-time temperature

Cities near you

Macapá
Abaetetuba
Paramaribo
Georgetown
New Amsterdam
Castanhal
Bonito
Santana
Breves

Cities with similar weather in August

Phuket
Rhodes
Santo Domingo
Aqaba
Eylat
Sousse
Punta Cana
Samui
Netanya

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

In August, the weather in Cayenne is typically hot. Average daily high temperature in August is about 30 degrees above zero. On average, Cayenne has 19 rainy, 9 sunny, and 3 partly cloudy days in August. The rains are usually heavy. August as well as January, February, March, and April is considered the most uncomfortable time to visit Cayenne.

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