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September 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

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

7 September, sun

	758 mmHg		80%
	4.19 m/s		+28

7 September, Sunday. day, 30°; night, 24°; overcast

8 September, mon

	757 mmHg		80%
	4.1 m/s		+28

8 September, Monday. day, 30°; night, 24°; rain

9 September, tue

	758 mmHg		80%
	4 m/s		+28

9 September, Tuesday. day, 30°; night, 24°; rain

10 September, wed

	758 mmHg		81%
	4.1 m/s		+29

10 September, Wednesday. day, 30°; night, 24°; rain

11 September, thu

	758 mmHg		80%
	4.19 m/s		+29

11 September, Thursday. day, 31°; night, 24°; partly cloudy

12 September, fri

	757 mmHg		80%
	4.3 m/s		+29

12 September, Friday. day, 31°; night, 24°; rain

13 September, sat

	758 mmHg		80%
	4.3 m/s		+29

13 September, Saturday. day, 31°; night, 24°; clear

14 September, sun

	758 mmHg		80%
	4.1 m/s		+29

14 September, Sunday. day, 31°; night, 24°; rain

15 September, mon

	758 mmHg		81%
	4 m/s		+29

15 September, Monday. day, 30°; night, 24°; rain

16 September, tue

	758 mmHg		81%
	4.1 m/s		+29

16 September, Tuesday. day, 31°; night, 24°; rain

17 September, wed

	758 mmHg		80%
	4.4 m/s		+29

17 September, Wednesday. day, 31°; night, 24°; partly cloudy

18 September, thu

	757 mmHg		79%
	4.4 m/s		+29

18 September, Thursday. day, 31°; night, 24°; partly cloudy

19 September, fri

	757 mmHg		79%
	4.3 m/s		+29

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

20 September, sat

	757 mmHg		79%
	4.4 m/s		+29

20 September, Saturday. day, 31°; night, 24°; clear

21 September, sun

	757 mmHg		79%
	4.3 m/s		+29

21 September, Sunday. day, 31°; night, 24°; clear

22 September, mon

	757 mmHg		79%
	4.3 m/s		+29

22 September, Monday. day, 31°; night, 24°; partly cloudy

23 September, tue

	757 mmHg		78%
	4.4 m/s		+29

23 September, Tuesday. day, 31°; night, 24°; partly cloudy

24 September, wed

	757 mmHg		79%
	4.3 m/s		+29

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

25 September, thu

	757 mmHg		79%
	4.19 m/s		+29

25 September, Thursday. day, 31°; night, 24°; clear

26 September, fri

	757 mmHg		78%
	4.19 m/s		+29

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

27 September, sat

	757 mmHg		79%
	4.4 m/s		+29

27 September, Saturday. day, 31°; night, 24°; clear

28 September, sun

	757 mmHg		78%
	4.6 m/s		+29

28 September, Sunday. day, 31°; night, 24°; partly cloudy

29 September, mon

	757 mmHg		79%
	4.5 m/s		+29

29 September, Monday. day, 31°; night, 24°; rain

30 September, tue

	757 mmHg		79%
	4.3 m/s		+29

30 September, Tuesday. day, 31°; night, 24°; clear

1 October, wed

	757 mmHg		80%
	4.3 m/s		+29

1 October, Wednesday. day, 31°; night, 24°; rain

2 October, thu

	757 mmHg		80%
	4.3 m/s		+29

2 October, Thursday. day, 31°; night, 24°; clear

3 October, fri

	757 mmHg		79%
	4.4 m/s		+29

3 October, Friday. day, 31°; night, 24°; clear

4 October, sat

	757 mmHg		79%
	4.4 m/s		+29

4 October, Saturday. day, 31°; night, 24°; clear

Average data for 10 years

Cayenne September

11

sunny days

11

days with precipitation

1

cloudy day

11 sunny days; 11 days with precipitation; 1 cloudy day;

80

%

air humidity

3.2

m/s

WindE

55

mm of precipitation

(3% of annual average)

+29

°C

Water temperature

air humidity 80%; 55 millimeters of precipitation (3% of annual average); Wind easterly 3.2 Meters per second; Water temperature +29°

Weather graphs for September

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

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

Daytime temperature

Night-time temperature

Cities near you

Macapá
Abaetetuba
Paramaribo
Georgetown
New Amsterdam
Castanhal
Bonito
Santana
Breves

Cities with similar weather in September

Pattaya
Santo Domingo
Varadero
Havana
Ko Chang
Mumbai
Kinshasa
Boca Chica
Da Nang

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

September in Cayenne is the sunniest month of the year. In September, the weather in Cayenne is typically hot. Average daily high temperature in September is about 31 degrees above zero. On average, Cayenne has 11 rainy, 11 sunny, 7 partly cloudy, and 1 cloudy day in September. The rains are usually moderate.

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