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September weather forecast in Roseau

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

	751 mmHg		82%
	8.1 m/s		+29

31 August, Sunday. day, 27°; night, 26°; clear

1 September, mon

	751 mmHg		82%
	7.7 m/s		+29

1 September, Monday. day, 27°; night, 26°; rain

2 September, tue

	751 mmHg		82%
	7.8 m/s		+29

2 September, Tuesday. day, 27°; night, 26°; rain

3 September, wed

	751 mmHg		82%
	7.6 m/s		+29

3 September, Wednesday. day, 27°; night, 26°; partly cloudy

4 September, thu

	751 mmHg		82%
	8 m/s		+29

4 September, Thursday. day, 27°; night, 26°; rain

5 September, fri

	751 mmHg		81%
	8.2 m/s		+29

5 September, Friday. day, 27°; night, 26°; clear

6 September, sat

	751 mmHg		82%
	7.9 m/s		+29

6 September, Saturday. day, 27°; night, 26°; rain

7 September, sun

	750 mmHg		82%
	7.4 m/s		+29

7 September, Sunday. day, 27°; night, 26°; rain

8 September, mon

	750 mmHg		82%
	7.5 m/s		+29

8 September, Monday. day, 27°; night, 26°; rain

9 September, tue

	751 mmHg		82%
	7.8 m/s		+29

9 September, Tuesday. day, 28°; night, 26°; partly cloudy

10 September, wed

	751 mmHg		82%
	8.2 m/s		+29

10 September, Wednesday. day, 27°; night, 26°; clear

11 September, thu

	751 mmHg		82%
	8.2 m/s		+29

11 September, Thursday. day, 27°; night, 26°; rain

12 September, fri

	750 mmHg		82%
	7.7 m/s		+30

12 September, Friday. day, 27°; night, 26°; rain

13 September, sat

	750 mmHg		82%
	7.6 m/s		+30

13 September, Saturday. day, 27°; night, 26°; rain

14 September, sun

	751 mmHg		81%
	7.6 m/s		+29

14 September, Sunday. day, 27°; night, 26°; rain

15 September, mon

	751 mmHg		82%
	8 m/s		+29

15 September, Monday. day, 28°; night, 26°; rain

16 September, tue

	751 mmHg		82%
	8.2 m/s		+30

16 September, Tuesday. day, 27°; night, 26°; partly cloudy

17 September, wed

	750 mmHg		82%
	8 m/s		+30

17 September, Wednesday. day, 27°; night, 26°; rain

18 September, thu

	750 mmHg		81%
	7.8 m/s		+30

18 September, Thursday. day, 27°; night, 26°; rain

19 September, fri

	750 mmHg		81%
	7.5 m/s		+30

19 September, Friday. day, 27°; night, 26°; rain

20 September, sat

	750 mmHg		81%
	7.5 m/s		+30

20 September, Saturday. day, 27°; night, 26°; overcast

21 September, sun

	750 mmHg		81%
	7.4 m/s		+30

21 September, Sunday. day, 27°; night, 26°; overcast

22 September, mon

	750 mmHg		81%
	7.3 m/s		+29

22 September, Monday. day, 28°; night, 26°; partly cloudy

23 September, tue

	750 mmHg		81%
	7.9 m/s		+29

23 September, Tuesday. day, 27°; night, 26°; rain

24 September, wed

	751 mmHg		81%
	8.1 m/s		+29

24 September, Wednesday. day, 27°; night, 26°; rain

25 September, thu

	751 mmHg		82%
	7.7 m/s		+29

25 September, Thursday. day, 27°; night, 26°; rain

26 September, fri

	751 mmHg		81%
	7.5 m/s		+30

26 September, Friday. day, 27°; night, 26°; partly cloudy

27 September, sat

	750 mmHg		81%
	7.9 m/s		+30

27 September, Saturday. day, 27°; night, 26°; partly cloudy

28 September, sun

	750 mmHg		81%
	8 m/s		+29

28 September, Sunday. day, 27°; night, 26°; rain

29 September, mon

	750 mmHg		82%
	7.9 m/s		+29

29 September, Monday. day, 27°; night, 26°; rain

30 September, tue

	750 mmHg		81%
	7.4 m/s		+30

30 September, Tuesday. day, 27°; night, 26°; rain

1 October, wed

	750 mmHg		82%
	7.7 m/s		+30

1 October, Wednesday. day, 27°; night, 26°; rain

2 October, thu

	750 mmHg		82%
	8.3 m/s		+29

2 October, Thursday. day, 27°; night, 26°; rain

3 October, fri

	750 mmHg		82%
	8.1 m/s		+29

3 October, Friday. day, 27°; night, 26°; rain

4 October, sat

	750 mmHg		83%
	8.2 m/s		+29

4 October, Saturday. day, 27°; night, 26°; rain

Average data for 10 years

Roseau September

2

sunny days

20

days with precipitation

8

cloudy days

2 sunny days; 20 days with precipitation; 8 cloudy days;

82

%

air humidity

6.3

m/s

WindE

128

mm of precipitation

(14% of annual average)

+29

°C

Water temperature

air humidity 82%; 128 millimeters of precipitation (14% of annual average); Wind easterly 6.3 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

SE

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

Bridgetown
Kingstown
The Valley
Basseterre
Fort-de-France
Saint George's
Barbados (International Airport)
Soufriere
Antigua

Cities with similar weather in September

Santo Domingo
Varadero
Phan Thiet
Samui
Krabi
Ko Chang
Mumbai
Puerto Plata
Panaji

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

September in Roseau is the cloudiest and the warmest month of the year. In September, the weather in Roseau is typically warm. Average daily high temperature in September is about 27 degrees above zero. On average, Roseau has 20 rainy, 6 partly cloudy, 2 sunny, and 2 cloudy days in September. The rains are usually heavy. September as well as July, August, October, and November is considered the most uncomfortable time to visit Roseau.

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