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September weather forecast in Port-au-Prince

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

	760 mmHg		75%
	3.4 m/s		+30

31 August, Sunday. day, 29°; night, 26°; partly cloudy

1 September, mon

	760 mmHg		76%
	3.7 m/s		+30

1 September, Monday. day, 29°; night, 26°; clear

2 September, tue

	760 mmHg		76%
	3.6 m/s		+29

2 September, Tuesday. day, 29°; night, 25°; clear

3 September, wed

	760 mmHg		76%
	3.4 m/s		+29

3 September, Wednesday. day, 29°; night, 25°; rain

4 September, thu

	760 mmHg		75%
	3.5 m/s		+29

4 September, Thursday. day, 29°; night, 26°; clear

5 September, fri

	760 mmHg		75%
	3.5 m/s		+30

5 September, Friday. day, 29°; night, 26°; partly cloudy

6 September, sat

	760 mmHg		75%
	3.1 m/s		+30

6 September, Saturday. day, 29°; night, 26°; clear

7 September, sun

	760 mmHg		76%
	3.6 m/s		+29

7 September, Sunday. day, 29°; night, 25°; partly cloudy

8 September, mon

	760 mmHg		75%
	3.4 m/s		+30

8 September, Monday. day, 29°; night, 25°; rain

9 September, tue

	760 mmHg		75%
	3.3 m/s		+30

9 September, Tuesday. day, 29°; night, 26°; clear

10 September, wed

	760 mmHg		75%
	3.5 m/s		+30

10 September, Wednesday. day, 29°; night, 26°; clear

11 September, thu

	760 mmHg		74%
	3.5 m/s		+30

11 September, Thursday. day, 29°; night, 26°; clear

12 September, fri

	760 mmHg		75%
	3.3 m/s		+30

12 September, Friday. day, 29°; night, 26°; clear

13 September, sat

	760 mmHg		76%
	3.3 m/s		+30

13 September, Saturday. day, 29°; night, 25°; partly cloudy

14 September, sun

	760 mmHg		75%
	3.5 m/s		+30

14 September, Sunday. day, 29°; night, 25°; partly cloudy

15 September, mon

	760 mmHg		75%
	3.5 m/s		+30

15 September, Monday. day, 30°; night, 26°; partly cloudy

16 September, tue

	760 mmHg		75%
	3.2 m/s		+29

16 September, Tuesday. day, 29°; night, 26°; rain

17 September, wed

	760 mmHg		74%
	3.3 m/s		+30

17 September, Wednesday. day, 29°; night, 25°; partly cloudy

18 September, thu

	760 mmHg		75%
	3.2 m/s		+30

18 September, Thursday. day, 29°; night, 26°; clear

19 September, fri

	760 mmHg		75%
	3.4 m/s		+29

19 September, Friday. day, 29°; night, 25°; clear

20 September, sat

	760 mmHg		75%
	3.4 m/s		+29

20 September, Saturday. day, 29°; night, 25°; clear

21 September, sun

	760 mmHg		76%
	3.2 m/s		+30

21 September, Sunday. day, 29°; night, 25°; rain

22 September, mon

	759 mmHg		76%
	3.3 m/s		+30

22 September, Monday. day, 29°; night, 25°; overcast

23 September, tue

	759 mmHg		76%
	3.7 m/s		+30

23 September, Tuesday. day, 29°; night, 25°; overcast

24 September, wed

	760 mmHg		75%
	3.2 m/s		+30

24 September, Wednesday. day, 29°; night, 26°; rain

25 September, thu

	760 mmHg		75%
	3.2 m/s		+30

25 September, Thursday. day, 29°; night, 25°; partly cloudy

26 September, fri

	760 mmHg		75%
	3.1 m/s		+30

26 September, Friday. day, 29°; night, 25°; partly cloudy

27 September, sat

	760 mmHg		75%
	2.9 m/s		+30

27 September, Saturday. day, 29°; night, 25°; rain

28 September, sun

	760 mmHg		76%
	3.2 m/s		+30

28 September, Sunday. day, 29°; night, 25°; rain

29 September, mon

	760 mmHg		76%
	3.3 m/s		+30

29 September, Monday. day, 29°; night, 25°; rain

30 September, tue

	760 mmHg		75%
	3 m/s		+29

30 September, Tuesday. day, 29°; night, 25°; rain

1 October, wed

	759 mmHg		76%
	2.9 m/s		+30

1 October, Wednesday. day, 29°; night, 25°; rain

2 October, thu

	759 mmHg		77%
	2.9 m/s		+29

2 October, Thursday. day, 29°; night, 25°; rain

3 October, fri

	759 mmHg		77%
	3 m/s		+30

3 October, Friday. day, 29°; night, 25°; rain

4 October, sat

	759 mmHg		76%
	3.2 m/s		+30

4 October, Saturday. day, 29°; night, 25°; partly cloudy

Average data for 10 years

Port-au-Prince September

11

sunny days

9

days with precipitation

6

cloudy days

11 sunny days; 9 days with precipitation; 6 cloudy days;

75

%

air humidity

1.5

m/s

WindS

47

mm of precipitation

(13% of annual average)

+30

°C

Water temperature

air humidity 75%; 47 millimeters of precipitation (13% of annual average); Wind southerly 1.5 Meters per second; Water temperature +30°

Weather graphs for September

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

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S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

1

Average data for 10 years

2

3

4

5

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7

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10

11

12

13

14

15

16

17

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20

21

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23

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26

27

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29

30

Daytime temperature

Night-time temperature

Cities near you

Punta Cana
Santo Domingo
Santiago de Cuba
Bayahibe
Boca Chica
Samana
Puerto Plata
Santo Domingo Este
Sosua

Cities with similar weather in September

Tel Aviv
Jerba
Rhodes
Aqaba
Eylat
Sousse
Monastir
Haifa
Zanzibar

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

In September, the weather in Port-au-Prince is typically hot. Average daily high temperature in September is about 29 degrees above zero. On average, Port-au-Prince has 11 sunny, 9 rainy, 8 partly cloudy, and 2 cloudy days in September. The rains are usually moderate. September as well as May and October is considered the most uncomfortable time to visit Port-au-Prince.

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