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September weather forecast in Jaffna

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

	755 mmHg		80%
	8.39 m/s		+29

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

1 September, mon

	755 mmHg		80%
	8.3 m/s		+29

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

2 September, tue

	755 mmHg		81%
	8.5 m/s		+29

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

3 September, wed

	755 mmHg		80%
	8.7 m/s		+29

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

4 September, thu

	755 mmHg		81%
	8.89 m/s		+29

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

5 September, fri

	755 mmHg		81%
	9.2 m/s		+29

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

6 September, sat

	755 mmHg		81%
	9.3 m/s		+29

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

7 September, sun

	755 mmHg		80%
	9 m/s		+29

7 September, Sunday. day, 29°; night, 27°; overcast

8 September, mon

	756 mmHg		80%
	8.89 m/s		+29

8 September, Monday. day, 29°; night, 27°; overcast

9 September, tue

	756 mmHg		81%
	9.1 m/s		+29

9 September, Tuesday. day, 29°; night, 27°; overcast

10 September, wed

	755 mmHg		81%
	8.7 m/s		+29

10 September, Wednesday. day, 29°; night, 27°; rain

11 September, thu

	755 mmHg		80%
	8.7 m/s		+29

11 September, Thursday. day, 29°; night, 27°; partly cloudy

12 September, fri

	756 mmHg		80%
	8.6 m/s		+29

12 September, Friday. day, 29°; night, 27°; partly cloudy

13 September, sat

	756 mmHg		80%
	8.7 m/s		+29

13 September, Saturday. day, 29°; night, 27°; clear

14 September, sun

	756 mmHg		80%
	8.89 m/s		+29

14 September, Sunday. day, 29°; night, 27°; rain

15 September, mon

	755 mmHg		80%
	9.39 m/s		+29

15 September, Monday. day, 29°; night, 27°; partly cloudy

16 September, tue

	755 mmHg		80%
	9.3 m/s		+29

16 September, Tuesday. day, 29°; night, 27°; partly cloudy

17 September, wed

	755 mmHg		81%
	9.1 m/s		+29

17 September, Wednesday. day, 29°; night, 27°; rain

18 September, thu

	756 mmHg		81%
	8.89 m/s		+29

18 September, Thursday. day, 29°; night, 27°; overcast

19 September, fri

	755 mmHg		80%
	8.89 m/s		+29

19 September, Friday. day, 29°; night, 27°; overcast

20 September, sat

	755 mmHg		80%
	8.89 m/s		+29

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

21 September, sun

	756 mmHg		81%
	8.6 m/s		+29

21 September, Sunday. day, 29°; night, 27°; clear

22 September, mon

	756 mmHg		80%
	8.3 m/s		+29

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

23 September, tue

	756 mmHg		80%
	8.1 m/s		+29

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

24 September, wed

	756 mmHg		80%
	8 m/s		+29

24 September, Wednesday. day, 29°; night, 27°; partly cloudy

25 September, thu

	756 mmHg		80%
	7.9 m/s		+29

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

26 September, fri

	756 mmHg		81%
	7.6 m/s		+29

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

27 September, sat

	756 mmHg		81%
	7.5 m/s		+29

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

28 September, sun

	756 mmHg		81%
	7.5 m/s		+29

28 September, Sunday. day, 29°; night, 27°; rain

29 September, mon

	756 mmHg		81%
	7.5 m/s		+29

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

30 September, tue

	756 mmHg		81%
	7.5 m/s		+29

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

1 October, wed

	756 mmHg		81%
	7.5 m/s		+29

1 October, Wednesday. day, 28°; night, 27°; partly cloudy

2 October, thu

	756 mmHg		81%
	7.5 m/s		+29

2 October, Thursday. day, 29°; night, 27°; clear

3 October, fri

	756 mmHg		80%
	7.5 m/s		+29

3 October, Friday. day, 29°; night, 27°; clear

4 October, sat

	756 mmHg		80%
	7.1 m/s		+29

4 October, Saturday. day, 29°; night, 27°; partly cloudy

Average data for 10 years

Jaffna September

4

sunny days

14

days with precipitation

14

cloudy days

4 sunny days; 14 days with precipitation; 14 cloudy days;

80

%

air humidity

7.1

m/s

WindSW

77

mm of precipitation

(7% of annual average)

+29

°C

Water temperature

air humidity 80%; 77 millimeters of precipitation (7% of annual average); Wind south-westerly 7.1 Meters per second; Water temperature +29°

Weather graphs for September

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

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

S

SW

S

SW

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

Unawatuna
Colombo
Hikkaduwa
Sri Jayawardenapura Kotte
Bentota
Galle
Tangalle
Pasikudah
Kalutara

Cities with similar weather in September

Tel Aviv
Jerba
Rhodes
Aqaba
Goa
Eylat
Haifa
Zanzibar
Netanya

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

In September, the weather in Jaffna is typically hot. Average daily high temperature in September is about 29 degrees above zero. On average, Jaffna has 14 rainy, 7 cloudy, 5 partly cloudy, and 4 sunny days in September. The rains are usually heavy. September as well as October, November, and December is considered the most uncomfortable time to visit Jaffna.

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