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September weather forecast in Sonsonate

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

	742 mmHg		87%
	2.4 m/s		+30

31 August, Sunday. day, 28°; night, 22°; rain

1 September, mon

	742 mmHg		88%
	2.6 m/s		+30

1 September, Monday. day, 28°; night, 22°; rain

2 September, tue

	742 mmHg		87%
	2.5 m/s		+30

2 September, Tuesday. day, 28°; night, 22°; rain

3 September, wed

	742 mmHg		88%
	2.3 m/s		+30

3 September, Wednesday. day, 28°; night, 22°; rain

4 September, thu

	742 mmHg		88%
	2.3 m/s		+30

4 September, Thursday. day, 28°; night, 22°; rain

5 September, fri

	742 mmHg		88%
	2.3 m/s		+30

5 September, Friday. day, 28°; night, 22°; rain

6 September, sat

	742 mmHg		88%
	2.4 m/s		+30

6 September, Saturday. day, 28°; night, 22°; rain

7 September, sun

	742 mmHg		88%
	2.4 m/s		+30

7 September, Sunday. day, 28°; night, 22°; rain

8 September, mon

	742 mmHg		88%
	2.4 m/s		+30

8 September, Monday. day, 28°; night, 22°; rain

9 September, tue

	741 mmHg		87%
	2.6 m/s		+30

9 September, Tuesday. day, 28°; night, 22°; rain

10 September, wed

	742 mmHg		87%
	2.6 m/s		+30

10 September, Wednesday. day, 28°; night, 22°; rain

11 September, thu

	742 mmHg		88%
	2.5 m/s		+30

11 September, Thursday. day, 28°; night, 22°; rain

12 September, fri

	742 mmHg		88%
	2.5 m/s		+30

12 September, Friday. day, 28°; night, 22°; rain

13 September, sat

	741 mmHg		88%
	2.5 m/s		+30

13 September, Saturday. day, 28°; night, 22°; rain

14 September, sun

	742 mmHg		88%
	2.5 m/s		+30

14 September, Sunday. day, 28°; night, 22°; rain

15 September, mon

	742 mmHg		87%
	2.5 m/s		+30

15 September, Monday. day, 28°; night, 22°; rain

16 September, tue

	742 mmHg		88%
	2.4 m/s		+30

16 September, Tuesday. day, 28°; night, 22°; rain

17 September, wed

	742 mmHg		88%
	2.4 m/s		+30

17 September, Wednesday. day, 28°; night, 22°; rain

18 September, thu

	742 mmHg		88%
	2.4 m/s		+30

18 September, Thursday. day, 28°; night, 22°; rain

19 September, fri

	742 mmHg		87%
	2.5 m/s		+30

19 September, Friday. day, 28°; night, 22°; partly cloudy

20 September, sat

	742 mmHg		88%
	2.3 m/s		+30

20 September, Saturday. day, 28°; night, 22°; rain

21 September, sun

	741 mmHg		88%
	2.5 m/s		+30

21 September, Sunday. day, 28°; night, 22°; rain

22 September, mon

	741 mmHg		88%
	2.4 m/s		+30

22 September, Monday. day, 28°; night, 22°; rain

23 September, tue

	741 mmHg		89%
	2.6 m/s		+30

23 September, Tuesday. day, 28°; night, 22°; rain

24 September, wed

	741 mmHg		89%
	2.6 m/s		+30

24 September, Wednesday. day, 28°; night, 22°; rain

25 September, thu

	741 mmHg		88%
	2.6 m/s		+30

25 September, Thursday. day, 28°; night, 22°; rain

26 September, fri

	741 mmHg		89%
	2.8 m/s		+30

26 September, Friday. day, 27°; night, 22°; rain

27 September, sat

	742 mmHg		89%
	2.7 m/s		+30

27 September, Saturday. day, 27°; night, 22°; rain

28 September, sun

	741 mmHg		89%
	2.5 m/s		+30

28 September, Sunday. day, 27°; night, 22°; rain

29 September, mon

	741 mmHg		88%
	2.7 m/s		+30

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

30 September, tue

	741 mmHg		89%
	2.5 m/s		+30

30 September, Tuesday. day, 27°; night, 22°; rain

1 October, wed

	741 mmHg		88%
	2.5 m/s		+30

1 October, Wednesday. day, 27°; night, 22°; rain

2 October, thu

	741 mmHg		88%
	2.5 m/s		+30

2 October, Thursday. day, 28°; night, 22°; rain

3 October, fri

	741 mmHg		88%
	2.5 m/s		+30

3 October, Friday. day, 27°; night, 22°; rain

4 October, sat

	741 mmHg		87%
	2.6 m/s		+30

4 October, Saturday. day, 28°; night, 22°; rain

Average data for 10 years

Sonsonate September

0

sunny days

29

days with precipitation

21

cloudy days

0 sunny days; 29 days with precipitation; 21 cloudy days;

88

%

air humidity

1.4

m/s

WindS

401

mm of precipitation

(19% of annual average)

+30

°C

Water temperature

air humidity 88%; 401 millimeters of precipitation (19% of annual average); Wind southerly 1.4 Meters per second; Water temperature +30°

Weather graphs for September

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

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SE

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SE

SE

SE

S

S

S

SE

S

SE

SE

SE

S

S

SE

SE

S

S

S

S

S

S

S

1

Average data for 10 years

2

3

4

5

6

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8

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10

11

12

13

14

15

16

17

18

19

20

21

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29

30

Daytime temperature

Night-time temperature

Cities near you

Managua
Guatemala City
San Salvador
San Marcos
Tikal
San Miguel
Santa Catarina Palopo
Flores
Belmopan

Cities with similar weather in September

Tel Aviv
Jerba
Limassol
Rhodes
Aqaba
Eylat
Sousse
Monastir
Haifa

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

In September, the weather in Sonsonate is typically hot. Average daily high temperature in September is about 28 degrees above zero. On average, Sonsonate has 29 rainy and 1 partly cloudy day in September. The rains are usually heavy. September as well as May, June, July, and August is considered the most uncomfortable time to visit Sonsonate.

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