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September weather forecast in San Juan

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

1 September, sun

	703 mmHg		37%
	4.6 m/s

1 September, Sunday. day, 19°; night, 13°; clear

2 September, mon

	705 mmHg		38%
	4.6 m/s

2 September, Monday. day, 17°; night, 12°; clear

3 September, tue

	705 mmHg		36%
	4.5 m/s

3 September, Tuesday. day, 17°; night, 11°; clear

4 September, wed

	704 mmHg		37%
	4.3 m/s

4 September, Wednesday. day, 18°; night, 11°; clear

5 September, thu

	703 mmHg		31%
	4.5 m/s

5 September, Thursday. day, 20°; night, 12°; clear

6 September, fri

	703 mmHg		31%
	4 m/s

6 September, Friday. day, 20°; night, 13°; clear

7 September, sat

	701 mmHg		23%
	4.4 m/s

7 September, Saturday. day, 22°; night, 13°; clear

8 September, sun

	702 mmHg		34%
	5.5 m/s

8 September, Sunday. day, 20°; night, 15°; clear

9 September, mon

	704 mmHg		31%
	4.3 m/s

9 September, Monday. day, 19°; night, 12°; clear

10 September, tue

	704 mmHg		30%
	4 m/s

10 September, Tuesday. day, 20°; night, 14°; clear

11 September, wed

	703 mmHg		31%
	5.1 m/s

11 September, Wednesday. day, 20°; night, 13°; clear

12 September, thu

	704 mmHg		31%
	4 m/s

12 September, Thursday. day, 18°; night, 12°; clear

13 September, fri

	703 mmHg		28%
	4.4 m/s

13 September, Friday. day, 21°; night, 13°; clear

14 September, sat

	703 mmHg		30%
	4.6 m/s

14 September, Saturday. day, 20°; night, 13°; clear

15 September, sun

	704 mmHg		31%
	4.5 m/s

15 September, Sunday. day, 21°; night, 13°; clear

16 September, mon

	703 mmHg		28%
	4.5 m/s

16 September, Monday. day, 21°; night, 13°; clear

17 September, tue

	703 mmHg		28%
	4.4 m/s

17 September, Tuesday. day, 21°; night, 14°; clear

18 September, wed

	703 mmHg		31%
	5.3 m/s

18 September, Wednesday. day, 21°; night, 14°; clear

19 September, thu

	703 mmHg		28%
	4.6 m/s

19 September, Thursday. day, 21°; night, 14°; clear

20 September, fri

	702 mmHg		28%
	5 m/s

20 September, Friday. day, 22°; night, 15°; clear

21 September, sat

	704 mmHg		33%
	5.6 m/s

21 September, Saturday. day, 18°; night, 14°; clear

22 September, sun

	705 mmHg		31%
	3.7 m/s

22 September, Sunday. day, 20°; night, 12°; clear

23 September, mon

	702 mmHg		18%
	4 m/s

23 September, Monday. day, 23°; night, 14°; clear

24 September, tue

	703 mmHg		25%
	4.9 m/s

24 September, Tuesday. day, 22°; night, 15°; clear

25 September, wed

	703 mmHg		28%
	4.8 m/s

25 September, Wednesday. day, 21°; night, 15°; clear

26 September, thu

	702 mmHg		31%
	5 m/s

26 September, Thursday. day, 21°; night, 14°; clear

27 September, fri

	702 mmHg		34%
	4.5 m/s

27 September, Friday. day, 21°; night, 13°; clear

28 September, sat

	703 mmHg		34%
	5.3 m/s

28 September, Saturday. day, 20°; night, 13°; clear

29 September, sun

	701 mmHg		28%
	4.5 m/s

29 September, Sunday. day, 23°; night, 14°; clear

30 September, mon

	702 mmHg		30%
	5 m/s

30 September, Monday. day, 22°; night, 14°; clear

1 October, tue

	703 mmHg		31%
	4.6 m/s

1 October, Tuesday. day, 20°; night, 13°; clear

2 October, wed

	702 mmHg		30%
	4.5 m/s

2 October, Wednesday. day, 23°; night, 14°; clear

3 October, thu

	700 mmHg		23%
	5.9 m/s

3 October, Thursday. day, 25°; night, 16°; clear

4 October, fri

	701 mmHg		23%
	4.8 m/s

4 October, Friday. day, 25°; night, 16°; clear

5 October, sat

	702 mmHg		28%
	5.4 m/s

5 October, Saturday. day, 23°; night, 16°; clear

Average data for 10 years

San Juan September

30

sunny days

0

days with precipitation

0

cloudy days

30 sunny days; 0 days with precipitation; 0 cloudy days;

31

%

air humidity

3.2

m/s

WindS

2

mm of precipitation

(3% of annual average)

air humidity 31%; 2 millimeters of precipitation (3% of annual average); Wind southerly 3.2 Meters per second

Weather graphs for September

TemperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

S

S

SE

S

SW

S

NW

S

SE

E

S

S

NW

NW

S

S

SE

S

S

S

S

SE

W

S

S

S

S

S

SE

SE

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

Santiago
Mendoza
Vina del Mar
La Serena
Valparaiso
La Rioja
Concon
Ovalle
Rancagua

Cities with similar weather in September

Paris
Sydney
Mexico
Antananarivo
Addis Ababa
Maseru
Cordoba
Porto Alegre
Tours

The weather forecast for September 2024 is based on historical data from the past 10 years.

In September, the weather in San Juan is typically warm. Average daily high temperature in September is about 20 degrees above zero. On average, San Juan has 30 sunny days in September. September as well as March, April, and October is considered the most comfortable time to visit San Juan.

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