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September weather forecast in Itaguaí

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

	715 mmHg		75%
	3.3 m/s		+21

31 August, Sunday. day, 26°; night, 16°; clear

1 September, mon

	714 mmHg		74%
	3.1 m/s		+21

1 September, Monday. day, 26°; night, 17°; clear

2 September, tue

	714 mmHg		74%
	3.3 m/s		+21

2 September, Tuesday. day, 26°; night, 17°; clear

3 September, wed

	714 mmHg		73%
	3.3 m/s		+21

3 September, Wednesday. day, 26°; night, 17°; clear

4 September, thu

	714 mmHg		75%
	3.2 m/s		+21

4 September, Thursday. day, 25°; night, 17°; clear

5 September, fri

	715 mmHg		77%
	3.3 m/s		+21

5 September, Friday. day, 24°; night, 16°; partly cloudy

6 September, sat

	715 mmHg		79%
	3.1 m/s		+21

6 September, Saturday. day, 24°; night, 16°; partly cloudy

7 September, sun

	714 mmHg		77%
	3.2 m/s		+21

7 September, Sunday. day, 25°; night, 17°; clear

8 September, mon

	714 mmHg		74%
	3.3 m/s		+21

8 September, Monday. day, 27°; night, 17°; clear

9 September, tue

	714 mmHg		71%
	3.2 m/s		+21

9 September, Tuesday. day, 27°; night, 18°; clear

10 September, wed

	714 mmHg		75%
	3.4 m/s		+21

10 September, Wednesday. day, 27°; night, 18°; clear

11 September, thu

	714 mmHg		75%
	3.2 m/s		+21

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

12 September, fri

	714 mmHg		72%
	3.2 m/s		+22

12 September, Friday. day, 26°; night, 17°; clear

13 September, sat

	714 mmHg		72%
	3.3 m/s		+22

13 September, Saturday. day, 27°; night, 18°; clear

14 September, sun

	713 mmHg		74%
	3.3 m/s		+22

14 September, Sunday. day, 27°; night, 18°; rain

15 September, mon

	714 mmHg		77%
	3.4 m/s		+21

15 September, Monday. day, 25°; night, 18°; rain

16 September, tue

	714 mmHg		80%
	3.4 m/s		+21

16 September, Tuesday. day, 24°; night, 17°; rain

17 September, wed

	714 mmHg		78%
	3.3 m/s		+21

17 September, Wednesday. day, 24°; night, 17°; rain

18 September, thu

	714 mmHg		78%
	3.2 m/s		+22

18 September, Thursday. day, 25°; night, 17°; rain

19 September, fri

	714 mmHg		76%
	3.1 m/s		+22

19 September, Friday. day, 27°; night, 17°; partly cloudy

20 September, sat

	713 mmHg		77%
	3.4 m/s		+22

20 September, Saturday. day, 26°; night, 18°; partly cloudy

21 September, sun

	713 mmHg		78%
	3.5 m/s		+22

21 September, Sunday. day, 26°; night, 18°; rain

22 September, mon

	714 mmHg		79%
	3.3 m/s		+21

22 September, Monday. day, 25°; night, 17°; rain

23 September, tue

	713 mmHg		76%
	3.2 m/s		+21

23 September, Tuesday. day, 26°; night, 17°; partly cloudy

24 September, wed

	713 mmHg		76%
	3.5 m/s		+21

24 September, Wednesday. day, 26°; night, 17°; partly cloudy

25 September, thu

	714 mmHg		80%
	3.4 m/s		+21

25 September, Thursday. day, 24°; night, 17°; rain

26 September, fri

	714 mmHg		80%
	3.2 m/s		+21

26 September, Friday. day, 24°; night, 17°; overcast

27 September, sat

	713 mmHg		79%
	3.2 m/s		+21

27 September, Saturday. day, 25°; night, 17°; rain

28 September, sun

	714 mmHg		80%
	3.1 m/s		+21

28 September, Sunday. day, 25°; night, 17°; rain

29 September, mon

	714 mmHg		81%
	3.1 m/s		+21

29 September, Monday. day, 25°; night, 17°; rain

30 September, tue

	714 mmHg		82%
	3.1 m/s		+22

30 September, Tuesday. day, 24°; night, 18°; rain

1 October, wed

	713 mmHg		79%
	3.1 m/s		+21

1 October, Wednesday. day, 26°; night, 18°; partly cloudy

2 October, thu

	712 mmHg		79%
	3.3 m/s		+21

2 October, Thursday. day, 27°; night, 18°; rain

3 October, fri

	713 mmHg		82%
	3.1 m/s		+21

3 October, Friday. day, 25°; night, 18°; rain

4 October, sat

	713 mmHg		81%
	3 m/s		+21

4 October, Saturday. day, 25°; night, 18°; partly cloudy

Average data for 10 years

Itaguaí September

11

sunny days

12

days with precipitation

10

cloudy days

11 sunny days; 12 days with precipitation; 10 cloudy days;

77

%

air humidity

1.9

m/s

WindSE

79

mm of precipitation

(5% of annual average)

+21

°C

Water temperature

air humidity 77%; 79 millimeters of precipitation (5% of annual average); Wind south-easterly 1.9 Meters per second; Water temperature +21°

Weather graphs for September

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

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SE

S

SE

1

Average data for 10 years

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30

Daytime temperature

Night-time temperature

Cities near you

Rio de Janeiro
Sao Paulo
Santos
Rio das Ostras
Belo Horizonte
Barra Mansa
Guarapari
Ubatuba
Ribeirão Pires

Cities with similar weather in September

Barcelona
Heraklion
Salou
Malaga
Retimno
Hersonisos
Kos
Santa Cruz de Tenerife
Funchal

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

September in Itaguaí is the windiest month of the year. In September, the weather in Itaguaí is typically warm. Average daily high temperature in September is about 25 degrees above zero. On average, Itaguaí has 12 rainy, 11 sunny, 6 partly cloudy, and 1 cloudy day in September. The rains are usually heavy.

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