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September weather forecast in Rio Grande

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

	763 mmHg		76%
	5 m/s		+25

31 August, Sunday. day, 26°; night, 22°; partly cloudy

1 September, mon

	763 mmHg		74%
	5.3 m/s		+25

1 September, Monday. day, 26°; night, 22°; rain

2 September, tue

	763 mmHg		76%
	5 m/s		+25

2 September, Tuesday. day, 25°; night, 21°; rain

3 September, wed

	762 mmHg		77%
	4.5 m/s		+25

3 September, Wednesday. day, 25°; night, 21°; partly cloudy

4 September, thu

	762 mmHg		75%
	4.6 m/s		+25

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

5 September, fri

	763 mmHg		74%
	5 m/s		+25

5 September, Friday. day, 26°; night, 21°; clear

6 September, sat

	764 mmHg		76%
	5.4 m/s		+24

6 September, Saturday. day, 25°; night, 21°; rain

7 September, sun

	763 mmHg		77%
	5.1 m/s		+24

7 September, Sunday. day, 25°; night, 20°; clear

8 September, mon

	762 mmHg		78%
	4.8 m/s		+24

8 September, Monday. day, 25°; night, 21°; clear

9 September, tue

	762 mmHg		78%
	5.2 m/s		+24

9 September, Tuesday. day, 25°; night, 20°; partly cloudy

10 September, wed

	763 mmHg		77%
	5 m/s		+24

10 September, Wednesday. day, 24°; night, 20°; clear

11 September, thu

	764 mmHg		76%
	5 m/s		+23

11 September, Thursday. day, 24°; night, 20°; rain

12 September, fri

	764 mmHg		75%
	4.6 m/s		+23

12 September, Friday. day, 24°; night, 20°; clear

13 September, sat

	763 mmHg		77%
	4.69 m/s		+24

13 September, Saturday. day, 24°; night, 20°; clear

14 September, sun

	763 mmHg		76%
	5.1 m/s		+24

14 September, Sunday. day, 24°; night, 20°; clear

15 September, mon

	764 mmHg		74%
	5 m/s		+23

15 September, Monday. day, 24°; night, 20°; rain

16 September, tue

	764 mmHg		74%
	4.8 m/s		+23

16 September, Tuesday. day, 23°; night, 19°; overcast

17 September, wed

	764 mmHg		76%
	5.1 m/s		+23

17 September, Wednesday. day, 23°; night, 19°; partly cloudy

18 September, thu

	763 mmHg		77%
	5.3 m/s		+23

18 September, Thursday. day, 23°; night, 19°; overcast

19 September, fri

	764 mmHg		74%
	5.3 m/s		+22

19 September, Friday. day, 23°; night, 18°; clear

20 September, sat

	764 mmHg		74%
	4.6 m/s		+22

20 September, Saturday. day, 23°; night, 18°; clear

21 September, sun

	764 mmHg		76%
	4.6 m/s		+23

21 September, Sunday. day, 23°; night, 18°; clear

22 September, mon

	763 mmHg		76%
	5.2 m/s		+23

22 September, Monday. day, 23°; night, 19°; partly cloudy

23 September, tue

	763 mmHg		73%
	5.7 m/s		+23

23 September, Tuesday. day, 23°; night, 18°; rain

24 September, wed

	764 mmHg		73%
	5.3 m/s		+22

24 September, Wednesday. day, 22°; night, 17°; overcast

25 September, thu

	763 mmHg		75%
	5.1 m/s		+22

25 September, Thursday. day, 22°; night, 18°; overcast

26 September, fri

	763 mmHg		78%
	5.4 m/s		+22

26 September, Friday. day, 22°; night, 18°; overcast

27 September, sat

	763 mmHg		79%
	5.2 m/s		+22

27 September, Saturday. day, 22°; night, 18°; overcast

28 September, sun

	761 mmHg		80%
	5.7 m/s		+22

28 September, Sunday. day, 23°; night, 19°; rain

29 September, mon

	762 mmHg		75%
	5.8 m/s		+22

29 September, Monday. day, 21°; night, 18°; rain

30 September, tue

	763 mmHg		74%
	5.7 m/s		+21

30 September, Tuesday. day, 20°; night, 16°; rain

1 October, wed

	763 mmHg		75%
	5.1 m/s		+21

1 October, Wednesday. day, 20°; night, 16°; partly cloudy

2 October, thu

	764 mmHg		74%
	5.2 m/s		+21

2 October, Thursday. day, 20°; night, 15°; clear

3 October, fri

	764 mmHg		77%
	5.2 m/s		+21

3 October, Friday. day, 21°; night, 16°; clear

4 October, sat

	764 mmHg		79%
	5.1 m/s		+21

4 October, Saturday. day, 21°; night, 16°; partly cloudy

Average data for 10 years

Rio Grande September

11

sunny days

9

days with precipitation

7

cloudy days

11 sunny days; 9 days with precipitation; 7 cloudy days;

76

%

air humidity

3.6

m/s

WindS

96

mm of precipitation

(9% of annual average)

+23

°C

Water temperature

air humidity 76%; 96 millimeters of precipitation (9% of annual average); Wind southerly 3.6 Meters per second; Water temperature +23°

Weather graphs for September

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

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S

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S

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SE

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SE

SE

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S

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1

Average data for 10 years

2

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11

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30

Daytime temperature

Night-time temperature

Cities near you

New York
Washington
Philadelphia
Islandia
Jamaica
Brooklyn
Brookhaven
Atlantic City
Richmond

Cities with similar weather in September

Gagra
Istanbul
Baku
Batumi
Pitsunda
Budva
Rimini
Venice
New Athos

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

In September, the weather in Rio Grande is typically warm. Average daily high temperature in September is about 24 degrees above zero. On average, Rio Grande has 11 sunny, 9 rainy, 6 cloudy, and 4 partly cloudy days in September. The rains are usually heavy.

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