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September

Rio De Janeiro Weather in September with Sea Temperature

September weather in Rio De Janeiro includes average daytime air +27°C, nighttime +20°C, average sea temperature +24°C. Daily water temperatures usually range from +22°C to +25°C, which is mild for beach planning. The tables below also show air temperature, wind, rain and humidity; for near-term water data, open the current 30-day water temperature forecast.

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Averaged values across several years

Daily air temperature for the month

Day Night

Daily sea water temperature for the month

Water

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Mon	+26°C	+19°C	+22°C	3 m/s	0.3 mm	77%
2Tue	+27°C	+19°C	+24°C	3 m/s	0.2 mm	74%
3Wed	+28°C	+19°C	+23°C	3 m/s	0 mm	71%
4Thu	+27°C	+20°C	+23°C	3 m/s	0.1 mm	73%
5Fri	+26°C	+20°C	+23°C	3 m/s	0.2 mm	77%
6Sat	+24°C	+20°C	+23°C	3 m/s	0.2 mm	80%
7Sun	+25°C	+19°C	+24°C	3 m/s	0.2 mm	79%
8Mon	+28°C	+19°C	+24°C	3 m/s	0 mm	74%
9Tue	+31°C	+20°C	+23°C	3 m/s	0 mm	70%
10Wed	+29°C	+21°C	+24°C	3 m/s	0.2 mm	72%
11Thu	+28°C	+21°C	+24°C	2 m/s	0 mm	72%
12Fri	+29°C	+21°C	+24°C	3 m/s	0 mm	68%
13Sat	+29°C	+21°C	+24°C	3 m/s	0.3 mm	68%
14Sun	+30°C	+21°C	+24°C	3 m/s	0.3 mm	67%
15Mon	+25°C	+20°C	+24°C	3 m/s	0.7 mm	82%
16Tue	+26°C	+20°C	+24°C	3 m/s	0.9 mm	82%
17Wed	+27°C	+20°C	+24°C	3 m/s	0.2 mm	75%
18Thu	+29°C	+20°C	+25°C	3 m/s	0 mm	73%
19Fri	+29°C	+20°C	+25°C	3 m/s	0.1 mm	72%
20Sat	+28°C	+21°C	+23°C	3 m/s	0.4 mm	75%
21Sun	+27°C	+21°C	+24°C	3 m/s	0.9 mm	81%
22Mon	+26°C	+20°C	+24°C	4 m/s	5.1 mm	78%
23Tue	+24°C	+20°C	+23°C	3 m/s	0.3 mm	76%
24Wed	+26°C	+19°C	+23°C	3 m/s	0.1 mm	71%
25Thu	+26°C	+20°C	+23°C	3 m/s	0.3 mm	75%
26Fri	+27°C	+20°C	+23°C	2 m/s	0.5 mm	76%
27Sat	+29°C	+20°C	+23°C	3 m/s	0.6 mm	72%
28Sun	+26°C	+20°C	+23°C	3 m/s	0.7 mm	75%
29Mon	+25°C	+20°C	+23°C	3 m/s	0.6 mm	78%
30Tue	+26°C	+20°C	+24°C	4 m/s	0.1 mm	80%

Sea water temperature by months

Water +24°C

Day and night air temperature

Day +27°C Night +20°C

Weather highs and lows in Rio De Janeiro for september

Warmest day: 9 september, +31°C
Coldest night: 2 september, +19°C
Max precipitation: 22 september, 5.1 mm
Warmest sea water: 18 september, +25°C
Coldest sea water: 1 september, +22°C

Climate in Rio De Janeiro in september

Average daytime temperature: +27°C
Average nighttime temperature: +20°C
Sea water temperature: —
Precipitation (monthly average): 13.3 mm
Days with precipitation: 3.7
Humidity: 75%
Wind: 3 m/s
Data: 7 years / coverage 100%

Daily air temperature for the month

Day Night

Daily sea water temperature for the month

Water

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Mon	+25°C	+19°C	+22°C	5-7 m/s, ESE	0 mm	78%
2Tue	+25°C	+18°C	+24°C	5-7 m/s, E	0 mm	74%
3Wed	+27°C	+18°C	+23°C	4-5 m/s, ESE	0 mm	63%
4Thu	+28°C	+18°C	+23°C	3-4 m/s, ENE	0 mm	59%
5Fri	+26°C	+19°C	+23°C	3-4 m/s, SSW	0 mm	62%
6Sat	+23°C	+20°C	+23°C	3-4 m/s, SSW	0.1 mm	80%
7Sun	+20°C	+19°C	+24°C	4 m/s, ESE	1 mm	86%
8Mon	+24°C	+19°C	+24°C	5-6 m/s, ESE	0 mm	77%
9Tue	+32°C	+19°C	+23°C	3 m/s, NNW	0 mm	71%
10Wed	+23°C	+19°C	+24°C	3-4 m/s, SSW	0.3 mm	77%
11Thu	+25°C	+17°C	+24°C	3-4 m/s, ESE	0 mm	72%
12Fri	+21°C	+18°C	+24°C	3-4 m/s, SSW	0.1 mm	79%
13Sat	+20°C	+19°C	+24°C	2 m/s, ENE	0.1 mm	74%
14Sun	+23°C	+19°C	+24°C	3-6 m/s, ESE	0 mm	72%
15Mon	+25°C	+17°C	+24°C	3-6 m/s, SE	0 mm	75%
16Tue	+28°C	+19°C	+24°C	2-3 m/s, ESE	1 mm	74%
17Wed	+25°C	+20°C	+24°C	3-6 m/s, SW	0 mm	81%
18Thu	+25°C	+20°C	+25°C	2-4 m/s, SE	0.1 mm	82%
19Fri	+28°C	+19°C	+25°C	3-5 m/s, SE	0 mm	71%
20Sat	+30°C	+22°C	+23°C	2 m/s, SE	0 mm	66%
21Sun	+32°C	+22°C	+24°C	2-3 m/s, N	0 mm	60%
22Mon	+35°C	+21°C	+24°C	5-8 m/s, N	3.4 mm	60%
23Tue	+22°C	+20°C	+23°C	3-4 m/s, SSW	0.9 mm	80%
24Wed	+23°C	+19°C	+23°C	3-4 m/s, SE	0.5 mm	78%
25Thu	+19°C	+18°C	+23°C	3-4 m/s, SSW	1 mm	83%
26Fri	+21°C	+17°C	+23°C	3-4 m/s, ESE	1.4 mm	73%
27Sat	+22°C	+16°C	+23°C	4-6 m/s, SE	0 mm	61%
28Sun	+24°C	+15°C	+23°C	4-7 m/s, ESE	0 mm	63%
29Mon	+26°C	+18°C	+23°C	2-3 m/s, SSE	0 mm	63%
30Tue	+27°C	+19°C	+24°C	3-6 m/s, SE	0 mm	73%

Weather highs and lows in Rio De Janeiro for september

Warmest day: 22 september, +35°C
Coldest night: 28 september, +15°C
Max precipitation: 22 september, 3.4 mm
Warmest water: 18 september, +25°C
Coldest water: 1 september, +22°C

Climate in Rio De Janeiro in september

Year: 2025
Average daytime temperature: +25°C
Average nighttime temperature: +19°C
Water temperature: +24°C
Precipitation (month): 9.9 mm
Days with precipitation: 5
Humidity: 72%
Wind: 3 m/s

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Sun	+29°C	+19°C	—	3 m/s, E	0 mm	71%
2Mon	+25°C	+21°C	—	4-6 m/s, WSW	0.1 mm	67%
3Tue	+25°C	+20°C	—	3-4 m/s, SE	0 mm	78%
4Wed	+27°C	+19°C	—	3-4 m/s, ESE	0 mm	78%
5Thu	+32°C	+20°C	—	3-5 m/s, E	0 mm	74%
6Fri	+23°C	+21°C	—	4 m/s, W	0.3 mm	85%
7Sat	+27°C	+20°C	—	2-4 m/s, SSE	0 mm	79%
8Sun	+29°C	+22°C	—	3-5 m/s, ESE	0 mm	67%
9Mon	+29°C	+21°C	—	3-4 m/s, ESE	0 mm	69%
10Tue	+30°C	+20°C	—	3 m/s, ESE	0 mm	62%
11Wed	+33°C	+23°C	—	2-3 m/s, E	0 mm	50%
12Thu	+33°C	+23°C	—	2-3 m/s, E	0 mm	46%
13Fri	+33°C	+24°C	—	2-3 m/s, ENE	0 mm	45%
14Sat	+34°C	+22°C	—	3-5 m/s, NNE	0 mm	50%
15Sun	+27°C	+22°C	—	4 m/s, SW	0.2 mm	76%
16Mon	+26°C	+21°C	—	4-7 m/s, SW	0.2 mm	80%
17Tue	+21°C	+20°C	—	3-4 m/s, SE	0.2 mm	80%
18Wed	+24°C	+19°C	—	5-6 m/s, ESE	0 mm	75%
19Thu	+26°C	+18°C	—	4-7 m/s, ESE	0 mm	69%
20Fri	+29°C	+20°C	—	4-6 m/s, ESE	0 mm	70%
21Sat	+28°C	+21°C	—	3-4 m/s, SSE	0 mm	80%
22Sun	+28°C	+21°C	—	3-4 m/s, SE	0.1 mm	75%
23Mon	+29°C	+22°C	—	3-5 m/s, SE	0 mm	71%
24Tue	+29°C	+22°C	—	4-6 m/s, ESE	0 mm	66%
25Wed	+31°C	+22°C	—	3-5 m/s, E	0 mm	60%
26Thu	+33°C	+23°C	—	3-4 m/s, E	0 mm	56%
27Fri	+30°C	+22°C	—	4-5 m/s, SSW	0 mm	64%
28Sat	+22°C	+21°C	—	3-4 m/s, SSE	0.1 mm	83%
29Sun	+25°C	+21°C	—	4-6 m/s, ESE	0 mm	69%
30Mon	+28°C	+19°C	—	4-6 m/s, SE	0 mm	72%

Weather highs and lows in Rio De Janeiro for september

Warmest day: 14 september, +34°C
Coldest night: 19 september, +18°C
Max precipitation: 6 september, 0.3 mm
Warmest water: —
Coldest water: —

Climate in Rio De Janeiro in september

Year: 2024
Average daytime temperature: +28°C
Average nighttime temperature: +21°C
Water temperature: —
Precipitation (month): 1.2 mm
Days with precipitation: 0
Humidity: 69%
Wind: 3 m/s

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Fri	+26°C	+19°C	—	3-5 m/s, ESE	0 mm	82%
2Sat	+28°C	+18°C	—	3-4 m/s, E	0 mm	73%
3Sun	+28°C	+21°C	—	2-3 m/s, SE	0 mm	74%
4Mon	+30°C	+22°C	—	2-3 m/s, E	0 mm	72%
5Tue	+27°C	+21°C	—	4-5 m/s, WSW	0.1 mm	77%
6Wed	+21°C	+20°C	—	3-4 m/s, S	0.7 mm	88%
7Thu	+24°C	+19°C	—	2-3 m/s, SE	0.2 mm	82%
8Fri	+28°C	+19°C	—	3-4 m/s, NE	0 mm	73%
9Sat	+29°C	+20°C	—	2-3 m/s, SE	0 mm	65%
10Sun	+26°C	+21°C	—	2-5 m/s, SW	0 mm	78%
11Mon	+28°C	+20°C	—	2-4 m/s, ESE	0 mm	73%
12Tue	+30°C	+21°C	—	3-4 m/s, E	0 mm	59%
13Wed	+31°C	+22°C	—	2-3 m/s, ENE	0 mm	61%
14Thu	+30°C	+21°C	—	4-6 m/s, SW	1.4 mm	62%
15Fri	+20°C	+18°C	—	2-3 m/s, SSE	2.5 mm	88%
16Sat	+26°C	+18°C	—	3-4 m/s, ESE	0 mm	78%
17Sun	+31°C	+21°C	—	2-3 m/s, E	0 mm	70%
18Mon	+32°C	+22°C	—	3-4 m/s, E	0 mm	63%
19Tue	+29°C	+22°C	—	2-3 m/s, SE	0 mm	60%
20Wed	+27°C	+21°C	—	2-3 m/s, SSE	0.1 mm	72%
21Thu	+28°C	+21°C	—	3-5 m/s, ESE	0 mm	74%
22Fri	+30°C	+22°C	—	2-3 m/s, SE	0 mm	64%
23Sat	+28°C	+22°C	—	2-4 m/s, SSW	0 mm	74%
24Sun	+34°C	+22°C	—	2 m/s, ESE	0 mm	66%
25Mon	+28°C	+23°C	—	3-4 m/s, SW	0 mm	72%
26Tue	+29°C	+22°C	—	3-4 m/s, SE	0.2 mm	82%
27Wed	+36°C	+24°C	—	3-6 m/s, E	0.2 mm	63%
28Thu	+23°C	+20°C	—	5-7 m/s, SW	0.6 mm	80%
29Fri	+23°C	+20°C	—	3-5 m/s, ESE	0.1 mm	75%
30Sat	+25°C	+19°C	—	5-6 m/s, ESE	0 mm	76%

Weather highs and lows in Rio De Janeiro for september

Warmest day: 27 september, +36°C
Coldest night: 2 september, +18°C
Max precipitation: 15 september, 2.5 mm
Warmest water: —
Coldest water: —

Climate in Rio De Janeiro in september

Year: 2023
Average daytime temperature: +28°C
Average nighttime temperature: +21°C
Water temperature: —
Precipitation (month): 6.1 mm
Days with precipitation: 2
Humidity: 73%
Wind: 3 m/s

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Thu	+25°C	+15°C	—	3-4 m/s, ESE	0 mm	68%
2Fri	+30°C	+15°C	—	3 m/s, NE	0 mm	60%
3Sat	+29°C	+17°C	—	4-8 m/s, SW	0 mm	61%
4Sun	+20°C	+18°C	—	5 m/s, SW	0.5 mm	84%
5Mon	+22°C	+18°C	—	2-4 m/s, ESE	0 mm	71%
6Tue	+25°C	+17°C	—	5-7 m/s, E	0 mm	65%
7Wed	+25°C	+16°C	—	3-5 m/s, SE	0 mm	66%
8Thu	+30°C	+16°C	—	3 m/s, SSE	0 mm	63%
9Fri	+35°C	+19°C	—	3-4 m/s, E	0 mm	53%
10Sat	+34°C	+20°C	—	4-6 m/s, SW	0 mm	61%
11Sun	+22°C	+19°C	—	3-4 m/s, SSE	0.1 mm	74%
12Mon	+24°C	+19°C	—	5-7 m/s, ESE	0 mm	76%
13Tue	+29°C	+18°C	—	2-3 m/s, SSE	1.7 mm	80%
14Wed	+25°C	+21°C	—	3-5 m/s, SSW	0.1 mm	83%
15Thu	+22°C	+19°C	—	2-4 m/s, SSE	1.6 mm	90%
16Fri	+19°C	+17°C	—	3-4 m/s, S	4.4 mm	94%
17Sat	+23°C	+17°C	—	4-5 m/s, SW	0.9 mm	74%
18Sun	+23°C	+15°C	—	2-3 m/s, SSE	0 mm	72%
19Mon	+26°C	+15°C	—	4-6 m/s, ESE	0 mm	73%
20Tue	+25°C	+18°C	—	3-4 m/s, SSW	0 mm	78%
21Wed	+23°C	+20°C	—	3-4 m/s, SSW	1.3 mm	92%
22Thu	+27°C	+20°C	—	2-3 m/s, SSW	1.9 mm	90%
23Fri	+21°C	+18°C	—	4-6 m/s, SW	0.2 mm	84%
24Sat	+21°C	+17°C	—	3-4 m/s, SSW	0 mm	65%
25Sun	+25°C	+17°C	—	3-5 m/s, ESE	0 mm	72%
26Mon	+26°C	+19°C	—	2-4 m/s, SSW	0 mm	82%
27Tue	+25°C	+19°C	—	2-4 m/s, S	3.7 mm	89%
28Wed	+21°C	+20°C	—	3 m/s, WSW	3 mm	94%
29Thu	+21°C	+19°C	—	4-5 m/s, SE	3.6 mm	94%
30Fri	+20°C	+18°C	—	4-5 m/s, E	0 mm	88%

Weather highs and lows in Rio De Janeiro for september

Warmest day: 9 september, +35°C
Coldest night: 1 september, +15°C
Max precipitation: 16 september, 4.4 mm
Warmest water: —
Coldest water: —

Climate in Rio De Janeiro in september

Year: 2022
Average daytime temperature: +25°C
Average nighttime temperature: +18°C
Water temperature: —
Precipitation (month): 23 mm
Days with precipitation: 8
Humidity: 77%
Wind: 3 m/s

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Wed	+24°C	+18°C	—	4-6 m/s, ESE	0.7 mm	81%
2Thu	+28°C	+18°C	—	3-4 m/s, SE	0 mm	78%
3Fri	+31°C	+19°C	—	2-3 m/s, ESE	0 mm	70%
4Sat	+31°C	+20°C	—	3-4 m/s, SE	0 mm	65%
5Sun	+28°C	+21°C	—	3-6 m/s, SSW	0 mm	82%
6Mon	+25°C	+21°C	—	2-3 m/s, SW	0 mm	83%
7Tue	+24°C	+21°C	—	4-6 m/s, E	0 mm	84%
8Wed	+30°C	+20°C	—	4 m/s, ESE	0 mm	80%
9Thu	+32°C	+22°C	—	3-4 m/s, SSW	0 mm	78%
10Fri	+27°C	+22°C	—	2 m/s, SSW	1.1 mm	87%
11Sat	+26°C	+21°C	—	2-3 m/s, S	0.1 mm	87%
12Sun	+29°C	+21°C	—	2-3 m/s, S	0 mm	85%
13Mon	+32°C	+21°C	—	3-4 m/s, E	0 mm	78%
14Tue	+37°C	+22°C	—	3 m/s, N	0 mm	58%
15Wed	+31°C	+23°C	—	4-5 m/s, SW	0 mm	77%
16Thu	+23°C	+21°C	—	3-4 m/s, SSE	0.6 mm	91%
17Fri	+24°C	+20°C	—	4-5 m/s, SE	0.1 mm	88%
18Sat	+30°C	+20°C	—	2-3 m/s, S	0 mm	76%
19Sun	+29°C	+21°C	—	2-3 m/s, SSE	0.4 mm	80%
20Mon	+30°C	+21°C	—	3-5 m/s, ESE	0 mm	79%
21Tue	+33°C	+21°C	—	4-6 m/s, SW	0.1 mm	77%
22Wed	+21°C	+19°C	—	5-6 m/s, SSW	1.3 mm	76%
23Thu	+24°C	+18°C	—	3-5 m/s, SE	0 mm	58%
24Fri	+27°C	+16°C	—	3-5 m/s, ESE	0 mm	66%
25Sat	+28°C	+19°C	—	3 m/s, SE	0 mm	74%
26Sun	+30°C	+20°C	—	2-3 m/s, SSE	0 mm	73%
27Mon	+29°C	+21°C	—	2-3 m/s, SSE	0 mm	77%
28Tue	+31°C	+21°C	—	3-4 m/s, ESE	0 mm	76%
29Wed	+31°C	+21°C	—	3-6 m/s, WSW	0.1 mm	76%
30Thu	+25°C	+20°C	—	3 m/s, SW	0.1 mm	85%

Weather highs and lows in Rio De Janeiro for september

Warmest day: 14 september, +37°C
Coldest night: 24 september, +16°C
Max precipitation: 22 september, 1.3 mm
Warmest water: —
Coldest water: —

Climate in Rio De Janeiro in september

Year: 2021
Average daytime temperature: +28°C
Average nighttime temperature: +20°C
Water temperature: —
Precipitation (month): 4.6 mm
Days with precipitation: 2
Humidity: 78%
Wind: 3 m/s

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Tue	+26°C	+21°C	—	2-4 m/s, SSE	1.1 mm	77%
2Wed	+26°C	+20°C	—	3-4 m/s, ESE	0.6 mm	76%
3Thu	+31°C	+19°C	—	3 m/s, E	0 mm	63%
4Fri	+33°C	+21°C	—	3-5 m/s, WNW	0 mm	60%
5Sat	+28°C	+21°C	—	3 m/s, SSW	0 mm	78%
6Sun	+31°C	+20°C	—	2 m/s, SE	0 mm	72%
7Mon	+28°C	+22°C	—	2-3 m/s, SSW	0 mm	76%
8Tue	+28°C	+21°C	—	2-3 m/s, SSW	0 mm	80%
9Wed	+29°C	+22°C	—	3-5 m/s, ESE	0 mm	75%
10Thu	+32°C	+22°C	—	2-3 m/s, ESE	0 mm	72%
11Fri	+29°C	+22°C	—	3-4 m/s, SW	0 mm	77%
12Sat	+34°C	+23°C	—	2-3 m/s, ESE	0 mm	68%
13Sun	+32°C	+22°C	—	3-5 m/s, ESE	0 mm	51%
14Mon	+35°C	+22°C	—	2 m/s, NE	0 mm	51%
15Tue	+24°C	+22°C	—	5-6 m/s, S	0.7 mm	80%
16Wed	+29°C	+22°C	—	3-4 m/s, ESE	0 mm	76%
17Thu	+33°C	+21°C	—	3-5 m/s, E	0 mm	64%
18Fri	+30°C	+22°C	—	2-4 m/s, SSE	0 mm	77%
19Sat	+34°C	+24°C	—	3-4 m/s, ESE	0 mm	66%
20Sun	+24°C	+22°C	—	4 m/s, SW	2.6 mm	80%
21Mon	+24°C	+20°C	—	3-4 m/s, SE	4.9 mm	90%
22Tue	+21°C	+20°C	—	7 m/s, ESE	26.1 mm	90%
23Wed	+22°C	+20°C	—	4-5 m/s, E	0 mm	86%
24Thu	+25°C	+20°C	—	4-5 m/s, E	0 mm	82%
25Fri	+28°C	+21°C	—	3 m/s, SE	0 mm	79%
26Sat	+31°C	+21°C	—	2-3 m/s, ESE	0 mm	74%
27Sun	+35°C	+23°C	—	2-3 m/s, ENE	0 mm	63%
28Mon	+38°C	+24°C	—	2-3 m/s, NNW	0 mm	48%
29Tue	+26°C	+23°C	—	4 m/s, SE	0 mm	80%
30Wed	+31°C	+23°C	—	3-4 m/s, ESE	0 mm	80%

Weather highs and lows in Rio De Janeiro for september

Warmest day: 28 september, +38°C
Coldest night: 3 september, +19°C
Max precipitation: 22 september, 26.1 mm
Warmest water: —
Coldest water: —

Climate in Rio De Janeiro in september

Year: 2020
Average daytime temperature: +29°C
Average nighttime temperature: +22°C
Water temperature: —
Precipitation (month): 36 mm
Days with precipitation: 4
Humidity: 73%
Wind: 3 m/s

Daily air temperature for the month

Day Night

Tap a date to open detailed weather for that day

September	Day	Night	Sea t°	Wind	Precip	Humidity
1Sun	+26°C	+21°C	—	3-4 m/s, SW	0 mm	82%
2Mon	+26°C	+21°C	—	3 m/s, ENE	0.5 mm	88%
3Tue	+28°C	+21°C	—	3-4 m/s, ESE	0 mm	88%
4Wed	+23°C	+20°C	—	3-4 m/s, SSW	0.2 mm	93%
5Thu	+20°C	+18°C	—	4-6 m/s, SE	1.4 mm	92%
6Fri	+21°C	+18°C	—	4-5 m/s, E	0.5 mm	86%
7Sat	+25°C	+18°C	—	4-5 m/s, E	0 mm	82%
8Sun	+28°C	+19°C	—	3-4 m/s, E	0 mm	80%
9Mon	+30°C	+20°C	—	3-4 m/s, NE	0 mm	76%
10Tue	+32°C	+20°C	—	3 m/s, E	0 mm	68%
11Wed	+30°C	+23°C	—	2-3 m/s, SSE	0 mm	71%
12Thu	+35°C	+22°C	—	2-3 m/s, NE	0 mm	66%
13Fri	+27°C	+21°C	—	4-6 m/s, SW	0.2 mm	85%
14Sat	+23°C	+21°C	—	3-5 m/s, SE	0.7 mm	92%
15Sun	+28°C	+20°C	—	4-6 m/s, ESE	0.1 mm	85%
16Mon	+30°C	+21°C	—	3-4 m/s, E	0 mm	78%
17Tue	+34°C	+21°C	—	2 m/s, SE	0 mm	69%
18Wed	+36°C	+23°C	—	2-3 m/s, NNW	0 mm	67%
19Thu	+29°C	+22°C	—	3-4 m/s, SE	0 mm	82%
20Fri	+30°C	+23°C	—	2 m/s, SSE	0 mm	82%
21Sat	+24°C	+21°C	—	3-4 m/s, SSW	0 mm	92%
22Sun	+21°C	+19°C	—	4-5 m/s, S	3 mm	94%
23Mon	+21°C	+17°C	—	5 m/s, SE	1 mm	77%
24Tue	+22°C	+17°C	—	5-6 m/s, ESE	0 mm	76%
25Wed	+21°C	+18°C	—	2 m/s, ENE	0.9 mm	87%
26Thu	+21°C	+19°C	—	2-3 m/s, ENE	1.9 mm	92%
27Fri	+23°C	+18°C	—	3-5 m/s, SW	0.4 mm	88%
28Sat	+24°C	+19°C	—	3-4 m/s, SSE	1 mm	82%
29Sun	+22°C	+19°C	—	4 m/s, ESE	0.4 mm	88%
30Mon	+23°C	+19°C	—	5-6 m/s, ESE	0.3 mm	84%

Weather highs and lows in Rio De Janeiro for september

Warmest day: 18 september, +36°C
Coldest night: 23 september, +17°C
Max precipitation: 22 september, 3 mm
Warmest water: —
Coldest water: —

Climate in Rio De Janeiro in september

Year: 2019
Average daytime temperature: +26°C
Average nighttime temperature: +20°C
Water temperature: —
Precipitation (month): 12.5 mm
Days with precipitation: 5
Humidity: 82%
Wind: 3 m/s

Weather in Rio De Janeiro in september by year

Year	Day	Night	Precipitation	Days with precipitation	Water
2025	+25°C	+19°C	9.9 mm	5	+24°C
2024	+28°C	+21°C	1.2 mm	0	—
2023	+28°C	+21°C	6.1 mm	2	—
2022	+25°C	+18°C	23 mm	8	—
2021	+28°C	+20°C	4.6 mm	2	—
2020	+29°C	+22°C	36 mm	4	—
2019	+26°C	+20°C	12.5 mm	5	—

Comparison september in Rio De Janeiro with other months

Month	Day	Night	Days with precipitation	Sunny days
January	+30°C	+24°C	6	10
February	+30°C	+24°C	7	8
March	+30°C	+24°C	5	10
April	+28°C	+22°C	4	11
May	+27°C	+20°C	3	16
June	+26°C	+19°C	2	17
July	+25°C	+18°C	2	20
August	+26°C	+18°C	3	18
September	+27°C	+20°C	4	15
October	+27°C	+21°C	6	7
November	+27°C	+21°C	7	8
December	+28°C	+23°C	8	7