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September

Santos Weather in September with Sea Temperature

September weather in Santos includes average daytime air +24°C, nighttime +18°C, average sea temperature +22°C. Daily water temperatures usually range from +21°C to +22°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	+24°C	+17°C	+21°C	2 m/s	0.4 mm	80%
2Tue	+25°C	+17°C	+21°C	3 m/s	0.2 mm	79%
3Wed	+26°C	+18°C	+21°C	2 m/s	0.5 mm	79%
4Thu	+24°C	+18°C	+21°C	2 m/s	0.2 mm	75%
5Fri	+23°C	+17°C	+21°C	3 m/s	0.7 mm	82%
6Sat	+22°C	+18°C	+21°C	3 m/s	1.2 mm	89%
7Sun	+24°C	+18°C	+21°C	3 m/s	0.4 mm	87%
8Mon	+27°C	+19°C	+21°C	2 m/s	0 mm	81%
9Tue	+27°C	+20°C	+21°C	2 m/s	0.1 mm	72%
10Wed	+25°C	+19°C	+21°C	2 m/s	0.3 mm	76%
11Thu	+25°C	+19°C	+22°C	2 m/s	0.1 mm	77%
12Fri	+28°C	+19°C	+22°C	2 m/s	0.1 mm	69%
13Sat	+26°C	+19°C	+22°C	2 m/s	0.3 mm	74%
14Sun	+25°C	+19°C	+21°C	3 m/s	0.4 mm	76%
15Mon	+22°C	+19°C	+21°C	3 m/s	1 mm	88%
16Tue	+24°C	+18°C	+21°C	2 m/s	2.2 mm	85%
17Wed	+24°C	+19°C	+21°C	3 m/s	0.5 mm	79%
18Thu	+25°C	+19°C	+21°C	2 m/s	0 mm	81%
19Fri	+25°C	+19°C	+22°C	2 m/s	0.2 mm	82%
20Sat	+25°C	+18°C	+22°C	2 m/s	0.5 mm	84%
21Sun	+24°C	+19°C	+22°C	3 m/s	1.3 mm	85%
22Mon	+23°C	+18°C	+22°C	3 m/s	2.6 mm	85%
23Tue	+22°C	+17°C	+22°C	3 m/s	0.5 mm	79%
24Wed	+24°C	+17°C	+22°C	2 m/s	0.2 mm	77%
25Thu	+23°C	+18°C	+22°C	3 m/s	0.4 mm	83%
26Fri	+24°C	+19°C	+22°C	2 m/s	0.4 mm	83%
27Sat	+25°C	+18°C	+22°C	3 m/s	0.3 mm	79%
28Sun	+23°C	+19°C	+22°C	3 m/s	1.6 mm	79%
29Mon	+23°C	+18°C	+22°C	3 m/s	0.5 mm	84%
30Tue	+24°C	+19°C	+22°C	2 m/s	0.4 mm	84%

Sea water temperature by months

Water +22°C

Day and night air temperature

Day +24°C Night +18°C

Weather highs and lows in Santos for september

Warmest day: 12 september, +28°C
Coldest night: 2 september, +17°C
Max precipitation: 22 september, 2.6 mm
Warmest sea water: 11 september, +22°C
Coldest sea water: 1 september, +21°C

Climate in Santos in september

Average daytime temperature: +24°C
Average nighttime temperature: +18°C
Sea water temperature: —
Precipitation (monthly average): 17.7 mm
Days with precipitation: 6.1
Humidity: 80%
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	+24°C	+18°C	+21°C	3-5 m/s, SE	0 mm	83%
2Tue	+24°C	+18°C	+21°C	2-4 m/s, SE	0 mm	82%
3Wed	+25°C	+18°C	+21°C	2-3 m/s, SE	0 mm	76%
4Thu	+27°C	+18°C	+21°C	2 m/s, S	0 mm	61%
5Fri	+23°C	+15°C	+21°C	3-4 m/s, SSW	0 mm	76%
6Sat	+19°C	+18°C	+21°C	4-5 m/s, SSW	1 mm	91%
7Sun	+19°C	+18°C	+21°C	5-6 m/s, ESE	1.2 mm	91%
8Mon	+25°C	+19°C	+21°C	3-4 m/s, E	0 mm	84%
9Tue	+24°C	+20°C	+21°C	3-6 m/s, SW	0 mm	76%
10Wed	+22°C	+18°C	+21°C	2-4 m/s, SE	0.1 mm	80%
11Thu	+25°C	+16°C	+22°C	2-3 m/s, SE	0 mm	76%
12Fri	+21°C	+17°C	+22°C	3 m/s, S	0.3 mm	79%
13Sat	+21°C	+18°C	+22°C	3-5 m/s, SE	0.4 mm	77%
14Sun	+23°C	+17°C	+21°C	4-5 m/s, ESE	0.2 mm	80%
15Mon	+24°C	+17°C	+21°C	2-3 m/s, SSE	0 mm	79%
16Tue	+24°C	+18°C	+21°C	3-4 m/s, SSW	0 mm	83%
17Wed	+22°C	+18°C	+21°C	2-3 m/s, SW	0.2 mm	89%
18Thu	+23°C	+17°C	+21°C	2-3 m/s, SSE	0 mm	84%
19Fri	+25°C	+17°C	+22°C	2 m/s, SSE	0 mm	82%
20Sat	+27°C	+17°C	+22°C	2-3 m/s, SSW	0 mm	74%
21Sun	+33°C	+20°C	+22°C	3 m/s, NNW	0.1 mm	58%
22Mon	+28°C	+19°C	+22°C	3-4 m/s, NW	2.2 mm	79%
23Tue	+20°C	+18°C	+22°C	4-8 m/s, ESE	2.9 mm	80%
24Wed	+21°C	+18°C	+22°C	4-6 m/s, ESE	1.1 mm	84%
25Thu	+18°C	+17°C	+22°C	5 m/s, ESE	1.2 mm	83%
26Fri	+19°C	+16°C	+22°C	5-6 m/s, ESE	0.4 mm	75%
27Sat	+22°C	+15°C	+22°C	4-5 m/s, ESE	0 mm	70%
28Sun	+23°C	+15°C	+22°C	2-4 m/s, ESE	0 mm	73%
29Mon	+24°C	+17°C	+22°C	2-4 m/s, SSW	0 mm	74%
30Tue	+25°C	+18°C	+22°C	2-3 m/s, SE	0 mm	81%

Weather highs and lows in Santos for september

Warmest day: 21 september, +33°C
Coldest night: 5 september, +15°C
Max precipitation: 23 september, 2.9 mm
Warmest water: 11 september, +22°C
Coldest water: 1 september, +21°C

Climate in Santos in september

Year: 2025
Average daytime temperature: +23°C
Average nighttime temperature: +18°C
Water temperature: +22°C
Precipitation (month): 11.3 mm
Days with precipitation: 6
Humidity: 79%
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	+28°C	+17°C	—	1-2 m/s, E	0 mm	65%
2Mon	+23°C	+15°C	—	3-4 m/s, SSW	0 mm	73%
3Tue	+25°C	+19°C	—	2 m/s, SE	0 mm	81%
4Wed	+25°C	+17°C	—	2-3 m/s, SSW	0 mm	74%
5Thu	+22°C	+18°C	—	4-7 m/s, SW	0.5 mm	78%
6Fri	+20°C	+18°C	—	2-4 m/s, SSE	2.8 mm	95%
7Sat	+26°C	+17°C	—	1-2 m/s, S	0 mm	83%
8Sun	+27°C	+19°C	—	1-2 m/s, SSW	0 mm	72%
9Mon	+27°C	+19°C	—	2-3 m/s, S	0 mm	58%
10Tue	+26°C	+17°C	—	1-3 m/s, SW	0 mm	66%
11Wed	+32°C	+19°C	—	2 m/s, NNW	0 mm	50%
12Thu	+33°C	+20°C	—	3-4 m/s, N	0 mm	38%
13Fri	+29°C	+20°C	—	2-4 m/s, SW	0 mm	51%
14Sat	+25°C	+19°C	—	2-4 m/s, SW	0 mm	58%
15Sun	+24°C	+21°C	—	3-4 m/s, ESE	2.5 mm	90%
16Mon	+20°C	+18°C	—	3-4 m/s, SSW	8.4 mm	94%
17Tue	+20°C	+19°C	—	3-5 m/s, ESE	0.6 mm	88%
18Wed	+22°C	+18°C	—	3-5 m/s, ESE	0 mm	85%
19Thu	+23°C	+18°C	—	2 m/s, S	0 mm	82%
20Fri	+27°C	+18°C	—	2-5 m/s, SE	0 mm	81%
21Sat	+25°C	+19°C	—	2-3 m/s, WSW	0 mm	89%
22Sun	+26°C	+18°C	—	2 m/s, SE	0 mm	82%
23Mon	+26°C	+19°C	—	1-3 m/s, SSW	0 mm	79%
24Tue	+26°C	+19°C	—	2-3 m/s, SSW	0 mm	79%
25Wed	+28°C	+19°C	—	2 m/s, SSW	0 mm	72%
26Thu	+28°C	+19°C	—	2 m/s, SSW	0 mm	66%
27Fri	+24°C	+18°C	—	3-5 m/s, SW	0.1 mm	76%
28Sat	+21°C	+19°C	—	3-4 m/s, ESE	0.2 mm	85%
29Sun	+24°C	+18°C	—	3-4 m/s, SE	0 mm	79%
30Mon	+26°C	+19°C	—	2-3 m/s, SSE	0 mm	80%

Weather highs and lows in Santos for september

Warmest day: 12 september, +33°C
Coldest night: 2 september, +15°C
Max precipitation: 16 september, 8.4 mm
Warmest water: —
Coldest water: —

Climate in Santos in september

Year: 2024
Average daytime temperature: +25°C
Average nighttime temperature: +18°C
Water temperature: —
Precipitation (month): 15.1 mm
Days with precipitation: 3
Humidity: 75%
Wind: 2 m/s

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Fri	+23°C	+17°C	—	2 m/s, SSE	0 mm	78%
2Sat	+27°C	+18°C	—	2 m/s, E	0 mm	77%
3Sun	+28°C	+19°C	—	2-4 m/s, NE	1.5 mm	82%
4Mon	+31°C	+20°C	—	2-3 m/s, NE	0 mm	72%
5Tue	+24°C	+18°C	—	4-5 m/s, SW	0.6 mm	80%
6Wed	+20°C	+19°C	—	3-4 m/s, ESE	3 mm	88%
7Thu	+24°C	+19°C	—	4-6 m/s, ESE	0 mm	85%
8Fri	+27°C	+18°C	—	2-3 m/s, E	0 mm	76%
9Sat	+27°C	+17°C	—	1-2 m/s, S	0 mm	72%
10Sun	+24°C	+18°C	—	2 m/s, SE	0.2 mm	87%
11Mon	+26°C	+19°C	—	1-2 m/s, SE	0.2 mm	82%
12Tue	+29°C	+19°C	—	2-3 m/s, E	0 mm	58%
13Wed	+28°C	+19°C	—	2-3 m/s, SSW	0 mm	62%
14Thu	+25°C	+19°C	—	3-5 m/s, SW	0.7 mm	72%
15Fri	+18°C	+18°C	—	2-3 m/s, SE	0.1 mm	84%
16Sat	+25°C	+17°C	—	2 m/s, SE	0 mm	78%
17Sun	+27°C	+18°C	—	2 m/s, SSW	0 mm	70%
18Mon	+30°C	+20°C	—	2 m/s, ESE	0 mm	62%
19Tue	+27°C	+19°C	—	2-3 m/s, SSW	0 mm	75%
20Wed	+26°C	+19°C	—	2-3 m/s, S	0.1 mm	83%
21Thu	+26°C	+19°C	—	1-2 m/s, S	0.3 mm	83%
22Fri	+28°C	+19°C	—	1-2 m/s, S	0 mm	75%
23Sat	+27°C	+18°C	—	2 m/s, S	0 mm	81%
24Sun	+32°C	+19°C	—	1-2 m/s, ESE	0 mm	64%
25Mon	+26°C	+19°C	—	4 m/s, SSW	1 mm	89%
26Tue	+28°C	+22°C	—	3-4 m/s, SSE	0.3 mm	86%
27Wed	+31°C	+20°C	—	3-6 m/s, SW	0.4 mm	74%
28Thu	+21°C	+18°C	—	4-5 m/s, SSE	1.1 mm	80%
29Fri	+23°C	+19°C	—	4-5 m/s, ESE	0.1 mm	83%
30Sat	+24°C	+19°C	—	2-4 m/s, SSE	0 mm	81%

Weather highs and lows in Santos for september

Warmest day: 24 september, +32°C
Coldest night: 1 september, +17°C
Max precipitation: 6 september, 3 mm
Warmest water: —
Coldest water: —

Climate in Santos in september

Year: 2023
Average daytime temperature: +26°C
Average nighttime temperature: +19°C
Water temperature: —
Precipitation (month): 9.6 mm
Days with precipitation: 4
Humidity: 77%
Wind: 2 m/s

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Thu	+24°C	+14°C	—	2 m/s, SW	0 mm	70%
2Fri	+29°C	+15°C	—	2 m/s, WSW	0 mm	63%
3Sat	+22°C	+16°C	—	4-5 m/s, SW	1.4 mm	76%
4Sun	+18°C	+16°C	—	3-4 m/s, S	1.2 mm	81%
5Mon	+21°C	+16°C	—	2-3 m/s, ESE	0 mm	78%
6Tue	+21°C	+18°C	—	3-4 m/s, ESE	0 mm	84%
7Wed	+23°C	+17°C	—	2-3 m/s, E	1.7 mm	88%
8Thu	+29°C	+16°C	—	2-3 m/s, WSW	0 mm	77%
9Fri	+35°C	+20°C	—	2-4 m/s, NE	0 mm	56%
10Sat	+23°C	+18°C	—	4-6 m/s, SW	1 mm	68%
11Sun	+19°C	+17°C	—	3-4 m/s, ESE	0.6 mm	83%
12Mon	+22°C	+17°C	—	3-4 m/s, E	0.1 mm	86%
13Tue	+25°C	+18°C	—	2-3 m/s, SE	0.3 mm	86%
14Wed	+21°C	+18°C	—	2 m/s, SE	1 mm	94%
15Thu	+19°C	+17°C	—	3-4 m/s, SSW	0.9 mm	95%
16Fri	+19°C	+17°C	—	2-3 m/s, SSE	4 mm	87%
17Sat	+21°C	+15°C	—	3-4 m/s, SSE	1.6 mm	73%
18Sun	+21°C	+14°C	—	3-5 m/s, E	0 mm	78%
19Mon	+23°C	+15°C	—	2-3 m/s, E	0 mm	78%
20Tue	+22°C	+17°C	—	2-3 m/s, W	0.9 mm	86%
21Wed	+20°C	+18°C	—	3 m/s, SW	0.3 mm	95%
22Thu	+22°C	+19°C	—	2-3 m/s, WSW	1.3 mm	93%
23Fri	+20°C	+15°C	—	4-6 m/s, SSW	0 mm	78%
24Sat	+21°C	+14°C	—	2-4 m/s, E	0 mm	69%
25Sun	+22°C	+15°C	—	2-3 m/s, E	0 mm	76%
26Mon	+21°C	+18°C	—	2 m/s, WNW	1.8 mm	94%
27Tue	+23°C	+18°C	—	2-3 m/s, WSW	0 mm	86%
28Wed	+20°C	+19°C	—	3-4 m/s, WSW	7 mm	96%
29Thu	+20°C	+18°C	—	4-6 m/s, SSE	2.1 mm	97%
30Fri	+19°C	+18°C	—	4-5 m/s, E	2.3 mm	92%

Weather highs and lows in Santos for september

Warmest day: 9 september, +35°C
Coldest night: 1 september, +14°C
Max precipitation: 28 september, 7 mm
Warmest water: —
Coldest water: —

Climate in Santos in september

Year: 2022
Average daytime temperature: +22°C
Average nighttime temperature: +17°C
Water temperature: —
Precipitation (month): 29.5 mm
Days with precipitation: 12
Humidity: 82%
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	+25°C	+17°C	—	2-3 m/s, ENE	0 mm	82%
2Thu	+25°C	+17°C	—	2 m/s, SW	0 mm	81%
3Fri	+29°C	+18°C	—	1-2 m/s, ENE	0 mm	71%
4Sat	+25°C	+18°C	—	2 m/s, W	0.1 mm	69%
5Sun	+28°C	+18°C	—	2 m/s, S	0.1 mm	80%
6Mon	+22°C	+19°C	—	2 m/s, SSW	1.3 mm	90%
7Tue	+24°C	+20°C	—	3-5 m/s, E	0 mm	87%
8Wed	+29°C	+20°C	—	3-4 m/s, E	0 mm	86%
9Thu	+24°C	+20°C	—	3 m/s, W	0.5 mm	91%
10Fri	+23°C	+20°C	—	2-3 m/s, SE	0.9 mm	88%
11Sat	+23°C	+19°C	—	1-2 m/s, SE	0 mm	88%
12Sun	+24°C	+18°C	—	2 m/s, SSE	0 mm	90%
13Mon	+29°C	+19°C	—	1-3 m/s, ESE	0 mm	81%
14Tue	+30°C	+21°C	—	2-4 m/s, SW	0 mm	74%
15Wed	+23°C	+20°C	—	3-4 m/s, SSW	1.3 mm	91%
16Thu	+21°C	+19°C	—	4 m/s, SSE	2.7 mm	93%
17Fri	+22°C	+20°C	—	5 m/s, E	0.3 mm	92%
18Sat	+26°C	+20°C	—	2 m/s, E	0 mm	88%
19Sun	+26°C	+20°C	—	1-2 m/s, SSE	0.1 mm	88%
20Mon	+28°C	+20°C	—	1-2 m/s, ENE	0.1 mm	86%
21Tue	+26°C	+19°C	—	4-6 m/s, SW	0.6 mm	86%
22Wed	+19°C	+18°C	—	4 m/s, SSE	0.9 mm	80%
23Thu	+22°C	+17°C	—	4 m/s, ESE	0 mm	68%
24Fri	+23°C	+16°C	—	2 m/s, SSW	0 mm	75%
25Sat	+23°C	+18°C	—	2 m/s, SSW	0.1 mm	83%
26Sun	+24°C	+18°C	—	1-2 m/s, SW	0 mm	83%
27Mon	+25°C	+18°C	—	1-2 m/s, SW	0 mm	84%
28Tue	+27°C	+19°C	—	2 m/s, SSW	0 mm	79%
29Wed	+25°C	+19°C	—	2-3 m/s, SSW	0.3 mm	78%
30Thu	+24°C	+19°C	—	1-3 m/s, S	0.3 mm	86%

Weather highs and lows in Santos for september

Warmest day: 14 september, +30°C
Coldest night: 24 september, +16°C
Max precipitation: 16 september, 2.7 mm
Warmest water: —
Coldest water: —

Climate in Santos in september

Year: 2021
Average daytime temperature: +25°C
Average nighttime temperature: +19°C
Water temperature: —
Precipitation (month): 9.6 mm
Days with precipitation: 3
Humidity: 83%
Wind: 2 m/s

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Tue	+22°C	+20°C	—	4 m/s, ESE	0.7 mm	92%
2Wed	+24°C	+20°C	—	4 m/s, E	0.1 mm	90%
3Thu	+30°C	+20°C	—	2 m/s, ESE	0 mm	77%
4Fri	+24°C	+19°C	—	3-6 m/s, SW	0.1 mm	76%
5Sat	+25°C	+20°C	—	2-3 m/s, SSE	0.3 mm	87%
6Sun	+28°C	+20°C	—	2 m/s, S	0 mm	86%
7Mon	+24°C	+19°C	—	2 m/s, SSW	0.2 mm	88%
8Tue	+23°C	+20°C	—	2 m/s, SW	0.3 mm	89%
9Wed	+25°C	+20°C	—	1-2 m/s, SSW	0 mm	86%
10Thu	+27°C	+21°C	—	1-3 m/s, SW	0 mm	87%
11Fri	+25°C	+20°C	—	2 m/s, SSW	0 mm	88%
12Sat	+31°C	+22°C	—	2 m/s, ESE	0 mm	74%
13Sun	+28°C	+20°C	—	2 m/s, SSE	0.1 mm	69%
14Mon	+31°C	+19°C	—	3-4 m/s, W	0.1 mm	65%
15Tue	+21°C	+17°C	—	4-5 m/s, SE	2.2 mm	86%
16Wed	+27°C	+18°C	—	2-3 m/s, ESE	0 mm	82%
17Thu	+26°C	+21°C	—	2-5 m/s, S	0.5 mm	78%
18Fri	+26°C	+21°C	—	3-5 m/s, SSE	0 mm	87%
19Sat	+25°C	+21°C	—	2 m/s, SW	0 mm	83%
20Sun	+22°C	+17°C	—	3-5 m/s, SSE	2.4 mm	93%
21Mon	+20°C	+18°C	—	4-5 m/s, SE	4.2 mm	92%
22Tue	+18°C	+15°C	—	4 m/s, SE	7.1 mm	93%
23Wed	+21°C	+17°C	—	4-6 m/s, ESE	0.3 mm	92%
24Thu	+24°C	+18°C	—	2 m/s, SSE	0 mm	87%
25Fri	+25°C	+19°C	—	2 m/s, SSW	0 mm	86%
26Sat	+26°C	+19°C	—	1-2 m/s, S	0 mm	85%
27Sun	+30°C	+21°C	—	2-3 m/s, SSW	0 mm	72%
28Mon	+31°C	+22°C	—	3-4 m/s, WNW	0.3 mm	54%
29Tue	+23°C	+20°C	—	4 m/s, SE	1.1 mm	92%
30Wed	+29°C	+20°C	—	2-3 m/s, SE	0 mm	87%

Weather highs and lows in Santos for september

Warmest day: 12 september, +31°C
Coldest night: 22 september, +15°C
Max precipitation: 22 september, 7.1 mm
Warmest water: —
Coldest water: —

Climate in Santos in september

Year: 2020
Average daytime temperature: +25°C
Average nighttime temperature: +20°C
Water temperature: —
Precipitation (month): 20 mm
Days with precipitation: 5
Humidity: 83%
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	+22°C	+19°C	—	2-3 m/s, SSE	2.4 mm	88%
2Mon	+21°C	+17°C	—	3 m/s, SW	1.6 mm	90%
3Tue	+22°C	+19°C	—	3-4 m/s, S	0.3 mm	91%
4Wed	+20°C	+19°C	—	3-4 m/s, SW	0.3 mm	93%
5Thu	+19°C	+17°C	—	4-5 m/s, SE	3.3 mm	92%
6Fri	+21°C	+17°C	—	4-5 m/s, E	0.4 mm	89%
7Sat	+26°C	+19°C	—	2 m/s, E	0 mm	85%
8Sun	+28°C	+21°C	—	1 m/s, SSE	0 mm	82%
9Mon	+30°C	+22°C	—	2 m/s, NE	0 mm	67%
10Tue	+32°C	+22°C	—	2 m/s, ESE	0 mm	59%
11Wed	+27°C	+20°C	—	2 m/s, SSW	0 mm	74%
12Thu	+33°C	+19°C	—	2 m/s, ESE	0 mm	61%
13Fri	+20°C	+19°C	—	3-5 m/s, SSW	1.6 mm	93%
14Sat	+22°C	+20°C	—	2-4 m/s, ESE	1 mm	92%
15Sun	+26°C	+20°C	—	2-3 m/s, ESE	0.1 mm	88%
16Mon	+30°C	+22°C	—	1 m/s, S	0 mm	79%
17Tue	+30°C	+21°C	—	3-5 m/s, SW	0 mm	66%
18Wed	+27°C	+21°C	—	2-3 m/s, SSE	0.1 mm	80%
19Thu	+26°C	+21°C	—	2-3 m/s, E	1.3 mm	85%
20Fri	+26°C	+19°C	—	2-3 m/s, WSW	0 mm	87%
21Sat	+20°C	+19°C	—	3-4 m/s, S	3.8 mm	92%
22Sun	+20°C	+18°C	—	3-4 m/s, SSE	6.5 mm	92%
23Mon	+19°C	+17°C	—	5-6 m/s, ESE	0.3 mm	78%
24Tue	+22°C	+17°C	—	3-4 m/s, SE	0.1 mm	80%
25Wed	+22°C	+19°C	—	2 m/s, E	0.7 mm	89%
26Thu	+21°C	+19°C	—	2-3 m/s, SW	0.2 mm	91%
27Fri	+21°C	+18°C	—	3-5 m/s, SW	1.6 mm	88%
28Sat	+21°C	+18°C	—	3 m/s, SE	2.9 mm	86%
29Sun	+22°C	+18°C	—	2-4 m/s, ESE	0 mm	84%
30Mon	+24°C	+18°C	—	2-4 m/s, S	0 mm	83%

Weather highs and lows in Santos for september

Warmest day: 12 september, +33°C
Coldest night: 2 september, +17°C
Max precipitation: 22 september, 6.5 mm
Warmest water: —
Coldest water: —

Climate in Santos in september

Year: 2019
Average daytime temperature: +24°C
Average nighttime temperature: +19°C
Water temperature: —
Precipitation (month): 28.5 mm
Days with precipitation: 10
Humidity: 83%
Wind: 3 m/s

Weather in Santos in september by year

Year	Day	Night	Precipitation	Days with precipitation	Water
2025	+23°C	+18°C	11.3 mm	6	+22°C
2024	+25°C	+18°C	15.1 mm	3	—
2023	+26°C	+19°C	9.6 mm	4	—
2022	+22°C	+17°C	29.5 mm	12	—
2021	+25°C	+19°C	9.6 mm	3	—
2020	+25°C	+20°C	20 mm	5	—
2019	+24°C	+19°C	28.5 mm	10	—

Comparison september in Santos with other months

Month	Day	Night	Days with precipitation	Sunny days
January	+29°C	+23°C	11	4
February	+28°C	+23°C	10	4
March	+28°C	+23°C	8	4
April	+26°C	+21°C	8	6
May	+25°C	+19°C	5	15
June	+24°C	+18°C	6	15
July	+23°C	+17°C	4	17
August	+23°C	+17°C	6	16
September	+24°C	+18°C	6	12
October	+24°C	+20°C	10	4
November	+25°C	+20°C	9	5
December	+27°C	+21°C	9	5