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September

Itajai Weather in September with Sea Temperature

September weather in Itajai includes average daytime air +22°C, nighttime +16°C, average sea temperature +20°C. Daily water temperatures usually range from +19°C to +20°C, which is cool for long swims. 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	+21°C	+16°C	+19°C	2 m/s	1.4 mm	90%
2Tue	+20°C	+16°C	+19°C	2 m/s	0.6 mm	88%
3Wed	+22°C	+16°C	+19°C	2 m/s	1.2 mm	89%
4Thu	+21°C	+15°C	+19°C	2 m/s	0.1 mm	86%
5Fri	+20°C	+14°C	+19°C	3 m/s	0.5 mm	83%
6Sat	+18°C	+14°C	+20°C	2 m/s	0.9 mm	88%
7Sun	+20°C	+16°C	+20°C	3 m/s	0.4 mm	91%
8Mon	+22°C	+17°C	+20°C	2 m/s	0.5 mm	91%
9Tue	+25°C	+17°C	+20°C	2 m/s	0.3 mm	87%
10Wed	+23°C	+16°C	+20°C	2 m/s	0.1 mm	86%
11Thu	+23°C	+15°C	+20°C	2 m/s	0 mm	86%
12Fri	+23°C	+16°C	+20°C	2 m/s	0.8 mm	87%
13Sat	+22°C	+16°C	+20°C	2 m/s	0.1 mm	87%
14Sun	+22°C	+16°C	+20°C	2 m/s	0.7 mm	86%
15Mon	+18°C	+14°C	+20°C	2 m/s	1.2 mm	86%
16Tue	+21°C	+15°C	+20°C	2 m/s	0.9 mm	86%
17Wed	+22°C	+16°C	+19°C	2 m/s	1 mm	88%
18Thu	+23°C	+17°C	+20°C	2 m/s	0.6 mm	86%
19Fri	+23°C	+17°C	+20°C	2 m/s	0.6 mm	89%
20Sat	+23°C	+17°C	+20°C	3 m/s	0.6 mm	87%
21Sun	+22°C	+16°C	+20°C	2 m/s	0.9 mm	86%
22Mon	+22°C	+15°C	+20°C	3 m/s	0.2 mm	83%
23Tue	+22°C	+15°C	+20°C	2 m/s	0 mm	76%
24Wed	+22°C	+16°C	+20°C	2 m/s	0.1 mm	83%
25Thu	+22°C	+16°C	+20°C	2 m/s	0.1 mm	85%
26Fri	+22°C	+17°C	+20°C	2 m/s	0.7 mm	87%
27Sat	+23°C	+17°C	+20°C	2 m/s	2.2 mm	85%
28Sun	+21°C	+16°C	+20°C	3 m/s	0 mm	82%
29Mon	+21°C	+16°C	+20°C	2 m/s	0.5 mm	85%
30Tue	+21°C	+17°C	+20°C	2 m/s	0.3 mm	90%

Sea water temperature by months

Water +20°C

Day and night air temperature

Day +22°C Night +16°C

Weather highs and lows in Itajai for september

Warmest day: 9 september, +25°C
Coldest night: 5 september, +14°C
Max precipitation: 27 september, 2.2 mm
Warmest sea water: 6 september, +20°C
Coldest sea water: 1 september, +19°C

Climate in Itajai in september

Average daytime temperature: +22°C
Average nighttime temperature: +16°C
Sea water temperature: —
Precipitation (monthly average): 17.4 mm
Days with precipitation: 5.4
Humidity: 86%
Wind: 2 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	+21°C	+18°C	+19°C	4-5 m/s, ENE	1.4 mm	94%
2Tue	+20°C	+18°C	+19°C	3-4 m/s, NE	0.6 mm	96%
3Wed	+22°C	+17°C	+19°C	2-3 m/s, ENE	0.2 mm	92%
4Thu	+25°C	+16°C	+19°C	2-4 m/s, E	0 mm	90%
5Fri	+19°C	+14°C	+19°C	3-5 m/s, SSE	0 mm	87%
6Sat	+14°C	+12°C	+20°C	3-4 m/s, S	0.9 mm	90%
7Sun	+15°C	+12°C	+20°C	2 m/s, S	0.2 mm	86%
8Mon	+19°C	+14°C	+20°C	2 m/s, N	0.4 mm	95%
9Tue	+25°C	+16°C	+20°C	3 m/s, W	0.4 mm	88%
10Wed	+22°C	+14°C	+20°C	2-3 m/s, NE	0 mm	86%
11Thu	+23°C	+13°C	+20°C	2-3 m/s, ENE	0 mm	86%
12Fri	+19°C	+12°C	+20°C	2-3 m/s, ESE	0 mm	82%
13Sat	+19°C	+11°C	+20°C	2 m/s, E	0 mm	78%
14Sun	+21°C	+13°C	+20°C	2-4 m/s, NE	0 mm	80%
15Mon	+21°C	+15°C	+20°C	1-2 m/s, NE	0 mm	84%
16Tue	+24°C	+16°C	+20°C	2-3 m/s, NE	0 mm	88%
17Wed	+23°C	+17°C	+19°C	2 m/s, ESE	0 mm	88%
18Thu	+24°C	+17°C	+20°C	2 m/s, E	0 mm	82%
19Fri	+24°C	+17°C	+20°C	2-3 m/s, NE	0.1 mm	86%
20Sat	+27°C	+16°C	+20°C	2-4 m/s, NE	0 mm	85%
21Sun	+26°C	+18°C	+20°C	2-3 m/s, E	1.9 mm	89%
22Mon	+21°C	+14°C	+20°C	3 m/s, SE	1.7 mm	96%
23Tue	+23°C	+11°C	+20°C	1-2 m/s, WNW	0 mm	72%
24Wed	+21°C	+14°C	+20°C	2-4 m/s, E	0.1 mm	74%
25Thu	+18°C	+15°C	+20°C	4-5 m/s, SE	0.2 mm	74%
26Fri	+20°C	+15°C	+20°C	3 m/s, ENE	0.1 mm	66%
27Sat	+20°C	+15°C	+20°C	4-5 m/s, NE	0 mm	74%
28Sun	+19°C	+16°C	+20°C	3-4 m/s, N	0.2 mm	86%
29Mon	+24°C	+16°C	+20°C	1-2 m/s, ENE	0 mm	86%
30Tue	+21°C	+17°C	+20°C	1 m/s, N	0.1 mm	90%

Weather highs and lows in Itajai for september

Warmest day: 20 september, +27°C
Coldest night: 13 september, +11°C
Max precipitation: 21 september, 1.9 mm
Warmest water: 6 september, +20°C
Coldest water: 1 september, +19°C

Climate in Itajai in september

Year: 2025
Average daytime temperature: +21°C
Average nighttime temperature: +15°C
Water temperature: +20°C
Precipitation (month): 8.5 mm
Days with precipitation: 3
Humidity: 85%
Wind: 2 m/s

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Sun	+25°C	+16°C	—	2-3 m/s, NE	0 mm	86%
2Mon	+22°C	+13°C	—	2 m/s, E	0 mm	80%
3Tue	+24°C	+16°C	—	2-3 m/s, NNE	0 mm	84%
4Wed	+22°C	+16°C	—	2-3 m/s, NE	0 mm	91%
5Thu	+18°C	+14°C	—	3-5 m/s, SSE	0.4 mm	92%
6Fri	+18°C	+12°C	—	1-2 m/s, NE	0 mm	80%
7Sat	+24°C	+16°C	—	2-4 m/s, NNE	0 mm	85%
8Sun	+27°C	+18°C	—	2-3 m/s, NE	0 mm	88%
9Mon	+25°C	+18°C	—	1-3 m/s, ENE	0 mm	89%
10Tue	+25°C	+17°C	—	2-4 m/s, NE	0.1 mm	85%
11Wed	+29°C	+17°C	—	2-3 m/s, NE	0 mm	82%
12Thu	+25°C	+18°C	—	2-4 m/s, ESE	0 mm	80%
13Fri	+24°C	+17°C	—	2 m/s, ENE	0 mm	87%
14Sat	+26°C	+17°C	—	2-5 m/s, S	3 mm	88%
15Sun	+16°C	+14°C	—	4 m/s, SSE	8.1 mm	96%
16Mon	+17°C	+14°C	—	3 m/s, S	3.7 mm	92%
17Tue	+20°C	+15°C	—	2-4 m/s, ESE	0 mm	82%
18Wed	+21°C	+16°C	—	3 m/s, NE	0.2 mm	86%
19Thu	+21°C	+17°C	—	2-4 m/s, NNE	0.3 mm	88%
20Fri	+24°C	+18°C	—	2-3 m/s, SSE	1.1 mm	92%
21Sat	+25°C	+18°C	—	2 m/s, ENE	0 mm	90%
22Sun	+25°C	+17°C	—	2-4 m/s, NE	0 mm	89%
23Mon	+25°C	+18°C	—	2-3 m/s, NE	0 mm	91%
24Tue	+25°C	+19°C	—	2-3 m/s, NE	0.1 mm	89%
25Wed	+26°C	+18°C	—	2-3 m/s, NE	0 mm	86%
26Thu	+25°C	+18°C	—	2-4 m/s, ESE	2.7 mm	90%
27Fri	+25°C	+16°C	—	2-4 m/s, E	7.6 mm	84%
28Sat	+21°C	+14°C	—	2 m/s, ENE	0 mm	82%
29Sun	+22°C	+14°C	—	2-4 m/s, NE	0 mm	86%
30Mon	+24°C	+18°C	—	3-4 m/s, NE	0.1 mm	88%

Weather highs and lows in Itajai for september

Warmest day: 11 september, +29°C
Coldest night: 6 september, +12°C
Max precipitation: 15 september, 8.1 mm
Warmest water: —
Coldest water: —

Climate in Itajai in september

Year: 2024
Average daytime temperature: +23°C
Average nighttime temperature: +16°C
Water temperature: —
Precipitation (month): 27.4 mm
Days with precipitation: 6
Humidity: 87%
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	+22°C	+15°C	—	1-2 m/s, ENE	0 mm	89%
2Sat	+18°C	+16°C	—	1-2 m/s, WSW	3.1 mm	96%
3Sun	+23°C	+16°C	—	2 m/s, SSW	0 mm	93%
4Mon	+26°C	+19°C	—	1-3 m/s, NNE	0 mm	92%
5Tue	+22°C	+14°C	—	4-5 m/s, SE	0 mm	77%
6Wed	+18°C	+14°C	—	2-3 m/s, SSE	0 mm	82%
7Thu	+20°C	+17°C	—	3-5 m/s, NNE	0 mm	91%
8Fri	+25°C	+18°C	—	2-4 m/s, NNW	0.2 mm	87%
9Sat	+25°C	+18°C	—	2-3 m/s, WSW	0.2 mm	89%
10Sun	+21°C	+17°C	—	1 m/s, ESE	0 mm	91%
11Mon	+25°C	+17°C	—	2-4 m/s, NE	0 mm	90%
12Tue	+28°C	+17°C	—	2-3 m/s, NE	0 mm	86%
13Wed	+22°C	+17°C	—	2 m/s, E	0 mm	92%
14Thu	+23°C	+13°C	—	3-4 m/s, SSW	0 mm	74%
15Fri	+17°C	+11°C	—	2 m/s, ENE	0 mm	77%
16Sat	+23°C	+14°C	—	2-4 m/s, NNE	0 mm	82%
17Sun	+28°C	+15°C	—	2 m/s, NNE	0 mm	83%
18Mon	+30°C	+18°C	—	1-2 m/s, NE	0 mm	79%
19Tue	+26°C	+19°C	—	2-3 m/s, E	0.3 mm	90%
20Wed	+27°C	+19°C	—	2-3 m/s, NE	0.2 mm	90%
21Thu	+25°C	+19°C	—	1-3 m/s, NE	0.1 mm	88%
22Fri	+28°C	+18°C	—	2-3 m/s, E	0 mm	86%
23Sat	+28°C	+20°C	—	2-3 m/s, ENE	0 mm	90%
24Sun	+30°C	+19°C	—	3-4 m/s, SE	0 mm	88%
25Mon	+23°C	+19°C	—	3 m/s, SE	0.1 mm	90%
26Tue	+21°C	+19°C	—	3-4 m/s, NE	0.3 mm	98%
27Wed	+26°C	+16°C	—	2-4 m/s, SE	7.5 mm	88%
28Thu	+20°C	+13°C	—	4-6 m/s, SE	0 mm	74%
29Fri	+19°C	+16°C	—	3-4 m/s, NE	1.8 mm	94%
30Sat	+19°C	+18°C	—	2-3 m/s, NNE	1.3 mm	96%

Weather highs and lows in Itajai for september

Warmest day: 18 september, +30°C
Coldest night: 15 september, +11°C
Max precipitation: 27 september, 7.5 mm
Warmest water: —
Coldest water: —

Climate in Itajai in september

Year: 2023
Average daytime temperature: +24°C
Average nighttime temperature: +17°C
Water temperature: —
Precipitation (month): 15.1 mm
Days with precipitation: 4
Humidity: 87%
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	+21°C	+14°C	—	2-3 m/s, NE	0 mm	88%
2Fri	+20°C	+15°C	—	2-3 m/s, N	0 mm	90%
3Sat	+17°C	+13°C	—	4-6 m/s, SSE	8.2 mm	95%
4Sun	+19°C	+11°C	—	3 m/s, ESE	0 mm	75%
5Mon	+19°C	+12°C	—	2 m/s, E	0.4 mm	80%
6Tue	+18°C	+15°C	—	3-5 m/s, NE	1.3 mm	93%
7Wed	+20°C	+16°C	—	3-5 m/s, W	1 mm	95%
8Thu	+24°C	+16°C	—	2 m/s, NE	0 mm	89%
9Fri	+28°C	+17°C	—	2 m/s, N	0 mm	80%
10Sat	+22°C	+14°C	—	4-5 m/s, SSE	0.7 mm	90%
11Sun	+15°C	+14°C	—	2 m/s, ESE	0 mm	85%
12Mon	+17°C	+15°C	—	2-3 m/s, NNW	4.3 mm	95%
13Tue	+21°C	+16°C	—	3-5 m/s, SE	0 mm	90%
14Wed	+17°C	+15°C	—	1-2 m/s, SW	0.5 mm	94%
15Thu	+17°C	+14°C	—	2-3 m/s, WSW	0.1 mm	92%
16Fri	+20°C	+14°C	—	3 m/s, ESE	0 mm	82%
17Sat	+21°C	+14°C	—	3 m/s, ESE	0.1 mm	82%
18Sun	+20°C	+16°C	—	3-5 m/s, NE	0.4 mm	85%
19Mon	+19°C	+15°C	—	3-4 m/s, NNE	1.5 mm	88%
20Tue	+24°C	+15°C	—	2-4 m/s, ENE	0.1 mm	85%
21Wed	+19°C	+15°C	—	1 m/s, NNE	0 mm	90%
22Thu	+22°C	+15°C	—	2-3 m/s, ESE	0 mm	90%
23Fri	+22°C	+12°C	—	5-7 m/s, W	0 mm	65%
24Sat	+21°C	+11°C	—	2-3 m/s, ENE	0 mm	76%
25Sun	+19°C	+12°C	—	1-2 m/s, ENE	0.3 mm	86%
26Mon	+21°C	+14°C	—	2 m/s, NW	1.3 mm	90%
27Tue	+22°C	+16°C	—	2-3 m/s, ESE	0 mm	90%
28Wed	+20°C	+16°C	—	5-6 m/s, SSE	0 mm	82%
29Thu	+19°C	+16°C	—	4-5 m/s, SE	0 mm	79%
30Fri	+18°C	+16°C	—	2-3 m/s, ENE	0 mm	89%

Weather highs and lows in Itajai for september

Warmest day: 9 september, +28°C
Coldest night: 4 september, +11°C
Max precipitation: 3 september, 8.2 mm
Warmest water: —
Coldest water: —

Climate in Itajai in september

Year: 2022
Average daytime temperature: +20°C
Average nighttime temperature: +15°C
Water temperature: —
Precipitation (month): 20.2 mm
Days with precipitation: 6
Humidity: 86%
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	+22°C	+17°C	—	2-4 m/s, NE	0.1 mm	90%
2Thu	+23°C	+17°C	—	2 m/s, NNE	0 mm	85%
3Fri	+26°C	+16°C	—	2-4 m/s, NNE	0 mm	85%
4Sat	+21°C	+17°C	—	2 m/s, E	0.1 mm	85%
5Sun	+24°C	+16°C	—	2-3 m/s, N	2.3 mm	88%
6Mon	+21°C	+17°C	—	2-3 m/s, ESE	0 mm	86%
7Tue	+19°C	+17°C	—	4-6 m/s, ENE	1.3 mm	96%
8Wed	+20°C	+18°C	—	4 m/s, NE	1.8 mm	96%
9Thu	+24°C	+18°C	—	2-4 m/s, ENE	0 mm	87%
10Fri	+24°C	+15°C	—	3-4 m/s, W	0 mm	79%
11Sat	+21°C	+14°C	—	2 m/s, ENE	0 mm	88%
12Sun	+22°C	+18°C	—	2 m/s, NE	0 mm	91%
13Mon	+24°C	+18°C	—	1-2 m/s, E	0 mm	90%
14Tue	+21°C	+20°C	—	1-2 m/s, N	1.1 mm	96%
15Wed	+20°C	+15°C	—	4-6 m/s, SSE	0 mm	94%
16Thu	+16°C	+14°C	—	2 m/s, SSE	2.9 mm	88%
17Fri	+18°C	+14°C	—	1-2 m/s, NNE	5.2 mm	96%
18Sat	+23°C	+17°C	—	2 m/s, NNE	0.3 mm	93%
19Sun	+23°C	+18°C	—	1-2 m/s, NE	0.3 mm	95%
20Mon	+23°C	+20°C	—	2-3 m/s, NNE	0.3 mm	94%
21Tue	+22°C	+14°C	—	3-6 m/s, SE	1.9 mm	87%
22Wed	+21°C	+14°C	—	4-5 m/s, SE	0 mm	74%
23Thu	+20°C	+16°C	—	3-4 m/s, NE	0.1 mm	70%
24Fri	+21°C	+15°C	—	2 m/s, NE	0.5 mm	85%
25Sat	+21°C	+17°C	—	2 m/s, E	0 mm	88%
26Sun	+24°C	+18°C	—	1-2 m/s, NE	0.1 mm	88%
27Mon	+24°C	+19°C	—	2-4 m/s, ENE	0 mm	89%
28Tue	+25°C	+19°C	—	2-3 m/s, NE	0 mm	88%
29Wed	+22°C	+18°C	—	2-4 m/s, SE	1.8 mm	93%
30Thu	+22°C	+17°C	—	3-4 m/s, ENE	0.1 mm	85%

Weather highs and lows in Itajai for september

Warmest day: 3 september, +26°C
Coldest night: 11 september, +14°C
Max precipitation: 17 september, 5.2 mm
Warmest water: —
Coldest water: —

Climate in Itajai in september

Year: 2021
Average daytime temperature: +22°C
Average nighttime temperature: +17°C
Water temperature: —
Precipitation (month): 20.2 mm
Days with precipitation: 8
Humidity: 88%
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	+19°C	+17°C	—	3-4 m/s, E	1 mm	94%
2Wed	+20°C	+17°C	—	3-4 m/s, NE	0.2 mm	95%
3Thu	+24°C	+17°C	—	2-3 m/s, NNE	0 mm	91%
4Fri	+20°C	+16°C	—	3 m/s, SE	0 mm	88%
5Sat	+21°C	+16°C	—	2 m/s, SSW	0.2 mm	88%
6Sun	+20°C	+16°C	—	2 m/s, E	0.3 mm	96%
7Mon	+18°C	+17°C	—	3-4 m/s, SE	0.3 mm	92%
8Tue	+19°C	+17°C	—	3-4 m/s, SSE	0.9 mm	95%
9Wed	+22°C	+17°C	—	3-4 m/s, NE	1.7 mm	94%
10Thu	+25°C	+17°C	—	2-3 m/s, WSW	0 mm	90%
11Fri	+22°C	+16°C	—	2-3 m/s, NNE	0 mm	87%
12Sat	+24°C	+17°C	—	2-3 m/s, ESE	0 mm	90%
13Sun	+25°C	+18°C	—	2-3 m/s, NNE	0 mm	87%
14Mon	+24°C	+15°C	—	4-6 m/s, SE	0 mm	81%
15Tue	+17°C	+14°C	—	2-4 m/s, E	0 mm	70%
16Wed	+21°C	+15°C	—	1-2 m/s, NNE	0 mm	83%
17Thu	+24°C	+18°C	—	2 m/s, WSW	1.5 mm	91%
18Fri	+24°C	+18°C	—	2-3 m/s, NE	0 mm	88%
19Sat	+26°C	+16°C	—	2-6 m/s, ENE	0 mm	83%
20Sun	+17°C	+14°C	—	4-5 m/s, SE	0 mm	72%
21Mon	+18°C	+14°C	—	3 m/s, ESE	0.1 mm	72%
22Tue	+17°C	+13°C	—	2-3 m/s, ESE	0 mm	69%
23Wed	+20°C	+15°C	—	1-2 m/s, ENE	0 mm	80%
24Thu	+22°C	+16°C	—	2 m/s, NE	0 mm	86%
25Fri	+24°C	+17°C	—	1-2 m/s, NE	0 mm	86%
26Sat	+24°C	+17°C	—	1-2 m/s, NNE	0 mm	88%
27Sun	+23°C	+18°C	—	1-2 m/s, NNE	0 mm	91%
28Mon	+25°C	+17°C	—	3-5 m/s, SSE	0 mm	88%
29Tue	+20°C	+17°C	—	2 m/s, ENE	0 mm	79%
30Wed	+23°C	+17°C	—	2-3 m/s, ESE	0 mm	92%

Weather highs and lows in Itajai for september

Warmest day: 19 september, +26°C
Coldest night: 22 september, +13°C
Max precipitation: 9 september, 1.7 mm
Warmest water: —
Coldest water: —

Climate in Itajai in september

Year: 2020
Average daytime temperature: +22°C
Average nighttime temperature: +16°C
Water temperature: —
Precipitation (month): 6.2 mm
Days with precipitation: 3
Humidity: 86%
Wind: 2 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	+17°C	+15°C	—	3-4 m/s, SSW	7.3 mm	92%
2Mon	+17°C	+14°C	—	3 m/s, SE	0 mm	77%
3Tue	+18°C	+14°C	—	2-4 m/s, SE	0 mm	84%
4Wed	+17°C	+13°C	—	3-4 m/s, SSE	0.3 mm	79%
5Thu	+14°C	+13°C	—	4-5 m/s, SSE	0 mm	72%
6Fri	+17°C	+13°C	—	1-2 m/s, NE	3.5 mm	88%
7Sat	+21°C	+16°C	—	3 m/s, NNE	0.1 mm	92%
8Sun	+23°C	+18°C	—	2 m/s, NE	0 mm	90%
9Mon	+25°C	+18°C	—	1-2 m/s, NNE	0 mm	84%
10Tue	+24°C	+18°C	—	2-4 m/s, NNE	0 mm	81%
11Wed	+23°C	+17°C	—	2-3 m/s, NNE	0 mm	87%
12Thu	+23°C	+18°C	—	3-6 m/s, SE	1.2 mm	86%
13Fri	+18°C	+17°C	—	3-4 m/s, SE	1 mm	88%
14Sat	+19°C	+17°C	—	2-3 m/s, NE	0 mm	88%
15Sun	+21°C	+17°C	—	2-3 m/s, NNE	0 mm	92%
16Mon	+24°C	+18°C	—	2-3 m/s, NE	0 mm	90%
17Tue	+20°C	+18°C	—	3 m/s, SE	0.1 mm	94%
18Wed	+21°C	+16°C	—	2-4 m/s, SE	3.6 mm	91%
19Thu	+20°C	+16°C	—	2 m/s, NNE	1.4 mm	96%
20Fri	+19°C	+15°C	—	4-6 m/s, SSE	2.3 mm	91%
21Sat	+17°C	+15°C	—	3-4 m/s, SSE	2.3 mm	85%
22Sun	+20°C	+15°C	—	3-4 m/s, SE	0 mm	75%
23Mon	+18°C	+13°C	—	3-4 m/s, ESE	0 mm	67%
24Tue	+17°C	+16°C	—	2 m/s, NE	0.1 mm	84%
25Wed	+20°C	+16°C	—	2-3 m/s, NE	0.4 mm	88%
26Thu	+22°C	+16°C	—	2 m/s, ENE	0.1 mm	86%
27Fri	+21°C	+16°C	—	3-5 m/s, SE	0 mm	80%
28Sat	+19°C	+15°C	—	3 m/s, ENE	0.1 mm	76%
29Sun	+20°C	+16°C	—	3-4 m/s, NE	0 mm	81%
30Mon	+21°C	+18°C	—	3-4 m/s, NNE	0.2 mm	89%

Weather highs and lows in Itajai for september

Warmest day: 9 september, +25°C
Coldest night: 4 september, +13°C
Max precipitation: 1 september, 7.3 mm
Warmest water: —
Coldest water: —

Climate in Itajai in september

Year: 2019
Average daytime temperature: +20°C
Average nighttime temperature: +16°C
Water temperature: —
Precipitation (month): 24 mm
Days with precipitation: 8
Humidity: 85%
Wind: 3 m/s

Weather in Itajai in september by year

Year	Day	Night	Precipitation	Days with precipitation	Water
2025	+21°C	+15°C	8.5 mm	3	+20°C
2024	+23°C	+16°C	27.4 mm	6	—
2023	+24°C	+17°C	15.1 mm	4	—
2022	+20°C	+15°C	20.2 mm	6	—
2021	+22°C	+17°C	20.2 mm	8	—
2020	+22°C	+16°C	6.2 mm	3	—
2019	+20°C	+16°C	24 mm	8	—

Comparison september in Itajai with other months

Month	Day	Night	Days with precipitation	Sunny days
January	+28°C	+22°C	11	2
February	+28°C	+22°C	8	2
March	+28°C	+21°C	7	2
April	+25°C	+19°C	6	5
May	+23°C	+17°C	5	8
June	+21°C	+15°C	5	11
July	+20°C	+13°C	4	12
August	+20°C	+14°C	4	9
September	+22°C	+16°C	5	3
October	+22°C	+18°C	10	2
November	+24°C	+19°C	8	3
December	+26°C	+20°C	7	1