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September

Hoi An Weather in September with Sea Temperature

September weather in Hoi An includes average daytime air +30°C, nighttime +25°C, average sea temperature +30°C. Daily water temperatures usually range from +29°C to +31°C, which is comfortable for swimming and 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	+31°C	+25°C	+30°C	3 m/s	1.1 mm	81%
2Tue	+31°C	+25°C	+30°C	2 m/s	2.2 mm	80%
3Wed	+31°C	+25°C	+31°C	3 m/s	2.6 mm	81%
4Thu	+31°C	+25°C	+31°C	2 m/s	2.1 mm	81%
5Fri	+31°C	+25°C	+31°C	3 m/s	1.6 mm	81%
6Sat	+31°C	+25°C	+31°C	2 m/s	0.7 mm	81%
7Sun	+31°C	+26°C	+31°C	2 m/s	2.2 mm	79%
8Mon	+31°C	+25°C	+31°C	3 m/s	1 mm	79%
9Tue	+31°C	+25°C	+31°C	2 m/s	2.4 mm	81%
10Wed	+31°C	+25°C	+30°C	2 m/s	0.9 mm	82%
11Thu	+30°C	+25°C	+30°C	3 m/s	2.4 mm	82%
12Fri	+30°C	+25°C	+30°C	3 m/s	4.2 mm	83%
13Sat	+31°C	+24°C	+30°C	2 m/s	2 mm	82%
14Sun	+30°C	+25°C	+30°C	2 m/s	3 mm	82%
15Mon	+31°C	+25°C	+30°C	2 m/s	2.7 mm	84%
16Tue	+31°C	+25°C	+30°C	2 m/s	0.3 mm	83%
17Wed	+30°C	+25°C	+30°C	2 m/s	1.6 mm	83%
18Thu	+30°C	+25°C	+30°C	3 m/s	4.1 mm	85%
19Fri	+29°C	+24°C	+30°C	3 m/s	6.5 mm	84%
20Sat	+30°C	+24°C	+30°C	2 m/s	2.2 mm	83%
21Sun	+30°C	+25°C	+30°C	2 m/s	2 mm	83%
22Mon	+29°C	+24°C	+30°C	2 m/s	1.2 mm	85%
23Tue	+29°C	+24°C	+30°C	3 m/s	1.7 mm	85%
24Wed	+29°C	+24°C	+30°C	3 m/s	1.1 mm	85%
25Thu	+28°C	+24°C	+30°C	3 m/s	3 mm	87%
26Fri	+29°C	+24°C	+30°C	3 m/s	0.7 mm	83%
27Sat	+29°C	+24°C	+30°C	3 m/s	2.5 mm	84%
28Sun	+29°C	+24°C	+29°C	4 m/s	11.9 mm	86%
29Mon	+30°C	+24°C	+29°C	2 m/s	1 mm	84%
30Tue	+30°C	+24°C	+30°C	2 m/s	0.6 mm	83%

Sea water temperature by months

Water +30°C

Day and night air temperature

Day +30°C Night +25°C

Weather highs and lows in in Hoi An for september

Warmest day: 1 september, +31°C
Coldest night: 19 september, +24°C
Max precipitation: 28 september, 11.9 mm
Warmest sea water: 3 september, +31°C
Coldest sea water: 28 september, +29°C

Climate in Hoi An september

Average daytime temperature: +30°C
Average nighttime temperature: +25°C
Sea water temperature: —
Precipitation (monthly average): 71.5 mm
Days with precipitation: 13
Humidity: 83%
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	+29°C	+25°C	+30°C	3-4 m/s, N	1.8 mm	87%
2Tue	+29°C	+24°C	+30°C	2-3 m/s, NE	0.3 mm	87%
3Wed	+29°C	+25°C	+31°C	2-3 m/s, NE	0.8 mm	86%
4Thu	+30°C	+24°C	+31°C	2-3 m/s, ENE	0.1 mm	83%
5Fri	+30°C	+25°C	+31°C	2-3 m/s, ENE	0.8 mm	82%
6Sat	+30°C	+25°C	+31°C	3-4 m/s, NNE	2 mm	86%
7Sun	+30°C	+25°C	+31°C	2-3 m/s, NNE	2.4 mm	85%
8Mon	+31°C	+25°C	+31°C	3 m/s, SE	0.1 mm	82%
9Tue	+30°C	+25°C	+31°C	2-3 m/s, SSW	0.8 mm	79%
10Wed	+30°C	+25°C	+30°C	2-3 m/s, NNE	1.2 mm	79%
11Thu	+30°C	+24°C	+30°C	3 m/s, E	0.9 mm	84%
12Fri	+30°C	+24°C	+30°C	3-4 m/s, ESE	0 mm	85%
13Sat	+30°C	+24°C	+30°C	3-4 m/s, ENE	0 mm	81%
14Sun	+30°C	+24°C	+30°C	3-4 m/s, E	2 mm	81%
15Mon	+29°C	+25°C	+30°C	3 m/s, E	1.6 mm	85%
16Tue	+30°C	+25°C	+30°C	2-3 m/s, NE	0.7 mm	83%
17Wed	+28°C	+24°C	+30°C	2-3 m/s, WNW	0.8 mm	85%
18Thu	+29°C	+25°C	+30°C	2-3 m/s, NE	0.5 mm	83%
19Fri	+29°C	+24°C	+30°C	3-4 m/s, NNE	2.8 mm	86%
20Sat	+30°C	+24°C	+30°C	3-4 m/s, NE	3.6 mm	84%
21Sun	+30°C	+25°C	+30°C	2-3 m/s, NE	1.9 mm	84%
22Mon	+29°C	+25°C	+30°C	2-3 m/s, N	3.8 mm	85%
23Tue	+30°C	+25°C	+30°C	3-4 m/s, N	1.5 mm	84%
24Wed	+30°C	+25°C	+30°C	3 m/s, WNW	0.8 mm	81%
25Thu	+32°C	+25°C	+30°C	3-4 m/s, SSW	1.3 mm	78%
26Fri	+28°C	+25°C	+30°C	3-4 m/s, N	1.8 mm	83%
27Sat	+28°C	+25°C	+30°C	3-4 m/s, NNW	4.9 mm	88%
28Sun	+26°C	+24°C	+29°C	11-16 m/s, SW	63.8 mm	95%
29Mon	+29°C	+25°C	+29°C	3-4 m/s, S	0.5 mm	85%
30Tue	+29°C	+25°C	+30°C	2-3 m/s, ESE	0.2 mm	83%

Weather highs and lows in in Hoi An for september

Warmest day: 25 september, +32°C
Coldest night: 2 september, +24°C
Max precipitation: 28 september, 63.8 mm
Warmest water: 3 september, +31°C
Coldest water: 28 september, +29°C

Climate in Hoi An september

Year: 2025
Average daytime temperature: +30°C
Average nighttime temperature: +25°C
Water temperature: +30°C
Precipitation (month): 103.7 mm
Days with precipitation: 15
Humidity: 84%
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	+32°C	+25°C	—	3-4 m/s, ENE	0.2 mm	78%
2Mon	+32°C	+25°C	—	3-4 m/s, ENE	0.6 mm	78%
3Tue	+32°C	+25°C	—	3-5 m/s, NE	2.6 mm	81%
4Wed	+32°C	+25°C	—	2-3 m/s, NE	3.8 mm	83%
5Thu	+33°C	+25°C	—	3 m/s, NNE	0 mm	77%
6Fri	+34°C	+26°C	—	3-4 m/s, NNW	0 mm	71%
7Sat	+34°C	+27°C	—	4-6 m/s, SW	0 mm	67%
8Sun	+35°C	+27°C	—	3 m/s, W	0 mm	67%
9Mon	+32°C	+26°C	—	2-3 m/s, NNE	4.3 mm	74%
10Tue	+30°C	+25°C	—	2 m/s, SE	1 mm	84%
11Wed	+29°C	+25°C	—	2-3 m/s, SSW	1.2 mm	88%
12Thu	+30°C	+25°C	—	2-4 m/s, NNE	5.3 mm	84%
13Fri	+30°C	+25°C	—	2 m/s, NE	1.9 mm	84%
14Sat	+29°C	+25°C	—	1-3 m/s, N	2.7 mm	85%
15Sun	+31°C	+25°C	—	3 m/s, NNE	5.8 mm	82%
16Mon	+30°C	+25°C	—	2-4 m/s, N	0.1 mm	83%
17Tue	+30°C	+25°C	—	3-4 m/s, N	0.3 mm	83%
18Wed	+28°C	+24°C	—	3-4 m/s, NW	13.9 mm	86%
19Thu	+26°C	+22°C	—	4-5 m/s, SSE	36.5 mm	93%
20Fri	+30°C	+24°C	—	2 m/s, NNE	0.4 mm	80%
21Sat	+30°C	+25°C	—	2-3 m/s, NE	8 mm	84%
22Sun	+26°C	+24°C	—	2-3 m/s, SW	3.7 mm	94%
23Mon	+25°C	+23°C	—	2-3 m/s, SSW	2.2 mm	93%
24Tue	+28°C	+24°C	—	3 m/s, NNE	0.2 mm	87%
25Wed	+28°C	+24°C	—	2-3 m/s, ENE	0.2 mm	86%
26Thu	+29°C	+24°C	—	2-3 m/s, E	0.1 mm	85%
27Fri	+30°C	+24°C	—	3-4 m/s, ESE	0.7 mm	84%
28Sat	+30°C	+24°C	—	2-3 m/s, ESE	0.1 mm	85%
29Sun	+30°C	+24°C	—	2-3 m/s, E	0 mm	84%
30Mon	+31°C	+25°C	—	3-4 m/s, E	2.5 mm	86%

Weather highs and lows in in Hoi An for september

Warmest day: 8 september, +35°C
Coldest night: 19 september, +22°C
Max precipitation: 19 september, 36.5 mm
Warmest water: —
Coldest water: —

Climate in Hoi An september

Year: 2024
Average daytime temperature: +30°C
Average nighttime temperature: +25°C
Water temperature: —
Precipitation (month): 98.3 mm
Days with precipitation: 15
Humidity: 83%
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	+33°C	+25°C	—	3-5 m/s, N	0 mm	72%
2Sat	+33°C	+25°C	—	3-4 m/s, N	0 mm	71%
3Sun	+32°C	+26°C	—	3-4 m/s, NNE	0 mm	68%
4Mon	+31°C	+25°C	—	3-5 m/s, NNE	0.6 mm	79%
5Tue	+30°C	+26°C	—	2-4 m/s, NNE	1.4 mm	85%
6Wed	+28°C	+25°C	—	2-3 m/s, WNW	0.9 mm	89%
7Thu	+31°C	+26°C	—	2-4 m/s, NE	1.4 mm	82%
8Fri	+31°C	+25°C	—	2-3 m/s, NE	1.8 mm	81%
9Sat	+32°C	+26°C	—	3-4 m/s, NE	6.7 mm	82%
10Sun	+32°C	+26°C	—	3-4 m/s, ENE	0.1 mm	80%
11Mon	+33°C	+25°C	—	2-3 m/s, WNW	0 mm	77%
12Tue	+31°C	+26°C	—	3-4 m/s, WSW	0 mm	72%
13Wed	+31°C	+25°C	—	2-3 m/s, WSW	2.1 mm	74%
14Thu	+30°C	+25°C	—	2-3 m/s, NNE	5.1 mm	75%
15Fri	+30°C	+25°C	—	2-3 m/s, NE	5.5 mm	82%
16Sat	+29°C	+25°C	—	2-3 m/s, NNE	0.7 mm	85%
17Sun	+30°C	+25°C	—	2-3 m/s, NE	1.4 mm	86%
18Mon	+30°C	+25°C	—	2-3 m/s, ENE	0.2 mm	85%
19Tue	+31°C	+25°C	—	2-3 m/s, E	0 mm	81%
20Wed	+31°C	+25°C	—	3-4 m/s, E	0 mm	83%
21Thu	+31°C	+25°C	—	2-4 m/s, ENE	0.1 mm	80%
22Fri	+31°C	+25°C	—	3-4 m/s, ENE	0.1 mm	80%
23Sat	+30°C	+25°C	—	2-3 m/s, ENE	0.1 mm	81%
24Sun	+28°C	+24°C	—	3 m/s, N	2.6 mm	87%
25Mon	+27°C	+24°C	—	4 m/s, NW	11.3 mm	93%
26Tue	+30°C	+24°C	—	2-3 m/s, ENE	1.1 mm	83%
27Wed	+29°C	+25°C	—	2-4 m/s, NNE	0 mm	85%
28Thu	+29°C	+25°C	—	2-3 m/s, NNE	0.6 mm	86%
29Fri	+29°C	+24°C	—	3-4 m/s, NNE	0.1 mm	86%
30Sat	+29°C	+24°C	—	2-3 m/s, NE	0.2 mm	86%

Weather highs and lows in in Hoi An for september

Warmest day: 1 september, +33°C
Coldest night: 24 september, +24°C
Max precipitation: 25 september, 11.3 mm
Warmest water: —
Coldest water: —

Climate in Hoi An september

Year: 2023
Average daytime temperature: +30°C
Average nighttime temperature: +25°C
Water temperature: —
Precipitation (month): 44.1 mm
Days with precipitation: 11
Humidity: 81%
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	+33°C	+25°C	—	3-4 m/s, ENE	0.2 mm	80%
2Fri	+32°C	+25°C	—	2-4 m/s, NE	0.1 mm	79%
3Sat	+33°C	+25°C	—	3-4 m/s, NE	0.1 mm	80%
4Sun	+33°C	+26°C	—	3 m/s, NNE	0.3 mm	80%
5Mon	+32°C	+25°C	—	3-4 m/s, NNE	0 mm	79%
6Tue	+31°C	+25°C	—	3 m/s, NNE	0.1 mm	81%
7Wed	+29°C	+25°C	—	2-3 m/s, N	4.8 mm	79%
8Thu	+29°C	+24°C	—	3 m/s, SE	3 mm	85%
9Fri	+28°C	+25°C	—	2-3 m/s, N	1.5 mm	88%
10Sat	+30°C	+25°C	—	3-4 m/s, NNE	0.2 mm	84%
11Sun	+31°C	+25°C	—	3 m/s, NE	0.7 mm	79%
12Mon	+32°C	+24°C	—	2-3 m/s, NE	0 mm	83%
13Tue	+32°C	+24°C	—	2-4 m/s, ENE	0.1 mm	81%
14Wed	+32°C	+24°C	—	2-3 m/s, NE	8.6 mm	80%
15Thu	+31°C	+24°C	—	2-3 m/s, ENE	0 mm	81%
16Fri	+31°C	+25°C	—	2-3 m/s, NE	0 mm	81%
17Sat	+31°C	+24°C	—	2-3 m/s, NE	3.8 mm	80%
18Sun	+31°C	+24°C	—	2-4 m/s, NE	0.1 mm	81%
19Mon	+31°C	+24°C	—	2-3 m/s, NNE	0.1 mm	80%
20Tue	+33°C	+24°C	—	2-3 m/s, ENE	0 mm	81%
21Wed	+29°C	+25°C	—	2-3 m/s, ENE	1 mm	79%
22Thu	+28°C	+24°C	—	1-2 m/s, NNW	0.4 mm	85%
23Fri	+28°C	+24°C	—	2 m/s, NNE	1.3 mm	83%
24Sat	+28°C	+24°C	—	1-2 m/s, SSE	1.4 mm	85%
25Sun	+27°C	+24°C	—	2 m/s, SW	3.2 mm	87%
26Mon	+29°C	+24°C	—	3-4 m/s, NNE	0.7 mm	83%
27Tue	+28°C	+24°C	—	4-7 m/s, NW	10.8 mm	82%
28Wed	+27°C	+25°C	—	9-13 m/s, E	16.9 mm	91%
29Thu	+30°C	+24°C	—	2-3 m/s, WSW	2.8 mm	80%
30Fri	+30°C	+25°C	—	2-3 m/s, NNE	0.4 mm	83%

Weather highs and lows in in Hoi An for september

Warmest day: 1 september, +33°C
Coldest night: 8 september, +24°C
Max precipitation: 28 september, 16.9 mm
Warmest water: —
Coldest water: —

Climate in Hoi An september

Year: 2022
Average daytime temperature: +30°C
Average nighttime temperature: +25°C
Water temperature: —
Precipitation (month): 62.6 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	+32°C	+25°C	—	2-3 m/s, ENE	0.4 mm	81%
2Thu	+29°C	+25°C	—	2 m/s, NNW	0 mm	83%
3Fri	+31°C	+25°C	—	2-3 m/s, ENE	0.2 mm	81%
4Sat	+31°C	+25°C	—	2-3 m/s, NE	2.3 mm	77%
5Sun	+31°C	+25°C	—	2-3 m/s, NE	7.5 mm	82%
6Mon	+31°C	+25°C	—	2-3 m/s, ENE	1.1 mm	81%
7Tue	+28°C	+25°C	—	2-3 m/s, N	5.4 mm	81%
8Wed	+30°C	+24°C	—	3-5 m/s, E	2 mm	81%
9Thu	+31°C	+25°C	—	3-4 m/s, ENE	1.9 mm	84%
10Fri	+31°C	+25°C	—	2-3 m/s, NE	1.3 mm	81%
11Sat	+26°C	+24°C	—	6-8 m/s, NW	13.2 mm	90%
12Sun	+27°C	+25°C	—	7-8 m/s, NNE	22.3 mm	90%
13Mon	+30°C	+24°C	—	3-4 m/s, NE	9.4 mm	84%
14Tue	+30°C	+25°C	—	2-3 m/s, NE	2.3 mm	87%
15Wed	+32°C	+25°C	—	3-4 m/s, ESE	5.2 mm	88%
16Thu	+33°C	+25°C	—	3-4 m/s, E	0.4 mm	88%
17Fri	+32°C	+25°C	—	3 m/s, ENE	0 mm	87%
18Sat	+32°C	+24°C	—	2-3 m/s, ESE	0 mm	86%
19Sun	+31°C	+24°C	—	2-4 m/s, ESE	2.8 mm	82%
20Mon	+29°C	+24°C	—	2-3 m/s, NE	5.2 mm	85%
21Tue	+29°C	+25°C	—	2-3 m/s, NE	2.2 mm	86%
22Wed	+30°C	+24°C	—	2-3 m/s, E	0.4 mm	83%
23Thu	+29°C	+24°C	—	3-6 m/s, E	6.3 mm	85%
24Fri	+28°C	+25°C	—	5-6 m/s, ESE	1.3 mm	90%
25Sat	+28°C	+24°C	—	3-4 m/s, ESE	1.6 mm	92%
26Sun	+30°C	+24°C	—	2 m/s, ENE	0.2 mm	82%
27Mon	+32°C	+24°C	—	2-3 m/s, NE	0 mm	84%
28Tue	+30°C	+24°C	—	3 m/s, NE	0.1 mm	85%
29Wed	+32°C	+25°C	—	2-3 m/s, ENE	0.2 mm	84%
30Thu	+33°C	+24°C	—	2-3 m/s, ENE	0.1 mm	83%

Weather highs and lows in in Hoi An for september

Warmest day: 16 september, +33°C
Coldest night: 8 september, +24°C
Max precipitation: 12 september, 22.3 mm
Warmest water: —
Coldest water: —

Climate in Hoi An september

Year: 2021
Average daytime temperature: +30°C
Average nighttime temperature: +25°C
Water temperature: —
Precipitation (month): 95.3 mm
Days with precipitation: 18
Humidity: 84%
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	+31°C	+25°C	—	3-4 m/s, NNE	0 mm	78%
2Wed	+31°C	+25°C	—	2-3 m/s, NE	0 mm	77%
3Thu	+32°C	+25°C	—	3 m/s, E	0.1 mm	79%
4Fri	+31°C	+25°C	—	2-3 m/s, ENE	0.3 mm	79%
5Sat	+32°C	+26°C	—	3 m/s, ENE	1.2 mm	80%
6Sun	+34°C	+26°C	—	2-3 m/s, ESE	0.3 mm	74%
7Mon	+33°C	+26°C	—	2-3 m/s, E	0 mm	75%
8Tue	+32°C	+26°C	—	3 m/s, NE	0.3 mm	78%
9Wed	+31°C	+26°C	—	2-3 m/s, ENE	1.7 mm	80%
10Thu	+31°C	+25°C	—	3-4 m/s, E	0 mm	82%
11Fri	+32°C	+25°C	—	3-4 m/s, E	0 mm	79%
12Sat	+31°C	+25°C	—	3-4 m/s, E	0.1 mm	82%
13Sun	+31°C	+25°C	—	3-4 m/s, E	0.5 mm	81%
14Mon	+31°C	+26°C	—	3-4 m/s, E	0.3 mm	81%
15Tue	+32°C	+25°C	—	2-3 m/s, E	0.1 mm	81%
16Wed	+31°C	+26°C	—	2-3 m/s, NE	0.1 mm	79%
17Thu	+31°C	+26°C	—	3-4 m/s, N	4.8 mm	78%
18Fri	+29°C	+26°C	—	6-7 m/s, E	10.5 mm	88%
19Sat	+29°C	+25°C	—	3 m/s, SSE	0.4 mm	80%
20Sun	+28°C	+25°C	—	2-3 m/s, SE	2.3 mm	82%
21Mon	+30°C	+25°C	—	2-3 m/s, ESE	0.1 mm	82%
22Tue	+30°C	+25°C	—	3-4 m/s, ESE	0 mm	83%
23Wed	+30°C	+25°C	—	3-4 m/s, ESE	0 mm	83%
24Thu	+30°C	+25°C	—	2-3 m/s, ESE	0.1 mm	83%
25Fri	+30°C	+25°C	—	2-3 m/s, ENE	0.1 mm	82%
26Sat	+31°C	+25°C	—	3-4 m/s, ESE	0 mm	83%
27Sun	+30°C	+25°C	—	3-4 m/s, ESE	0.4 mm	82%
28Mon	+30°C	+26°C	—	2-3 m/s, E	1.1 mm	80%
29Tue	+30°C	+25°C	—	2 m/s, NE	3.1 mm	84%
30Wed	+30°C	+26°C	—	2-3 m/s, ENE	0.6 mm	81%

Weather highs and lows in in Hoi An for september

Warmest day: 6 september, +34°C
Coldest night: 1 september, +25°C
Max precipitation: 18 september, 10.5 mm
Warmest water: —
Coldest water: —

Climate in Hoi An september

Year: 2020
Average daytime temperature: +31°C
Average nighttime temperature: +25°C
Water temperature: —
Precipitation (month): 28.5 mm
Days with precipitation: 7
Humidity: 81%
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	+30°C	+25°C	—	2-3 m/s, NE	5 mm	88%
2Mon	+30°C	+24°C	—	2-3 m/s, NNW	14.5 mm	86%
3Tue	+28°C	+24°C	—	3-5 m/s, SSW	14.6 mm	91%
4Wed	+30°C	+25°C	—	2-3 m/s, E	7.5 mm	83%
5Thu	+30°C	+24°C	—	3-4 m/s, WSW	0.5 mm	83%
6Fri	+31°C	+25°C	—	2 m/s, W	0.3 mm	83%
7Sat	+32°C	+25°C	—	3 m/s, ESE	1.3 mm	83%
8Sun	+32°C	+25°C	—	2-3 m/s, E	0 mm	80%
9Mon	+33°C	+25°C	—	2-3 m/s, E	0.1 mm	80%
10Tue	+32°C	+25°C	—	2-3 m/s, E	2.5 mm	81%
11Wed	+31°C	+25°C	—	3 m/s, ESE	0.8 mm	80%
12Thu	+31°C	+24°C	—	2-4 m/s, NE	1.5 mm	83%
13Fri	+30°C	+24°C	—	2-3 m/s, E	0.1 mm	88%
14Sat	+30°C	+24°C	—	2-3 m/s, SE	0.2 mm	87%
15Sun	+30°C	+23°C	—	2-3 m/s, NNE	0.4 mm	86%
16Mon	+30°C	+24°C	—	2-3 m/s, NE	0.1 mm	80%
17Tue	+30°C	+25°C	—	2-3 m/s, NE	0 mm	85%
18Wed	+28°C	+25°C	—	3 m/s, NNW	3.4 mm	89%
19Thu	+29°C	+24°C	—	2-3 m/s, NNE	3 mm	85%
20Fri	+29°C	+23°C	—	2-3 m/s, ENE	3.8 mm	86%
21Sat	+28°C	+23°C	—	2 m/s, NNE	0.6 mm	86%
22Sun	+28°C	+24°C	—	2-3 m/s, ESE	0.1 mm	85%
23Mon	+28°C	+23°C	—	3-4 m/s, NE	0.7 mm	83%
24Tue	+28°C	+23°C	—	3-4 m/s, NNE	1.3 mm	85%
25Wed	+27°C	+23°C	—	2-3 m/s, NE	3.3 mm	88%
26Thu	+29°C	+23°C	—	3-4 m/s, NE	1.3 mm	84%
27Fri	+29°C	+23°C	—	3-4 m/s, NNE	0.5 mm	82%
28Sat	+29°C	+23°C	—	2-3 m/s, NNE	0.8 mm	80%
29Sun	+29°C	+22°C	—	3-4 m/s, NNE	0 mm	84%
30Mon	+29°C	+22°C	—	2-3 m/s, NE	0 mm	82%

Weather highs and lows in in Hoi An for september

Warmest day: 9 september, +33°C
Coldest night: 29 september, +22°C
Max precipitation: 3 september, 14.6 mm
Warmest water: —
Coldest water: —

Climate in Hoi An september

Year: 2019
Average daytime temperature: +30°C
Average nighttime temperature: +24°C
Water temperature: —
Precipitation (month): 68.2 mm
Days with precipitation: 13
Humidity: 84%
Wind: 2 m/s

Weather in Hoi An in September by year

Year	Day	Night	Precipitation	Days with precipitation	Water
2025	+30°C	+25°C	103.7 mm	15	+30°C
2024	+30°C	+25°C	98.3 mm	15	—
2023	+30°C	+25°C	44.1 mm	11	—
2022	+30°C	+25°C	62.6 mm	12	—
2021	+30°C	+25°C	95.3 mm	18	—
2020	+31°C	+25°C	28.5 mm	7	—
2019	+30°C	+24°C	68.2 mm	13	—

Comparison september in Hoi An with other months

Month	Day	Night	Days with precipitation	Sunny days
January	+23°C	+20°C	9	2
February	+25°C	+20°C	6	7
March	+28°C	+22°C	4	7
April	+30°C	+23°C	3	11
May	+32°C	+25°C	6	8
June	+33°C	+26°C	5	8
July	+32°C	+26°C	6	7
August	+32°C	+26°C	8	6
September	+30°C	+25°C	13	2
October	+28°C	+24°C	18	1
November	+26°C	+22°C	15	2
December	+23°C	+21°C	15	1