Hoi An in October:
properly hot, rain every other day

Hoi An, Vietnam · Records from 2006 to 2025. Not a forecast.

Mean high30°Hottest day 34.5° (2025)
Mean low24°Coldest night 21.2° (2010)
Rain days18 days9-29 by year
Rainfall760mmDaylight 12.0 → 11.6 h
Hoi An's 12 months iBest: January to March
Trip types Beach Poorfrequent rain and storm riskSightseeing on foot Poorhot, frequent rain, muggy and storm risk
Humidity85%31 muggy days
Clear days2 days17 overcast days
Mean wind10 km/hRarely windy
Sea temperature28.7°28.3-29° by year (last 6)
Sunrise / sunset (15th)05:38 / 17:26Daylight 12.0 → 11.6 h

Hoi An in October

The most wet days of the year and among the highest flood risks. When the Thu Bon overflows, the riverside Old Town goes under first, and water usually recedes within one to three days. Travellers should cut back plans and follow local guidance.

October brought serious heat to Hoi An, 30°C on a typical afternoon and 24°C overnight. Early mornings were the best time to be outside. Rain fell on more than half the days: 18 on average. Year to year it swung widely, from 9 rain days in 2012 to 29 in 2007.

16 days past 30°C made it a month for early starts and a long lunch indoors. Rain days averaged 42 mm each, so when it rained it rained properly.

Typhoons i

10 of the last 20 years had a tropical storm pass within 300 km this month.

  • Nari (2013), 17 km away typhoon strength
  • Xangsane (2006), 35 km away typhoon strength
  • Trami (2024), 53 km away tropical storm
1 2 3 4 5 6 27 38 109 1010 411 112

Date by date i

Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
1-3rain on 55% of days31° 25°
4-10rain on 51% of days31° 24°
11-17rain on 69% of days30° 24°
18-24rain on 52% of days30° 24°
25-31rain on 63% of days29° 23°

0-5/206-8/209-11/2012-20/20

1-3rain on 55% of days31° 25°
4-10rain on 51% of days31° 24°
11-17rain on 69% of days30° 24°
18-24rain on 52% of days30° 24°
25-31rain on 63% of days29° 23°
Tap another date to change

2006none
200722mm
20082mm
2009none
20107mm
20118mm
2012none
2013none
201412mm
201560mm
201644mm
20174mm
201815mm
2019none
2020109mm
202127mm
20224mm
2023134mm
20242mm
20254mm
Holidays in October (2026)
  • October 12 Columbus Day

1 US holidays (flights fill up)

Your trip dates, the past 20 years

Trip dates ~

You can also click two dates on the axis. Hover a cell to see that day's rain.
Trip rain days Month rain days
2006
2 d 13 d
2007
6 d 29 d
2008
2 d 21 d
2009
0 d 11 d
2010
4 d 19 d
2011
4 d 22 d
2012
4 d 9 d
2013
1 d 18 d
2014
4 d 18 d
2015
4 d 13 d
2016
4 d 16 d
2017
4 d 15 d
2018
2 d 11 d
2019
1 d 13 d
2020
6 d 24 d
2021
6 d 25 d
2022
7 d 22 d
2023
6 d 20 d
2024
3 d 21 d
2025
2 d 22 d
Years with rain
Tap a date to start, tap another to end. Each cell is that date in one year.
'06'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25
of 20
10
11
12
11
8
11
11
11
10
10
14
14
15
13
14
14
12
12
15
7
9
8
11
11
12
13
13
12
11
14
13
Rain days on trip
26204441444421667632

No rain1-9 mm10 mm or more Dates outside your trip are dimmed.

One row per year, one cell per day. 2012 had 9 rain days, 2007 had 29.

Hoi An through the year

MonthHighLowRain daysRainfallSea
JanuaryGood 25°19°9 days85mm 24°
FebruaryGood 26°20°4 days24mm 23°
MarchGood 29°22°3 days27mm 24°
April 31°24°4 days64mm 26°
May 34°26°4 days86mm 28°
June 35°27°5 days61mm 30°
July 35°26°8 days105mm 30°
August 35°26°9 days142mm 30°
September 33°25°13 days404mm 30°
October 30°24°18 days760mm 29°
November 28°23°17 days460mm 27°
December 26°21°15 days246mm 26°

Common questions

Does it rain a lot in Hoi An in October?

Over the past 20 years October averaged 18 rain days (1 mm or more) out of 31. Individual years ran from 9 in the driest to 29 in the wettest.

What should I wear in Hoi An in October?

Days averaged 30°C and nights 24°C. Pack an umbrella, sandals that can get wet, T-shirts, sunscreen plus a hat, a swimsuit, and insect repellent.

Can you swim in Hoi An in October?

Sea surface temperature averaged 28.7°C in October, warm enough to stay in for a long swim. Year to year it ranged 28.3-29°C. Check local flags for waves and jellyfish on the day.

Is October a good time to visit Hoi An?

On warmth and rain days alone, Hoi An's easiest months were January to March. October ranked 10 of 12.

Is Hoi An humid in October?

Mean relative humidity was 85%, with about 31 muggy days (dew point of 20°C or more) in the month.