Chiang Mai in October:
seriously hot,

Chiang Mai, Thailand · Records from 2006 to 2025. Not a forecast.

Mean high32°Hottest day 35.8° (2009)
Mean low23°Coldest night 16.4° (2010)
Rain days10 days6-16 by year
Rainfall170mmDaylight 12.0 → 11.5 h
Chiang Mai's 12 months iBest: December and January
Trip types Sightseeing on foot Poorhot and muggy
Humidity83%31 muggy days
Clear days4 days11 overcast days
Mean wind4 km/hRarely windy
Sunrise / sunset (15th)06:18 / 18:02Daylight 12.0 → 11.5 h

Chiang Mai in October

Rain falls off noticeably. It is still the tail of the wet season, so some wet days remain. The cool dry season usually starts in November, so bunch outdoor plans onto the clear days.

Chiang Mai in October ran hot: 32°C by day and 23°C at night. By midday the shade was the best seat in town. About 10 days a month saw rain, enough that a wet-weather plan was worth having. The driest year, 2012, had 6 rain days; the wettest, 2010, had 16.

This was the last frequently wet month; rain eased to about 4 days the month after. 26 days past 30°C made it a month for early starts and a long lunch indoors. Each rainy day brought about 17 mm, closer to downpours than drizzle.

Typhoons i No tropical storm passed within 300 km in this month over the last 20 years. Typhoons: May

Date by date i

Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
1-3rain on 67% of days32° 24°
4-10rain on 39% of days32° 23°
11-17rain on 40% of days32° 23°
18-24rain on 20% of days32° 22°
25-31rain on 16% of days32° 22°

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

1-3rain on 67% of days32° 24°
4-10rain on 39% of days32° 23°
11-17rain on 40% of days32° 23°
18-24rain on 20% of days32° 22°
25-31rain on 16% of days32° 22°
Tap another date to change

200631mm
20077mm
20084mm
20093mm
201030mm
201177mm
20127mm
20133mm
2014none
20153mm
201655mm
20177mm
201820mm
2019none
20203mm
2021none
202218mm
2023none
2024106mm
2025none
Holidays in October (2026)
  • October 13 King Bhumibol Adulyadej the Great Memorial Day
  • October 23 to October 25 Chulalongkorn Day long weekend
  • October 12 Columbus Day

1 Local public holiday or break (busier, pricier)1 US holidays (flights fill up)

Day by day temperature i

20°26°31°37° 1815222931

Mean high Mean low Coldest to warmest high in 20 years

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
7 d 8 d
2007
5 d 12 d
2008
2 d 12 d
2009
2 d 8 d
2010
3 d 16 d
2011
3 d 11 d
2012
2 d 6 d
2013
2 d 13 d
2014
2 d 7 d
2015
1 d 6 d
2016
2 d 12 d
2017
6 d 15 d
2018
0 d 7 d
2019
1 d 8 d
2020
3 d 11 d
2021
1 d 11 d
2022
5 d 11 d
2023
5 d 13 d
2024
2 d 9 d
2025
1 d 6 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
12
13
15
9
7
10
8
7
5
9
8
7
8
6
10
9
8
3
5
4
4
5
5
2
3
2
3
3
4
6
2
Rain days on trip
75223322212601315521

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

One row per year, one cell per day. 2012 had 6 rain days, 2010 had 16.

Chiang Mai through the year

MonthHighLowRain daysRainfall
JanuaryGood 30°16°1 day14mm
February 33°17°1 day3mm
March 35°20°2 days20mm
April 37°23°5 days57mm
May 35°24°12 days181mm
June 33°25°11 days108mm
July 32°24°15 days162mm
August 32°24°17 days219mm
September 32°24°14 days198mm
October 32°23°10 days170mm
November 31°20°4 days52mm
DecemberGood 29°17°1 day10mm

Common questions

Does it rain a lot in Chiang Mai in October?

Over the past 20 years October averaged 10 rain days (1 mm or more) out of 31. Individual years ran from 6 in the driest to 16 in the wettest.

What should I wear in Chiang Mai in October?

Days averaged 32°C and nights 23°C. Pack a compact umbrella, T-shirts, sunscreen plus a hat, and insect repellent.

Is October a good time to visit Chiang Mai?

On warmth and rain days alone, Chiang Mai's easiest months were December and January. October ranked 6 of 12.

Is Chiang Mai humid in October?

Mean relative humidity was 83%, with about 31 muggy days (dew point of 20°C or more) in the month.