Chiang Mai weather in October
October is still a good time to visit Chiang Mai despite the hot weather and monsoonal downpours, which gradually decrease through the month.
You can expect very hot weather and clear blue skies with around seven hours of sunshine daily, interspersed with brief tropical downpours that bring some welcome relief to the soaring temperatures.
The average temperature is 27°C (81°F). Humidity is high during October.
Frequently asked questions
We answer the most commonly asked questions (FAQs) about Chiang Mai weather in October.
How hot is it in Chiang Mai in October?
Maximum daytime temperatures in Chiang Mai in October reach an average high of 32°C (89°F) with very high heat and humidity, falling to a night-time low of 22°C (71°F).
How sunny is it in Chiang Mai in October?
There are normally 6.5 hours of bright sunshine each day in Chiang Mai in October – that's around 56% of daylight hours.
Sunrise & sunset in October?
Sunrise is around 6:10am with sunset around 6:30pm.
Does it rain in Chiang Mai in October?
There are usually at least 12 days with some rain in Chiang Mai in October; the average monthly rainfall is 120mm (5in).
How windy is it in Chiang Mai in October?
October sees an average hourly wind speed of 3 kilometres per hour (2 mph).
What to do in Chiang Mai in October?
Weather conditions in October are excellent for river rafting as the rivers are swollen with monsoon rain, but it’s not so good for trekking and biking the surrounding countryside given the excessive heat, humidity and occasional torrential downpours.
October is still a good time to explore the cobblestoned sois (alleys) of the Old City and the glittering shrine of Wat Phra That Doi Suthep.
Local holidays?
Chulalongkorn Memorial Day – 24th Oct.
This is the low season in Chiang Mai, with discounted hotel prices and fewer visitors. Sightseeing attractions are less crowded. So if you don't mind getting your feet wet and carrying an umbrella, it’s still a good time to visit.
Chiang Mai weather in October
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High Temp: 32°C (89°F) |
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Low Temp: 22°C (71°F) |
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Sunshine: 6.5 hours per day |
12
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Daylight: 12 hours per day |
 |
Wind speed: 3 km/h (2 mph) |
 |
Wet Days: 12 days with some rain |
 |
Rainfall: 120mm (5in) per month |
 |
Comfort Level: High heat & 76% humidity |
11
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UV Index: Extreme |
| Chiang Mai, Thailand | |
Best time to visit Chiang Mai
The best time to visit Chiang Mai is from mid-November to early-March, when the region is mainly dry and not too hot, typically averaging 28°C (82°F).
Chiang Mai weather by month
Climate source: Meteorological data for Chiang Mai is based on weather statistics gathered for the 30-year period 1991 to 2020 by the Thai Meteorological Department from the closest weather station: Chiang Mai International Airport (CNX), located around 5km (3mi) south of the centre of Chiang Mai.
Advice on the best time to visit Chiang Mai is based on average local weather statistics, when the weather conditions are generally better than at other times of the year. We consider high and low temperatures, risk of rain (and thunderstorms, etc.), amount of sunshine and sea temperature. For general outdoor activities we favour clear, rainless days with a temperature range between 18°C (64°F) and 27°C (80°F); and for hot-weather activities we favour clear, rainless days with a temperature range between 24°C (75°F) and 32°C (89°F). Often, the best times to visit correspond to high season and therefore involve higher prices.
Latest update: Chiang Mai weather in October: 24 August, 2025
Disclaimer: The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data and conditions at any given location and time are unpredictable and variable. We assume no responsibility and can not be held legally responsible for any decisions made on the basis of the information presented on this site.
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