Climate averages 1991–2020
Chiang Mai weather
in October.
A hot, wet month: the 9th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a hot month in Chiang Mai: daytime highs average 28.9°C and nights cool to about 21.5°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 114 mm of rain on roughly 16 days, which makes October a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 44 min on an average October day.
The nearest other city in this atlas is Lampang (77 km away). In October its highs average 29.0°C, about as warm as Chiang Mai, with 126 mm of rain.
Among the 46 cities listed in Thailand, Chiang Mai ranks 42nd of 46 for the warmest October highs and 4th of 46 for the driest October (rainfall, lowest first). The mean October high of those 46 cities is 29.9°C; Chiang Mai is 0.9°C cooler than that mean.
From October to November, average highs fall by 0.6°C to 28.3°C, and monthly rainfall falls from 114 mm to 21 mm.
The annual picture
October in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Chiang Mai climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.1°C16.2°C | 16.2°C | 6.7 | 1.3 | 11.111 h |
| February | 31.3°C18.4°C | 18.4°C | 3.3 | 0.7 | 11.512 h |
| March | 34.3°C21.7°C | 21.7°C | 12 | 2.1 | 12.012 h |
| April | 35.8°C24.5°C | 24.5°C | 26 | 4.3 | 12.613 h |
| May | 33.1°C24.6°C | 24.6°C | 99 | 13.1 | 13.013 h |
| June | 30.9°C24.1°C | 24.1°C | 120 | 18.3 | 13.213 h |
| July | 29.9°C23.8°C | 23.8°C | 175 | 21.9 | 13.113 h |
| August | 29.1°C23.4°C | 23.4°C | 236 | 25.0 | 12.813 h |
| September | 29.3°C22.9°C | 22.9°C | 227 | 23.4 | 12.312 h |
| October, selected | 28.9°C21.5°C | 21.5°C | 114 | 15.7 | 11.712 h |
| November | 28.3°C18.8°C | 18.8°C | 21 | 4.0 | 11.311 h |
| December | 27.1°C16.0°C | 16.0°C | 9.1 | 1.2 | 11.011 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
October in nearby cities
- Lampang in OctoberThailand · 77 kmHigh 29.0°C · Low 22.5°C · 126 mm rain
- Chiang Rai in OctoberThailand · 153 kmHigh 28.4°C · Low 21.6°C · 139 mm rain
- Nyaunglebin in OctoberMyanmar · 256 kmHigh 30.2°C · Low 23.3°C · 155 mm rain
- Taungoo in OctoberMyanmar · 269 kmHigh 29.9°C · Low 23.2°C · 96 mm rain
- Thaton in OctoberMyanmar · 269 kmHigh 30.4°C · Low 24.2°C · 215 mm rain
- Mawlamyine in OctoberMyanmar · 293 kmHigh 30.2°C · Low 24.2°C · 163 mm rain
- Yawnghwe in OctoberMyanmar · 299 kmHigh 26.5°C · Low 18.8°C · 90 mm rain
- Taunggyi in OctoberMyanmar · 301 kmHigh 23.4°C · Low 15.6°C · 90 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Chiang Mai) is explained once on the Chiang Mai year overview and on the Sources, method and limits page.