Weather in Chiang Mai in January

January in Chiang Mai is warm outdoor weather. Days are long enough to be useful. Shade starts to matter at midday.

In Thailand, this is how Chiang Mai actually wears January, not how a country centroid would. Compared with April and December, January sits in the middle of Chiang Mai's year.

Chiang Mai
Average temp
23°C

16–30°C

Rainfall
8 mm

Not much rain

Sunshine
8.5 h

hours per day

What to expect

Daytime

Warm days in Chiang Mai in January. A hat starts to earn its keep at midday. Evenings are the comfortable part of the clock.

You can walk at more hours than in the fierce months. Still build in a pause when the sun is high. Nights are easy.

Rain

Rain is not the story in Chiang Mai in January. Pack for sun. A shower would be news, not a plan.

Do not build the trip around weather windows. Build it around shade if it is hot, and around getting outside if it is not.

Evening

Evenings are cooler. A layer helps after sunset.

What to pack

  • Sun protection

  • A layer for cooler evenings

Where to stay in Chiang Mai

Dates are a starting point for January.

All hotels in Chiang Mai

Travel guides for Chiang Mai

What to read before you book.

All travel guides in Chiang Mai

Average weather in Chiang Mai

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 28 Aug 2026265 places covered

Check another month

This is the month you are reading. Change either side to look at another.

FAQs about Chiang Mai

Climate averages for Chiang Mai, 1991–2020.

The best time to visit Chiang Mai is between October and March, the most comfortable stretch of the year on these averages.

April is the hottest month, with an average around 30°C.

August is the wettest month, with about 234 mm of rain.

No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.