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Chiang Rai Climate by Month

The weather in Chiang Rai sees moderate temperature fluctuations over the course of a year. Temperatures can be very hot at the high end to roughly warm at the low end. It also has a relatively rainy climate with high levels of precipitation. Now, let’s explore all the climate details to give you a full picture.

Average day and night temperature

The weather in Chiang Rai changes moderately throughout the year, offering enough variation to appreciate each season. On average, daytime temperatures range from a very hot 36°C in April to a comfortable 28°C in January. Nighttime temperatures can drop, with averages reaching 15°C in January.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Chiang Rai experiences significant rainfall throughout the year, averaging 1937 mm of precipitation annually. The seasons in Chiang Rai, bring significant changes in precipitation. The wettest month, August, receives heavy rainfall, with an average of 366 mm of precipitation. This rainfall is distributed across 23 rainy days. In contrast, the driest month, February, experiences much less rainfall, totaling 14 mm over a single rainy day. These distinct seasonal differences provide diverse experiences throughout the year.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

In Chiang Rai, summer days are longer and more sunny, with daily sunshine hours peaking at 9.8 hours in March. As the darker season arrives, the brightness of the sun becomes less. August sees a soft sun for only 3.9 hours.

Monthly hours of sunshine

Daily hours of sunshine

The best time of year to visit Chiang Rai in Thailand

Chiang Rai has high temperatures year round ranging between 28°C and 35°C.
The best time to visit is during the drier months: January, February, March, November and December.

Other facts from our historical weather data:
  • When is the rainy season in Chiang Rai?
    Rainy season in Chiang Rai occurs in the months of May, June, July, August and September.
  • Which is the hottest month in Chiang Rai?
    April has an average maximum temperature of 36°C and is the hottest month of the year.
  • Which is the coolest month in Chiang Rai?
    The coolest month is January with an average maximum temperature of 28°C.
  • Which is the wettest month in Chiang Rai?
    August tops the wettest month list with 366 mm of rainfall.
  • Which is the driest month in Chiang Rai?
    February is the driest month with 14 mm of precipitation.
  • Which is the sunniest month in Chiang Rai?
    March is the sunniest month with an average of 295 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Chiang Rai

    Thu   Nov 21
    29°C | 19°C
    NE 11 km/h
    almost clear and no rain

    almost clear and no rain

    Fri   Nov 22
    30°C | 19°C
    NE 11 km/h
    clear and no rain

    clear and no rain

    Sat   Nov 23
    30°C | 18°C
    E 11 km/h
    clear and no rain

    clear and no rain