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The climate of Chiang Mai (Thailand)
Chiang Mai is located in the northern part of Thailand and is the capital of the Chiang Mai province. The river Ping flows through the city. Chiang Mai was founded in 1296 by king Mengrai. Many temples can be found in the city such as the Wat Chedi Luang, the Wat Chiang Man and Wat Phra Sing temples. The old city centre of Chiang Mai is very popular with tourists. The city has its own cuisine, culture and traditions. Chiang Mai often is used by tourists as a starting point for long hikes. Along the river Ping the famous evening market is held.
Chiang Mai’s climate as well as the climate in all of North Thailand is characterized by the monsoon. The monsoon has three different seasons. The south west monsoon usually comes from India in the end of May and lasts to November. Rainfall is heaviest during the month of September with 250 millimeters of rain on average. However, rainy season doesn’t mean rain falls for days on end. The normal pattern of the last few years is: clear mornings, cloudy afternoons with rain in the late afternoon, dry evenings and sometimes rain during the night. The north east monsoon lasts from the second part of November to early May. Cold air comes from Vietnam and China. During this period rain doesn’t fall in the northern and central part of Thailand with the exception of the so called mango-showers during mango season. The low humidity figures make for a pleasant feel. Differences in temperature between day and night and between seasons are higher than in the rest of the country.


Climate information
The figures below are based on long term weather and climate records. They are an average for Chiang Mai:

temperature (°C)


temperature (°C)
hours of sunshine

average days with precipitation
per month
per month
temperature (°C)
January 28 13 9 2 n/a
February 32 14 10 1 n/a
March 34 17 9 2 n/a
April 36 21 9 7 n/a
May 33 23 8 16 n/a
June 31 23 6 19 n/a
July 31 23 5 21 n/a
August 30 22 5 23 n/a
September 31 22 6 19 n/a
October 30 21 6 13 n/a
November 29 18 8 6 n/a
December 28 14 8 3 n/a
= 0-5 mm ● = 6-30 mm ● = 31-60 mm ● = 61-100 mm ● = 101-200 mm ● = over 200 mm
= 0-0.2 inches ● = 0.2-1.2 inches ● = 1.2-2.4 inches ● = 2.5-4 inches ● = 4.1-8 inches ● = over 8 inches

More climate information
Climate figures are very useful but don’t present a general impression of the climate and the eventual weather circumstances within a certain period. The figures don’t always reflect the chance of wintry weather, extreme heat or hurricanes. That is why we offer useful extra climate information for each month of the year:

chance of
(very) hot


chance of
(very) cool
chance of

chance of
chance of
sunny days


click here for the explanation of the symbols

The information at this site was carefully composed from climate data collected by meteorological services, meteorological offices, climate experts and other sources. “More climate info” is based on statistics, climate data and personal experience. No rights can be derived from this site. Weather has no memory and gives no guaranties. Nothing is as changeable and unpredictable as the weather. The authors of this site feel in no way responsible for any damages caused by misinterpretation or other circumstances that may influence your holiday or trip to a certain destination. We provide information, it’s up to the reader to use it to it’s benefit.


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