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Weather in Chiang Mai

Chiang Mai · North

Here you can see how warm it gets in Chiang Mai month by month, how much rain falls and when the best time to visit is. The figures are long-term averages from the Thai weather service, not a forecast.

Best time to visitNovember to Februarylittle rain, not too hot
Wettest month
217 mm
in August
Hottest month
36 °C
by day in April
Coolest night
15 °C
in January

Chiang Mai through the yearTemperature and rain

Climate by month for Chiang Mai: highest temperature and rain
All values as a table
Highest temperature and rain per month, Thai Meteorological Department (TMD), climate averages 1981 to 2010, rounded
MonthChiang Mai (North)
Jan30° / 15° at night · 4 mm
Feb33° / 16° at night · 9 mm
Mar35° / 20° at night · 18 mm
Apr36° / 23° at night · 57 mm
May34° / 24° at night · 162 mm
Jun33° / 24° at night · 124 mm
Jul32° / 24° at night · 140 mm
Aug32° / 24° at night · 217 mm
Sept32° / 23° at night · 211 mm
Oct31° / 22° at night · 118 mm
Nov30° / 19° at night · 54 mm
Dec29° / 16° at night · 16 mm

Source: Thai Meteorological Department (TMD), climate averages 1981 to 2010, rounded. Temperature = average daily high, rain = monthly total. Individual years can differ considerably.

Weather in Chiang Mai month by month

Chiang Mai in January

In January, daytime temperatures in Chiang Mai average 30 °C, with 15 °C at night. With around 4 millimetres of rain, January is very dry. It is part of the best time to visit.

Chiang Mai in February

In February, daytime temperatures in Chiang Mai average 33 °C, with 16 °C at night. With around 9 millimetres of rain, February is very dry. It is part of the best time to visit.

Chiang Mai in March

In March, daytime temperatures in Chiang Mai average 35 °C, with 20 °C at night. With around 18 millimetres of rain, March is very dry.

Chiang Mai in April

In April, daytime temperatures in Chiang Mai average 36 °C, with 23 °C at night. With around 57 millimetres of rain, April is dry. This is the hottest month of the year.

Chiang Mai in May

In May, daytime temperatures in Chiang Mai average 34 °C, with 24 °C at night. With around 162 millimetres of rain, May is a rainy season month.

Chiang Mai in June

In June, daytime temperatures in Chiang Mai average 33 °C, with 24 °C at night. With around 124 millimetres of rain, June is a rainy season month.

Chiang Mai in July

In July, daytime temperatures in Chiang Mai average 32 °C, with 24 °C at night. With around 140 millimetres of rain, July is a rainy season month.

Chiang Mai in August

In August, daytime temperatures in Chiang Mai average 32 °C, with 24 °C at night. With around 217 millimetres of rain, August is a rainy season month. This is the wettest month of the year.

Chiang Mai in September

In September, daytime temperatures in Chiang Mai average 32 °C, with 23 °C at night. With around 211 millimetres of rain, September is a rainy season month.

Chiang Mai in October

In October, daytime temperatures in Chiang Mai average 31 °C, with 22 °C at night. With around 118 millimetres of rain, October is a rainy season month.

Chiang Mai in November

In November, daytime temperatures in Chiang Mai average 30 °C, with 19 °C at night. With around 54 millimetres of rain, November is dry. It is part of the best time to visit.

Chiang Mai in December

In December, daytime temperatures in Chiang Mai average 29 °C, with 16 °C at night. With around 16 millimetres of rain, December is very dry. It is part of the best time to visit.

Frequently asked questions about the weather in Chiang Mai

When is the best time to visit Chiang Mai?

The best time to visit Chiang Mai is November to February. In these months an average of 4 to 54 millimetres of rain falls, and daytime temperatures reach 29 to 33 °C.

When is the rainy season in Chiang Mai?

On average, more than 100 millimetres of rain a month fall in Chiang Mai from May to October. The most rain falls in August, with around 217 millimetres, the least in January, with around 4 millimetres.

When is it hottest in Chiang Mai?

It is hottest in April, with an average of 36 °C by day. The coolest nights are in January, at around 15 °C.

Getting there, places to stay and day trips: Destination Chiang Mai

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