Chiang Mai weather
in December
“Reliably warm, dry, and generous with light.”
Roughly 3 rainy days across the month, on average.
In december, Chiang Mai settles into its warmer, more generous mood. The city keeps a different pulse than in summer or midwinter, and travellers who arrive with the right expectations are rewarded.
Days average around 27°C (81°F), cooling to 17°C after sunset. Rain is rare enough that you can plan without a contingency. Long days of sunshine reward early starts.
These figures are climatological averages, drawn from a decade of daily records via the Open-Meteo Archive — not a forecast. But they are honest, and they are the sort of thing a good travel guide ought to tell you before you book the flight.
What to pack for Chiang Mai in December
- •Breathable cotton or linen, and a broad-brimmed hat
- •Reef-safe sunscreen and polarised sunglasses
- •Comfortable, broken-in walking shoes
- •A small daypack that won't look like a tourist beacon
What to pack for Chiang Mai in December
- →Quick-dry travel shirtAmazon · shop this
- →UPF sun hatAmazon · shop this
- →Reef-safe sunscreen SPF 50Amazon · shop this
- →Polarized sunglassesAmazon · shop this
- →Universal travel adapterAmazon · shop this
- →Compression packing cubesAmazon · shop this
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Where to stay in Chiang Mai
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Compare hotels on Booking.com→Other places with a similar climate right now
Chiang Mai in December — FAQ
Q01Is December a good time to visit Chiang Mai?
Is December a good time to visit Chiang Mai?
Yes — this is one of the best months of the year to visit. In December, Chiang Mai averages a high of 27°C (81°F) and a low of 17°C (63°F), with 24mm of rainfall across roughly 3 rainy days.
Q02What is the average temperature in Chiang Mai in December?
What is the average temperature in Chiang Mai in December?
The average high temperature in Chiang Mai during December is 27°C (81°F), with an average low of 17°C (63°F). These figures are averaged from ten years of daily records (2015–2024, Open-Meteo Archive).
Q03How many rainy days does Chiang Mai have in December?
How many rainy days does Chiang Mai have in December?
Chiang Mai averages approximately 3 rainy days in December, with a total monthly rainfall of about 24mm. This is based on daily precipitation records where days with 1mm or more of rain are counted as rainy days.
Q04What should I pack for Chiang Mai in December?
What should I pack for Chiang Mai in December?
For Chiang Mai in December, pack light, breathable clothing (cotton or linen), sunscreen and sunglasses, comfortable walking shoes. These recommendations are based on the ten-year weather averages for this specific month.
Q05How crowded is Chiang Mai in December?
How crowded is Chiang Mai in December?
Tourist crowds in Chiang Mai during December are typically moderate — winter is high season for tropical destinations. Consider this when planning accommodation — prices track crowd levels closely.