Photo: Can't take much more of this terrible Ko Phetra weather!

Weather in Thailand in January

What would you like to know about the weather in Thailand?

Thailand weather map


January is peak season in Thailand and there is a reason for that — the weather is great. Both the Gulf and Andaman coasts will be seeing a lot of sunshine with little to very infrequent rain. Temperatures will oscillate around the low 20s to low 30s mark.


Where are the best places in Thailand in January? Consider:

January weather summary

Avg min
temp. (°C)
Avg max
temp. (°C)
rainfall (mm)
Chiang Mai
Khon Kaen
Ko Chang
Hua Hin
Ko Samui

Where is best in Thailand in January?

No destination is off limits in January. Booking rooms in advance is smart if you’re hitting any popular destination on or just after Western New Year, which is one of the busiest — and priciest — times of year. Also check to see if the Chinese New Year falls during January, as this is another very busy period at destinations like Phuket, Chiang Mai, Ao Nang and others that are popular with mainland Chinese travellers. No matter where you’re going, do pack a sweater as evenings, in particular, can get cool.

Popular hotels in Thailand on Agoda

What are the most popular Thai islands in January?

Late December and early January is peak season on virtually every Thai island, with rooms on popular islands that have limited space — like Ko Lipe, Ko Phi Phi, Ko Tao and Ko Samet — often filling to capacity. Do plan ahead of time. While also busy compared to other months, lesser-known islands like Ko Kut, Ko Muk and Ko Phra Thong can be good options for avoiding the thickest crowds.

Bangkok and Central Thailand

Bangkok and Central Thailand will be relatively cool and as with the south, expect very little, if any, rain. The evenings may even be slightly cool.

Eastern Thailand

Temperatures will be around the same as Bangkok and Central Thailand, though there will be a little more rain — perhaps 3 to 4 days of rain in the month. Despite the slight extra rain, this is one of the best times of the year weather-wise to visit the eastern islands like Ko Chang and Ko Kut.

Northern Thailand

The climate in Northern Thailand is lovely this time of year. Evenings, especially in the far north will be chilly while daytime temperatures will have a wide range from the low teens to the high twenties. Those going trekking will want to check that blankets are a part of the package! Don't be surprised if you see no rain at all in January.

Rainfall and temperature chart for Thailand in January

Northeast Thailand

The Northeast's weather in January is really an extension of Central Thailand, albeit a little cooler come the evenings. Expect little to no rain. This is a good time to visit the northeast.

Southeast Thailand

On the Gulf Islands and the southeast coast, expect temperatures in the mid twenties. You will have some rain — especially in the provinces of Surat Thani (including Ko Samui, Ko Pha Ngan and Ko Tao) and Nakhon Si Thammarat. The northern coast though, from Chumphon north is far drier.

Southwest Thailand

January is one of the best months of the year weather-wise to visit the Andaman Coast of Thailand centred around Phuket and Trang. It is one of the driest months of the year (though there will be a little rain) and the temperature sits around the mid 20s to low 30s range.

Thailand weather by month

Follow the links below for a Thailand weather summary for each month of the year.

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