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Thailand

Southeast Thailand weather in January 2026

Thailand

Southeast Thailand weather in January 2026

 

Day

31 °C

 

Night

22 °C

 

Sea

28 °C

 

Precipitation

83 mm

in month

 

Rainy days

9 days

in month

 

Daylight

11 hours

average

 

Sunshine

7 hours

average

 

Humidity

79 %

 

Day

31 °C

 

Night

22 °C

 

Sea

28 °C

 

Precipitation

83 mm

in month

 

Rainy days

9 days

in month

 

Daylight

11 hours

average

 

Sunshine

7 hours

average

 

Humidity

79 %

Overview: Southeast Thailand

Southeast Thailand is a popular destination for tourists, known for its beautiful beaches, stunning temples, and vibrant markets. Explore the island of Koh Samui, which offers a range of activities, including swimming, snorkeling, and scuba diving. Koh Phangan, located nearby, famous for its full moon parties, beautiful beaches, and lush jungles. Don't forget to taste local spicy curries, noodle dishes, and fresh seafood.

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Destinations nearby and activities

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Activities in Southeast Thailand

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Sand beaches
in 3 places
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Tropical beaches
in 3 places
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Picturesque beaches
in 3 places
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Scuba diving
🥽🐟
Snorkelling
in 3 places
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Ko Samui Island
Nice beach by the sea with turquise water in Koh Phangan in sunny weather with few clouds
Enjoyable beach with turquise water in Koh Tao on a sunny day with some clouds

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Weather overview and FAQs

Weather overview

In January in Southeast Thailand, the average air temperature ranges from 31 °C (88 °F) during the day to 22 °C (72 °F) at night. There are 9 days of rain on average, where the rainfall is 83 mm (3.27 in).

Are there good conditions to visit in Southeast Thailand in January?

January is one of the best months to visit Southeast Thailand. The temperature during the day will be nice 31 °C (88 °F). The temperature of the sea will be perfect at 28 °C (82 °F). At night, temperatures hover around a pleasant 22 °C (72 °F). There are only 9 days of rain in the whole month, so you can leave your umbrella at home.

What temperature can I expect during the day in January in Southeast Thailand?

In Southeast Thailand in January, the average daily temperatures will be 31 °C (88 °F). The great temperature for lying by the sea or pool and sunbathing, everywhere else you will probably be a bit hot. Don't forget to drink during the day, in these temperatures you should hydrate yourself a lot.

What is the sea temperature in Southeast Thailand in January?

The temperature of the sea in Southeast Thailand in January is 28 °C (82 °F). Seems like an ideal temperature for swimming, you can stay in the sea for a long time and enjoy it as well.

What is the average number of rainy days in Southeast Thailand in January?

In Southeast Thailand in January, we can expect 9 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.1 days of the week, or in general - 30 % days.

What is the night temperature in January in Southeast Thailand?

The average night temperature in Southeast Thailand in January is 22 °C (72 °F). A very pleasant temperature for long evening walks, fun over a drink outside, or doing sports in the morning. If possible, look for a hotel with air conditioning.

Is there a dry season in Southeast Thailand in January?

Yes, there is a dry season in Southeast Thailand in January with just 9 days during the month being rainy.

Is the sea in Southeast Thailand warmer in January than in December?

No, the sea is not warmer in January in Southeast Thailand than in December.

How long is the day (from dawn till dusk) in Southeast Thailand in January?

The length of daylight in Southeast Thailand in January is 11 hours.

How many hours of sun to expect in Southeast Thailand in January?

In January in Southeast Thailand, you can expect around 7 hours of sunshine.

Is the weather in Southeast Thailand warmer in January than in December?

Yes, January in Southeast Thailand is warmer than December by 1 °C (34 °F).

Is it hot in January in Southeast Thailand?

In Southeast Thailand in January, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.

What level of humidity is to expect in January in Southeast Thailand?

In Southeast Thailand in January, expect humidity around 79 %. This humidity is rather above average, but except for sensitive individuals, it should not be a problem.

Is Southeast Thailand rainier in January than in February?

Yes, Southeast Thailand is a rainier January than in February.

What is the temperature trend in Southeast Thailand in January?

Over the course of January in Southeast Thailand, the temperatures are rising from 31 °C (87 °F) at the beginning of the month to 32 °C (89 °F) at the end of the month.

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