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Thong Son Beach Weather and Climate: A Comprehensive Guide

Thong Son Beach has pretty similar weather over the course of the year. It also has a notably wet climate with much precipitation. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

The temperature in Thong Son Beach remains steady throughout the year, providing a consistently very warm climate. Average maximum daytime temperatures range from a very warm 31°C in May, the warmest time of the year, to a comfortable 29°C during cooler months like January.

At night, temperatures typically drop to an average of around 26°C during these months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Thong Son Beach has a relatively rainy climate with high precipitation levels, averaging 1726 mm of rainfall annually. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, October receives heavy rainfall, averaging 308 mm of precipitation, recorded across 20 rainy days. In contrast, the drier season, February brings less rainfall, with 45 mm over 5 rainy days. For more details, please visit our Thong Son Beach Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Seasonal changes in sunshine hours are quite dramatic in Thong Son Beach. While March receives considerable daily sunshine with up to 8.0 hours, September marks the darkest time of the year, where sunshine is scarce with only 4.8 hours of sunlight per day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Koh Samui, Thailand (16 KM, 10 Miles).

Daily hours of sunshine

Data from: Koh Samui, Thailand (16 KM, 10 Miles).

Average water temperature

The mean water temperature over the year ranges from 27°C in January to 30°C in April.

Water temperature over the year

Data from: Koh Samui, Thailand (16 KM, 10 Miles).

Forecast for Thong Son Beach

Wed   Jan 15
30°C | 24°C
N 6 m/s
broken clouds and no rain

broken clouds and no rain

Thu   Jan 16
30°C | 24°C
NE 6 m/s
11 mm
partly cloudy and rain

partly cloudy and rain

Fri   Jan 17
31°C | 25°C
NE 6 m/s
1.1 mm
broken clouds and small chance of rain

broken clouds and small chance of rain

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit Thong Son Beach in Thailand

Other facts from our historical weather data:
  • Which months have the greatest rainfall in Thong Son Beach?
    Most rainfall (rainy season) is seen in September, October and November.
  • Which is the hottest month in Thong Son Beach?
    May has an average maximum temperature of 31°C and is the hottest month of the year.
  • Which is the coolest month in Thong Son Beach?
    The coolest month is January with an average maximum temperature of 29°C.
  • Which is the wettest month in Thong Son Beach?
    October tops the wettest month list with 308 mm of rainfall.
  • Which is the driest month in Thong Son Beach?
    February is the driest month with 45 mm of precipitation.
  • Which is the sunniest month in Thong Son Beach?
    March is the sunniest month with an average of 240 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.