Climate in Chaweng Beach (Koh Samui), Thailand

The graphs below show the monthly weather averages over the year.
* Climate data from: Ko Samui, Thailand (13 KM, 8 Miles).

Average day and night temperature

The mean minimum and maximum temperatures over the year. Show in Fahrenheit

Average min and max temperatures in Ko Samui, Thailand   Copyright © 2022  weather-and-climate.com

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly sunhours in Ko Samui, Thailand   Copyright © 2022  weather-and-climate.com

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Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc. Show in Inches

Average precipitation (rain/snow) in Ko Samui, Thailand   Copyright © 2022  weather-and-climate.com

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Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average rainy days (rain/snow) in Ko Samui, Thailand   Copyright © 2022  weather-and-climate.com

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Average humidity

The mean monthly relative humidity over the year

Average relative humidity in Ko Samui, Thailand   Copyright © 2022  weather-and-climate.com

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Weather Forecasts for Chaweng Beach (Koh Samui)

THU May 26
31°C | 28°C
Moderate rain

Moderate rain

FRI May 27
31°C | 28°C
Patchy rain possible

Patchy rain possible

SAT May 28
28°C | 27°C
Heavy rain

Heavy rain

The best time of year to visit Chaweng Beach in Thailand

Chaweng Beach has a Tropical savanna climate. It is warm and humid for most of the year. In comparison to Phuket and most of the rest of southern Thailand, Chaweng's weather is relatively drier. Phuket's wet season is spread over six to eight months. Chaweng Beach has only two months with more than 212 mm (8 in) of rain). The heaviest precipitation typically falls in the months of October and November. For the rest of the year, given the tropical climate, rain showers are brief; 20–60 minutes duration is typical.

Other facts from our historical climate data:

  • What is the temperature like year round in Chaweng Beach?
    It has high temperatures all year round ranging between 29°C (84°F) and 33°C (91°F).
  • When is rainy season in Chaweng Beach?
    The wet season / rainy season takes place in the following months: May, October, November and December. This is the time of year where the majority of Chaweng Beach's annual precipitation occurs.
  • Which is the warmest month in Chaweng Beach?
    May has an average maximum temperature of 33.0°C (91.4°F) and is the warmest month of the year.
  • Which is the coldest month in Chaweng Beach?
    The coldest month is January with an average maximum temperature of 29.0°C (84.2°F).
  • Which is the wettest month in Chaweng Beach?
    November tops the wettest month list with 508mm (20.0in) of rainfall.
  • Which is the driest month in Chaweng Beach?
    February is the driest month with 52mm (2.0in) of precipitation.
  • Which is the sunniest month in Chaweng Beach?
    March is the sunniest month with an average of 240 hours of sunshine.

  • No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.