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Chaweng Beach Climate by Month

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 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.

Average day and night temperature

The temperature in Chaweng Beach remains steady throughout the year, providing a consistently very warm climate. Average daytime temperatures reach a very warm 31°C in May. In January, the coolest month of the year, temperatures drop to a comfortable 28°C. At night, expect cooler temperatures, averaging 26°C during this month.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Chaweng Beach has a relatively rainy climate with high precipitation levels, averaging 1681 mm of rainfall annually. Chaweng Beach can be quite wet during October, receiving approximately 302 mm of precipitation over 20 rainy days.

In contrast February, experiences much drier conditions, with 45 mm of rainfall, spread across 5 rainy days.

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

Sunshine over the year

Chaweng Beach can be enjoyed more throughout the sunniest month of March under a blue sky, with approximately 8.0 hours of sunshine daily. In contrast, the city experiences much darker days in September, with only 4.8 hours of sunlight per day.

Monthly hours of sunshine

Data from: Koh Samui, Thailand (13 KM, 8 Miles).

Daily hours of sunshine

Data from: Koh Samui, Thailand (13 KM, 8 Miles).

Average water temperature

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

Water temperature over the year

Data from: Koh Samui, Thailand (13 KM, 8 Miles).

The best time of year to visit Chaweng Beach in Thailand

Other facts from our historical weather data:
  • Which months have the greatest rainfall in Chaweng Beach?
    Most rainfall (rainy season) is seen in September, October, November and December.
  • Which is the hottest month in Chaweng Beach?
    May has an average maximum temperature of 31°C and is the hottest month of the year.
  • Which is the coolest month in Chaweng Beach?
    The coolest month is January with an average maximum temperature of 28°C.
  • Which is the wettest month in Chaweng Beach?
    October tops the wettest month list with 302 mm of rainfall.
  • Which is the driest month in Chaweng Beach?
    February is the driest month with 45 mm 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 have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Chaweng Beach

    Thu   Dec 12
    29°C | 25°C
    NE 14 km/h
    35 mm
    overcast and thunder

    overcast and thunder

    Fri   Dec 13
    28°C | 25°C
    E 11 km/h
    54 mm
    overcast and heavy rain

    overcast and heavy rain

    Sat   Dec 14
    28°C | 24°C
    E 11 km/h
    79 mm
    overcast and heavy rain

    overcast and heavy rain