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Chaweng Beach Weather and Climate: A Comprehensive Guide

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 maximum day and minimum 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, you can expect cooler temperatures, with averages dropping to around 26°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

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. For more details, please visit our Chaweng Beach Precipitation page.

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. Visit our detailed sunshine hours page for more information.

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 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).

Forecast for Chaweng Beach

Wed   Jan 15
31°C | 25°C
N 5 m/s
broken clouds and no rain

broken clouds and no rain

Thu   Jan 16
30°C | 24°C
NE 5 m/s
11 mm
partly cloudy and rain

partly cloudy and rain

Fri   Jan 17
31°C | 25°C
NE 5 m/s
1.1 mm
broken clouds and  chance of rain

broken clouds and chance of rain

Select a Month of Interest

Check the conditions for any month of the year.

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.