Chaweng Beach Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Chaweng Beach.

Climate overview of Chaweng Beach

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 (8.3 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.

Chaweng Beach Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Chaweng Beach - and find the best time to visit.

Monthly Temperature in Chaweng Beach

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 (88°F) in May. In January, the coolest month of the year, temperatures drop to a comfortable 28°C (82°F).

At night, temperatures range from around 28°C (82°F) in May to 26°C (79°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Chaweng Beach

Chaweng Beach has a relatively rainy climate with high precipitation levels, averaging 1681 mm (66 in) of rainfall annually. Chaweng Beach can be quite wet during October, receiving approximately 302 mm (12 in) of precipitation over 20 rainy days.

In contrast, during the driest month (February), you will experience much drier conditions, with 45 mm (1.8 in) of precipitation 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 Hours in Chaweng Beach

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).

Water Temperature in Chaweng Beach

The mean water temperature over the year ranges from 27°C (81°F) in January to 30°C (86°F) in April.

Water temperature over the year

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

Humidity in Chaweng Beach by Month

Best Time to Visit Chaweng Beach

The most comfortable overall weather for exploring Chaweng Beach is usually found in January and February. Conditions are generally least comfortable in October and November.

Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.

  • Best overall: January and February
  • Warmest weather: March, April, May, June, July, August, September and October
  • Most sunshine: March
  • Fewest rainy days: February and March
  • Best for swimming: Any time of year. The sea stays pleasantly warm year-round.
  • Wettest months: September, October, November and December, when rainfall is highest.

Frequently asked questions about the climate in Chaweng Beach

What is the best time to visit Chaweng Beach?

January and February typically offer the most optimal weather in Chaweng Beach. In contrast, October and November tend to have less optimal conditions.

What temperatures can I expect in Chaweng Beach?

Daytime highs range from 28°C (82°F) in January to 31°C (88°F) in May. Nighttime lows range from 26°C (79°F) to 28°C (82°F). Temperatures stay relatively stable year-round.

How much rain does Chaweng Beach get?

Annual rainfall is around 1681 mm (66 in). October is the wettest month with 302 mm (12 in), while February is the driest with 45 mm (1.8 in).

How sunny is Chaweng Beach?

Chaweng Beach receives around 2,151 hours of sunshine per year. March is the sunniest month with 240 hours, while September is the cloudiest with just 145 hours. Overall, Chaweng Beach enjoys abundant sunshine.

Chaweng Beach 3-Day Forecast

Chaweng Beach on the map

Chaweng Beach is highlighted - select any city to see its climate.

Popular this month

Where to go in August - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.