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Chaweng Beach Weather in August

Thinking of visiting Chaweng Beach in August? Expect very high temperatures reaching 30°C (86°F) during the day, dropping to 27°C (81°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in Chaweng Beach in August

Typically around 17 days of rainfall are expected, averaging 107 mm (4.2 in) for the month. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.

Temperature in Chaweng Beach in August

If you're visiting Chaweng Beach in August, expect highs of 30°C (86°F) and overnight lows around 27°C (81°F). The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. Nights are warm at 27°C (81°F), which can make sleeping uncomfortable. Keeping windows open or using a fan can help. A cold shower before bed is also a good way to cool down.

Sunshine in Chaweng Beach in August

The area enjoys a balanced 152 hours of sunlight, ensuring it's neither too overcast nor too sunny.

Average water temperature in August

At 29°C (84°F), the water is very warm — more like a heated pool than the sea. Great for those who like warm water, though some may find it less refreshing on a hot day.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. January and February typically offer the best weather for Chaweng Beach.

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit Thailand, check out our Chaweng Beach's climate page.

Chaweng Beach Temperature in August

Min TemperatureMin Temperature 27°C (81°F)  
Max TemperatureMax Temperature 30°C (86°F)  
Water TemperatureWater Temperature 29°C (84°F) *  
Chance of RainChance of Rain 56%  
PrecipitationPrecipitation 107 mm (4.2 in)  
Rainy daysRainy days 17 days  
HumidityHumidity 78% *  
SunshineSunshine 152 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Koh Samui, Thailand (13 KM, 8 Miles).

Daily Historical Temperatures

49-year average (1976-2025)

Based on our historical records, temperatures in Chaweng Beach typically stay consistent throughout August, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 26°C (79°F).

Average temperatures in August

Daily Historical Precipitation

49-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in August

Historical weather for Chaweng Beach in August

Browse day-by-day weather records for Chaweng Beach spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Chaweng Beach historical weather extremes in August

The extremes listed below come from historical weather data collected in Chaweng Beach from 1982 through 2025.

  • The warmest day in August was on August 4, 1990, with a maximum of 40°C (104°F).
  • On August 24, 1997, Chaweng Beach saw its coldest August day with temperatures maxing out at 25°C (77°F).
  • Nighttime temperatures dropped to 22°C (72°F) on August 31, 1995, marking the coldest August night on record.

Best Places in Thailand in August

Find out more about the weather in Thailand and which places have the best travel conditions in this month. See all of Thailand in August →

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Chaweng Beach in August

Warm temperatures in August make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. The water temperature sits at about 29°C (84°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Chaweng Beach in August

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming
7/10
Cycling
7/10
Walking
7/10
Camping
7/10
Outdoor sports
7/10

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit Thailand, check out our Chaweng Beach's climate page.

More climate data for Chaweng Beach