Chaweng Beach Weather in July

With daytime temperatures of 30°C (86°F) and nighttime lows of 27°C (81°F), July in Chaweng Beach brings very high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 98 mm (3.9 in) falls on average.

Rainfall in Chaweng Beach in July

Expect around 17 days of rain based on historical data, with 98 mm (3.9 in) average. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Chaweng Beach in July

Temperatures in Chaweng Beach in July top out at 30°C (86°F) and drop to 27°C (81°F) overnight. Indoor breaks or shaded spots can make the warmer part of the day much more 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 July

You can expect a moderate amount of sunlight, with approximately 156 hours. This means a pleasant mix of sun and overcast.

Average water temperature in July

At 29°C (84°F), the water feels bath-warm. Fine for swimming, but those looking for a cooling swim may be a bit disappointed.

If you prefer dry days with pleasant temperatures, January and February typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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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 July

Min Temperature 27°C (81°F)  

Max Temperature 30°C (86°F)  

Water Temperature 29°C (84°F) *  

Chance of Rain 55%  

Precipitation 98 mm (3.9 in)  

Rainy days 17 days  

Humidity 78% *  

Sunshine 156 hours *  

Percentage 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 July, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 26°C (79°F).

Average temperatures in July

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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 July

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Historical weather for Chaweng Beach in July

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.

Historical weather Temperatures Precipitation

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Chaweng Beach historical weather extremes in July

According to our 43 years of weather records for Chaweng Beach, the following extremes were recorded between 1982 and 2025.

• The hottest July day on record in Chaweng Beach reached 39°C (102°F) (July 31, 2010).
• On July 23, 1999, Chaweng Beach saw its coldest July day with temperatures maxing out at 27°C (81°F).
• The coldest night in July in Chaweng Beach was on July 11, 2010, with a minimum of 20°C (68°F).

What to Wear in Chaweng Beach in July

Warm temperatures in July 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. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Chaweng Beach in July

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.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

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

Temperature Rainfall Sunshine Humidity Water Temp

See the full Chaweng Beach climate overview or explore weather in Thailand.