Surat Thani Province, Thailand

Thongson Bay Beach

Thongson Bay Beach is a serene location situated on the island of Koh Samui. It is known for its natural beauty and tranquility. However, it is somewhat secluded and might require a taxi ride to reach, making it an ideal spot for those seeking a relaxing vacation away from the hustle and bustle.

The beach offers services such as beach cleaning, contributing to its pristine condition. However, visitors should be aware of occasional issues with gasoline in the sea.

Discover accommodation options near Thongson Bay Beach and enjoy a serene escape on Koh Samui's tranquil shores.

Please note that there may be some confusion with the name, as it is sometimes mistakenly referred to as Thong Sai beach.

Visitor Reviews

Visitor reviews highlight the tranquility and beauty of the beach, with many appreciating the cleanliness and quality of the rooms. The location, although a bit remote, is appreciated by those seeking a relaxing vacation. However, some visitors complain about the need for constant taxi use due to the remote location and the presence of gasoline in the sea.

Where to Stay near Thongson Bay Beach?

Most visitors to Thongson Bay Beach in Koh Samui choose to stay in nearby areas like Chaweng or Bophut, which offer a range of accommodations and vibrant nightlife. For those who prefer staying closer to the beach itself, there are a few resort options within walking distance that cater to a more tranquil and secluded experience.

The following map shows available accommodations and their prices. See the full list of accommodation options here.

Where is Thongson Bay Beach?

Latitude: 9.5786346 / Longitude: 100.0802926

Thongson Bay Beach is located in Surat Thani Province. The following map of Thongson Bay Beach shows the exact location.

Thongson Bay Beach: Weather Today

📅 Monday, September 7, 2026
This is a challenging day for a beach visit, so you might want to reconsider your plans. While the air temperature hits a warm 32.9 °C and the water remains a very pleasant 30.4 °C, frequent rain showers are expected throughout the day. The sky will be quite gloomy with thick cloud cover blocking most direct sunshine, though the UV index still reaches a strong 9.15, meaning you should remain cautious of sun exposure even through the clouds. Winds are noticeable, which will make the beach feel restless, and while the waves remain gentle, the combination of unstable weather and incoming rain makes for an unideal day for swimming or relaxing on the sand. It is best to stay indoors until conditions improve.
🌬️

Air

Low / High26.4°C/32.9°C
Feels Like (High)35.9°C
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Sea

Sea Temperature30.4 °C
Wave Height0.4 m
🌧️

Rain

Rain Chance78%
Rainfall3.3 mm
Rain Duration9 h
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Sun

Sunrise / Sunset06:10/18:25
Sunshine Hours7.1 hrs
UV Index9.15
Cloud Cover95%
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Wind

Speed16.9 km/h
Gusts46.4 km/h
DirectionW

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