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Koh Samui Weather

Weather Statistics for Ko Samui, Thailand

Weather forecast

News reports

Koh Samui weather in the media

Current conditions and Forecast

Koh Samui Weather Report

Koh Samui Hotels and Spa Resorts
Choeng Mon:
The Imperial Boathouse Hotel Choeng Mon, Resort Koh Samui
The Imperial Boathouse
Nora Beach Resort & Spa
Nora Beach Resort & Spa
Muang Samui Spa Resort on Chaweng Beach
Muang Samui Spa Resort
Choeng Mon:
Mandara Spa, Choeng Mon
Sala Samui Resort & Spa
Buriraya Resort & Spa
Buriraya Resort & Spa
Napasai Pansea Samui
Napasai Samui Spa Resort
more Koh Samui Hotels

Koh Samui Seasons:
Average Temperatures, Rain and Wind on Koh Samui

Karena at Coconut Beach

Beach holiday homes for rent.

Samui Villas

Koh Samui has three seasons. February to May is the hot and dry season with peak daytime temperatures exceeding 40 degrees Celsius and little rain, except for short, but heavy cloudbursts. This weather is just perfect to spend the day on one of Koh Samui's beautiful beaches or staying near the villa resort swimming pool.  Hiking or mountain biking into the interior will be extremely strenuous, and can be dangerous for persons with weak health or someone not carrying enough water.

Typical weather from June to September brings more tropical rain showers, a short and welcome breather from the heat of the day. Daytime temperatures are still in the high thirties. The beaches are wide and bright, the sea is generally calm and smooth. Note that Koh Samui is located off the east coast of Thailand, and therefore shielded from the south-eastern monsoon hammering Thailand's Andaman coast during this period.

Koh Samui's monsoon season starts in October with torrential rain falls, flooding, mud slides, strong wind and waves from the east. This nasty weather is caused by the north-east monsoon coming up from the Philippines and Indonesia. Also November can be rather wet. Temperatures drop to twenty degrees at night - which is quite cold by local standards. The heavy rain and flooding usually comes to an end in early December. The wind still blows from the east, driving high surf into the beaches of Chaweng and Lamai. Fortunately the hotel and resort areas in the bays of Bophut, Maenam, and Coconut Beach - Bang Por are somewhat sheltered from the strong waves The beaches here offer superior conditions for swimming and beach safety until windy conditions settle down by the end of January.

Rain or shine, the Gulf of Thailand's year round weather is truly delightful. When you have the good luck of staying at one of the Coconut tropical Koh Samui villas your beach paradise will be more than comfortable under any weather condition and you'll enjoy the most pleasurable holiday imaginable.

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec  
Temperatures 25.5 26.5 27.5 28.1 27.3 27.3 27.3 27.3 27.1 26.3 26.1 25.3 ºC
Precipitation 46 11 25 72 170 136 145 149 200 254 269 121 mm
Temperatures in Koh Samui, daily averages over the course of the year Rainfall in Koh Samui, annual monthly averages

Koh Samui weather charts: Annual temperatures and precipitation

* weather statistics and charts provided by

Koh Samui Weather: Current Conditions and Forecast

Current Weather Reports for Koh Samui and best guesses for tomorrow and beyond 

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