Koh Samui Climate and Weather

The Koh Samui beach location in the Gulf of Thailand shows a dramatically different climate to that of other popular Thai holiday spots such as Krabi and Phuket which are located at the Andaman Sea. Take a further look at our Koh Samui weather information below for more detailed insight about what you can expect for your Koh Samui travel from the weather during the three seasons on Koh Samui.

December to February is dry season in Koh Samui,Thailand. Or as the Thai's like to call it, Winter. The temperature in Koh Samui during winter is a steady 30C. There is not much rain during this time and the islands flora and fauna come to life in dramatic fashion. Refreshing winds make this time of year great for wind and body surfing. The dry season is considered the best time to plan your Koh Samui travel. Therefore, should you plan your Koh Samui travel during this time, you should book your Koh Samui hotel in advance.

From March to August you will appreciate the air conditioning of your Koh Samui hotel, a spot in the shade and the cool blue waters of the ocean which offer a welcome relief from the oppressive heat. Temperatures on Koh Samui during the hot season can reach up to 40C, and rain is scarce.

July to September are also popular months on Koh Samui as the temperatures are still high but at times are cooled by revitalizing showers.

The monsoon season on Koh Samui is from September to November. Koh Samui's rainy season is not as well defined as other areas in Thailand. You may experience a few days in a row where the rain struggles to break the clouds but Koh Samui's magic normally wins out over mother nature and the sun is soon high in the sky. Temperatures in Koh Samui during this time range from 25C and 30C. The weather in Koh Samui during this time is really quite difficult to predict. With finite water supplies, Koh Samui welcomes the much needed and important rainy season.

If you're planning a trip to Koh Samui, be sure not to miss a famous full moon party in Koh Phangan and plan on plenty of lounging on Koh Samui's beaches.