Tip of the top » On low season (May-July) many hotels provide lower rates and the weather is often rather good. A good time to go!

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Samui Weather

The Climate in Thailand

Thailand's climate is tropical. High in both temperature and humidity and most people find it very pleasant. The average temperature is about 30 degrees Celsius, or 86 degrees Fahrenheit.

When it is getting too hot, just enter a air conditioned hotel room or shop for a while and you will "recharge your batteries".

Remember to drink a lot of water so you do not become dehydrated. You will probably experience "summer temperatures" here year round, but Thailand and Koh Samui is normally divided into three seasons:

The dry season, the hot season and the monsoon or rain season.

A printer friendly version is found here

For weekly updated reports about the weather, click here

The Weather Right Now

AFTERNOON SUNSHINE - Photo by Jens W - Kohsamui.org

Sun and Moon Data

Notice

The climate seasons are not exactly the same as in Krabi and Phuket as these destinations are located in/at the Andaman Sea and Koh Samui, Koh Phangan and Koh Tao are located in the Gulf of Thailand. This makes the climate differences rather evident.

Irish young woman on Samui

YOUNG WOMAN ON SAMUI - Photo by Jens W - Kohsamui.org

Kohsamui.org Reports

Our Own Reports

Kohsamui.org do now offer our own weekly or even daily updated weather reports and weather alerts from the islands in the Gulf of Thailand.

You will find them in the news section here

Samui Climate and Seasons

Dry Season

December - February: The dry season. Not much rain, but it might occur some refreshing wind or breeze at this time. Great for wind and body surfing. It is normally a lot of sunshine at this season.

Hot Season

March - August: The weather is still dry in this time, and it is usually very sunny and hot. In May it might rain a little more though. This is a great period to visit the islands if you can stand temperatures ranging from 28-35 degrees Celsius at daytime.

Rain Season

September - November: Also known as the monsoon season. It's still hot and normally there are many sunny days in the monsoon period. On some days you might find yourself in a refreshing monsoon shower for a moment. The rain showers are often short and as these island's water supplies are finite, the rain is needed and important.

Sunset on Koh Samui

DAWN AT NORTH LAMAI - Photo by Jens W - Kohsamui.org

Weather Statistics

Temperatures in Celsius. Average values:

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max. temp	31	32	33	33	31	31	31	31	30	31	31	31
Min. temp	23	23	24	25	25	25	25	24	24	24	24	24
Water temp	26	27	27	28	28	28	28	28	28	27	27	27
Sun hours	280	258	237	231	215	162	108	138	128	176	231	290
Rain mm	38	8	12	62	186	113	143	123	210	260	302	98

A BANG POR SUNSET - Photo by Jens W - Kohsamui.org

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