Koh Samui Weather Forecast

Temperatures and forecasts and satellite map

The climate is very pleasant all year round, with temperatures varying between 25 and 34 degrees Celsius.

There are three seasons, warm and dry season from February till May, rainy season from the end of September till November and "cool" season which extends from October till January.

Rainy season often amounts in fact to some "refreshing"showers followed by the return of the sun.

The climate is tropical so very humid all year round, but Samui remains always refreshed by a pleasant sea breeze blowing from the Gulf.

In conclusion, if you love the sun and if you can withstand heights of summer, come from February till May! It is very rare that it rains...

Satellite Map

weather Koh Samui

December to February (main season) it is up to 30C (86F). Short tropical rain, mostly in December. This is the best time of year for European 's to visit, because the the tempertaure is cooler.

March to June it becomes very hot, up to 40C (114F) in the sun and it rarely rains. (Low season)

July to September (main season) is hot, but some days its raining.

June, October, November are rainy seasons. But its not raining every day compared to other regions of Thailand. Samui does not really have a monsoon season. But sometimes there are sunless periods of 2 or 3 days.

Average Maxium Temperature C

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max Temp.	30	32	33	31	31	31	31	30	30	31	31	30
Min.Temp	22	23	24	25	25	25	24	24	24	24	24	23
Average Water Temperature
Water Temp.	25	26	26	27	27	28	28	28	28	26	27	26
Average Rain Fall
Rain mm	38	8	12	62	187	112	143	123	210	261	302	98