Koh Samui Weather

Here are real life reports on Koh Samui weather from some of our customers. If you are looking for a Koh Samui holiday please just enter your details on the right and one of our experts will be delighted to help you.

Month TravelledWeather
January Mixture rain and sun
February Hot and sunny every day
February Hot and sunny
February Very good-sun everyday-not too humid
March It was raining heavily or very cloudy most of time (70% of the time). When the sun was shining though, then it was a beautiful and hot.
March Hot arrived to 36 degrees at 08.30. Loved it! Come back to the glorius English spring...cold and wet!
March 10 mins of rain all trip
May Glorious wall to wall sunshine from Bangkok to Chiang Mai then Koh Samui.
May Humid and Sunny
May Excellent considering it was low season a few afternoons of rain but thats to be expected.
May same as before
May Very hot every day - we experienced rain one evening, but this was enjoyable (a tropical storm) and only lasted around 30 minutes.
May Perfect! Sunshine and hot every day. No rain at all
June Cloudy in morning, sunny from 11-3ish and then cloudy again with rain shower almost every day
June Overall the Weather was good. Over the 2 weeks we were there it rained at about 6pm for a hour or so on about 4 days, and it only rained during the day on one day. The rest of the time the weater was hot (30oC) but not too hot and the skies were blue. I would go again to Thailand at this time of year.
July just going into rainy season so a bit mixed. Sunshine in the morning, showers/rain in the afternoon.
July Less humid than Bankok (thank god!) had a couple of days of sunshine (when I was ill!) but still lots of rain!
July Very hot and humid, slightly over cast and cloudy at times with a couple of rainy days.
August Good weather
August Fantastic
August Was about 36 degrees, sunny and humid - really lovely!
August Hot but cloudy & rained a little
August Great, hot and sunny.
August Hot and sunny, it rained 3 times during the evenings and was cloudy during the day a few times.
September hot
September Absolutely wonderful, very hot with a nice cool breeze.
September mixed. It was mostly cloudy and it rained a fair bit we did see some sun but would have liked more
October koh samui - 80 or thereabouts - bit cloudy, a bit of rain - all as expected
October hot, cloudy, occasional rain, occasional sunny days.
November Rained more than we'd hoped. Apparently November is one of the worst months to go.
November Some day's we had very heavy rain
December Fine, sunshine most of the time
December Lovely, high 20's low 30's
December 3 days of rain and over cast - 3 days sunshine
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100% Privacy guarantee

  • We use your details so our expert travel advisers can help with your holiday plans... simple!
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  • Occasionally if your request is outside our expertise we may ask an expert at a different travel firm to help you instead.
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