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Ko Samui weather
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Usually
in August
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Now
Today
Recommended for Thailand
The weather guide for Thailand (Ko Samui) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.
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Metric (°C) | Imperial (°F)
Tropical storm risk: Ko Samui, Thailand typhoon season
% of month affected by tropical storms
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The Ko Samui, Thailand tropical storm risk chart above shows the typhoon season. The chart was processed from data supplied by the US Meteorological Agency (NOAA). Find out more about our data sources.
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More about Thailand
Which is the hottest month in Ko Samui?
The hottest time of year in Ko Samui is normally April. Expect maximum daytime temperatures to reach 90°F with very high heat and humidity.
Which month has the most rain in Ko Samui?
In terms of rainfall, November is usually the wettest month in Ko Samui with 18.2 inches on average. There are normally 19 days in November with some rain.
When is it sunniest in Ko Samui?
The sunniest time of year in Ko Samui is normally February with bright sunshine on average for 72% of daylight hours; that's 9 hours of sunshine per day.
When is the sea warmest in Ko Samui?
The sea is usually at its warmest in Ko Samui in May when the water temperature reaches 86°F.
What is the flight time to Thailand from the UK?
The flight time to Thailand from the UK is typically 15 hours.
What is the time difference between Thailand and the UK?
The time difference between Thailand and the UK is GMT+7 hours.
What is the main language spoken in Thailand?
The main languages spoken in Thailand are Thai and Isan.
What is the currency in Thailand?
The currency in Thailand is the Thai Baht (THB).
Send money to Thailand with XE Money Transfers*, World Remit* and Wise*.
Which plugs are used in Thailand?
Thailand uses electrical plug type A + B + C + O (230 Volts).
Which side of the road do they drive on in Thailand?
They drive on the left side of the road in Thailand.
Compare Ko Samui weather with the USA
Below the Ko Samui weather chart shows average maximum daytime temperature for Ko Samui, Thailand and the USA (Washington).
Maximum daytime temperature (°F)
Ko Samui, Thailand
USA (Washington)
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Metric (°C) | Imperial (°F)
Compare more Ko Samui weather >>
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