Ko Samui Weather Forecast

Check the Ko Samui weather forecast for the next 5 days before you head off on holiday. The 5-day forecast shows the prevailing weather conditions, maximum & minimum temperatures, hours of sunshine per day, wind speed & direction and more. Tomorrow's maximum temperature in Ko Samui is expected to be 30°C.

5-day weather forecast for Ko Samui

Click on a symbol below to see the daily forecast in detail.

Last updated at 04:05 on Friday 22nd September 2017 GMT

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Metric (°C / mm)  |  Imperial (°F / inches)

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Ko Samui weather forecast by day

Below are the detailed weather forecasts for Ko Samui for the next 5 days.

Ko Samui weather for Friday 22nd September 2017

Below is the Ko Samui weather forecast for Friday 22nd September 2017. Expect isolated thunderstorms in Ko Samui, Thailand with a maximum temperature of 30°C, moderate levels of heat & humidity and 2 hours of bright sunshine. There are 10-20 mm of rainfall expected with 75% chance of some rain and a moderate breeze of 24 kph from the south-west.

  • 30
    °C maximum temperature
  • 26
    °C minimum temperature
  • isolated thunderstorms
  • 2
    hours of sunshine
  • 75
    % chance of some rain
  • <20
    mm of rainfall expected
  • M
    moderate heat & humidity
  • 24
    kph wind from SW

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Ko Samui weather for Saturday 23rd September 2017

Below is the Ko Samui weather forecast for Saturday 23rd September 2017. Expect isolated thunderstorms in Ko Samui, Thailand with a maximum temperature of 30°C, moderate levels of heat & humidity and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 75% chance of some rain and a moderate breeze of 20 kph from the south-west.

  • 30
    °C maximum temperature
  • 26
    °C minimum temperature
  • isolated thunderstorms
  • 0
    hours of sunshine
  • 75
    % chance of some rain
  • <10
    mm of rainfall expected
  • M
    moderate heat & humidity
  • 20
    kph wind from SW

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Ko Samui weather for Sunday 24th September 2017

Below is the Ko Samui weather forecast for Sunday 24th September 2017. Expect isolated thunderstorms in Ko Samui, Thailand with a maximum temperature of 30°C, moderate levels of heat & humidity and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 60% chance of some rain and a gentle breeze of 19 kph from the south-west.

  • 30
    °C maximum temperature
  • 26
    °C minimum temperature
  • isolated thunderstorms
  • 2
    hours of sunshine
  • 60
    % chance of some rain
  • <5
    mm of rainfall expected
  • M
    moderate heat & humidity
  • 19
    kph wind from SW

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Ko Samui weather for Monday 25th September 2017

Below is the Ko Samui weather forecast for Monday 25th September 2017. Expect isolated thunderstorms in Ko Samui, Thailand with a maximum temperature of 30°C, moderate levels of heat & humidity and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 98% chance of some rain and a gentle breeze of 16 kph from the south-west.

  • 30
    °C maximum temperature
  • 26
    °C minimum temperature
  • isolated thunderstorms
  • 0
    hours of sunshine
  • 98
    % chance of some rain
  • <10
    mm of rainfall expected
  • M
    moderate heat & humidity
  • 16
    kph wind from SW

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Ko Samui weather for Tuesday 26th September 2017

Below is the Ko Samui weather forecast for Tuesday 26th September 2017. Expect isolated thunderstorms in Ko Samui, Thailand with a maximum temperature of 31°C, moderate levels of heat & humidity and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 53% chance of some rain and a gentle breeze of 16 kph from the south-west.

  • 31
    °C maximum temperature
  • 26
    °C minimum temperature
  • isolated thunderstorms
  • 0
    hours of sunshine
  • 53
    % chance of some rain
  • <2
    mm of rainfall expected
  • M
    moderate heat & humidity
  • 16
    kph wind from SW

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  • Save up to 11% on all inclusive holidays to Thailand
  • Book online with First Choice to receive discount
  • FREE kids places & low deposits also available

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Ko Samui weather by month

Check Ko Samui weather for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

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