Ko Samui weather forecast

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Last updated at 04:06 on Thursday 24th June 2021 GMT

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The 5-day weather forecast for Ko Samui, Thailand is provided by the Swiss meteorological agency, MeteoBlue. Find out more about our data sources.

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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 25th June 2021

Below is the Ko Samui weather forecast for Friday 25th June 2021. Expect isolated thunderstorms in Ko Samui, Thailand with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 66% chance of some rain and a gentle breeze of 17 kph from the west.

  • 33°C maximum temperature33
    °C maximum temperature
  • 27°C minimum temperature27
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 66% chance of some rain66
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Gentle breeze of 17 kph from the West17
    kph wind from W

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Ko Samui weather for Saturday 26th June 2021

Below is the Ko Samui weather forecast for Saturday 26th June 2021. Expect isolated thunderstorms in Ko Samui, Thailand with a maximum temperature of 32°C, high levels of heat & humidity, maximum UV of 11+ (Extreme) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 76% chance of some rain and a light breeze of 9 kph from the south-west.

  • 32°C maximum temperature32
    °C maximum temperature
  • 27°C minimum temperature27
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 11+ (Extreme)11
    UV index (Extreme)
  • 76% chance of some rain76
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Light breeze of 9 kph from the South-West9
    kph wind from SW

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Ko Samui weather for Sunday 27th June 2021

Below is the Ko Samui weather forecast for Sunday 27th June 2021. Expect isolated thunderstorms in Ko Samui, Thailand with a maximum temperature of 32°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 76% chance of some rain and a light breeze of 8 kph from the south.

  • 32°C maximum temperature32
    °C maximum temperature
  • 27°C minimum temperature27
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 76% chance of some rain76
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Light breeze of 8 kph from the South8
    kph wind from S

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Ko Samui weather for Monday 28th June 2021

Below is the Ko Samui weather forecast for Monday 28th June 2021. Expect isolated thunderstorms in Ko Samui, Thailand with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 79% chance of some rain and a light breeze of 8 kph from the south-west.

  • 33°C maximum temperature33
    °C maximum temperature
  • 27°C minimum temperature27
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 79% chance of some rain79
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Light breeze of 8 kph from the South-West8
    kph wind from SW

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Ko Samui weather for Tuesday 29th June 2021

Below is the Ko Samui weather forecast for Tuesday 29th June 2021. Expect isolated thunderstorms in Ko Samui, Thailand with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 67% chance of some rain and a light breeze of 10 kph from the south-west.

  • 33°C maximum temperature33
    °C maximum temperature
  • 27°C minimum temperature27
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 11 (Extreme)11
    UV index (Extreme)
  • 67% chance of some rain67
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Light breeze of 10 kph from the South-West10
    kph wind from SW

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  • Travel before 31st August 2021 (inclusive)
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Metric (°C / mm)  |  Imperial (°F / inches)

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