Koh Samui weather live forecast

Tomorrow's maximum temperature in Koh Samui is expected to be 30°C.

5-day weather forecast updated at 04:01 on Wednesday 25th December 2024 GMT

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

Koh Samui weather forecast by day

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

Koh Samui weather for Wednesday 25th December 2024

Expect broken clouds in Koh Samui, Thailand with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the north-east.

  • 30°C maximum temperature30
    °C maximum temperature
  • 25°C minimum temperature25
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Gentle breeze of 17 kph from the North-East17
    kph wind from NE

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Koh Samui weather for Thursday 26th December 2024

Expect isolated thunderstorms in Koh Samui, Thailand with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 54% chance of some rain and a gentle breeze of 15 kph from the north-east.

  • 29°C maximum temperature29
    °C maximum temperature
  • 26°C minimum temperature26
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 54% chance of some rain54
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Gentle breeze of 15 kph from the North-East15
    kph wind from NE

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Koh Samui weather for Friday 27th December 2024

Expect isolated thunderstorms in Koh Samui, Thailand with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 75% chance of some rain and a gentle breeze of 15 kph from the east.

  • 30°C maximum temperature30
    °C maximum temperature
  • 25°C minimum temperature25
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 9 (Very High)9
    UV index (Very High)
  • 75% chance of some rain75
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Gentle breeze of 15 kph from the East15
    kph wind from E

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Koh Samui weather for Saturday 28th December 2024

Expect isolated thunderstorms in Koh Samui, Thailand with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 10-20 mm of rainfall expected with 80% chance of some rain and a gentle breeze of 15 kph from the north-east.

  • 29°C maximum temperature29
    °C maximum temperature
  • 25°C minimum temperature25
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 80% chance of some rain80
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Gentle breeze of 15 kph from the North-East15
    kph wind from NE

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Koh Samui weather for Sunday 29th December 2024

Expect isolated thunderstorms in Koh Samui, Thailand with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 81% chance of some rain and a gentle breeze of 19 kph from the east.

  • 29°C maximum temperature29
    °C maximum temperature
  • 25°C minimum temperature25
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 81% chance of some rain81
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Gentle breeze of 19 kph from the East19
    kph wind from E

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

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