Koh Samui weather live forecast

Tomorrow's maximum temperature in Koh Samui is expected to be 90°F.

5-day weather forecast updated at 04:01 on Wednesday 16th October 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 16th October 2024

Expect isolated thunderstorms in Koh Samui, Thailand with a maximum temperature of 90°F, high levels of heat & humidity, maximum UV of 10 (Very High) and 8 hours of bright sunshine. There are 5-10 mm of rainfall expected with 44% chance of some rain and little or no wind of 4 mph from the south-west.

  • 90°F maximum temperature90
    °F maximum temperature
  • 81°F minimum temperature81
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 44% chance of some rain44
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Little or no wind of 4 mph from the South-West4
    mph wind from SW

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Koh Samui weather for Thursday 17th October 2024

Expect isolated thunderstorms in Koh Samui, Thailand with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 10-20 mm of rainfall expected with 80% chance of some rain and little or no wind of 3 mph from the south-west.

  • 88°F maximum temperature88
    °F maximum temperature
  • 81°F minimum temperature81
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 11 (Extreme)11
    UV index (Extreme)
  • 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
  • Little or no wind of 3 mph from the South-West3
    mph wind from SW

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Koh Samui weather for Friday 18th October 2024

Expect isolated thunderstorms in Koh Samui, Thailand with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 20-30 mm of rainfall expected with 84% chance of some rain and a light breeze of 4 mph from the west.

  • 88°F maximum temperature88
    °F maximum temperature
  • 81°F minimum temperature81
    °F 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)
  • 84% chance of some rain84
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 4 mph from the West4
    mph wind from W

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Koh Samui weather for Saturday 19th October 2024

Expect isolated thunderstorms in Koh Samui, Thailand with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 40-50 mm of rainfall expected with 84% chance of some rain and a light breeze of 6 mph from the west.

  • 88°F maximum temperature88
    °F maximum temperature
  • 79°F minimum temperature79
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 9 (Very High)9
    UV index (Very High)
  • 84% chance of some rain84
    % chance of some rain
  • 40-50 mm of rainfall expected<50
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 6 mph from the West6
    mph wind from W

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Koh Samui weather for Sunday 20th October 2024

Expect isolated thunderstorms in Koh Samui, Thailand with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 30-40 mm of rainfall expected with 82% chance of some rain and a light breeze of 6 mph from the north-west.

  • 88°F maximum temperature88
    °F maximum temperature
  • 79°F minimum temperature79
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 11 (Extreme)11
    UV index (Extreme)
  • 82% chance of some rain82
    % chance of some rain
  • 30-40 mm of rainfall expected<40
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 6 mph from the North-West6
    mph wind from NW

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