Weather forecast for 10 daysKo Samui, Thailand

10-day overview

Daily temperatures

Maximum temperature: 27°C.
Coldest day: today 25°C.

Chance of precipitation

Highest chance: today 78%.

Long-term weather forecast

  • Wednesday
  • 28. Oct 2026
  • 25°C
  • 23°C
Thunderstorms
Thunderstorms
  • Precip. probability: 78%
  • Precipitation: 25mm
  • Wind: 29km/hESE 103°
  • Humidity: 88%
  • UV index: 6
  • Sunrise: 06:09 +07
  • Sunset: 17:58 +07
  • ▼
  • Thursday
  • 29. Oct 2026
  • 26°C
  • 24°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 48%
  • Precipitation: 8mm
  • Wind: 25km/hESE 114°
  • Humidity: 83%
  • UV index: 9
  • Sunrise: 06:09 +07
  • Sunset: 17:58 +07
  • ▼
  • Friday
  • 30. Oct 2026
  • 27°C
  • 23°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 49%
  • Precipitation: 15mm
  • Wind: 22km/hESE 116°
  • Humidity: 82%
  • UV index: 8
  • Sunrise: 06:09 +07
  • Sunset: 17:57 +07
  • ▼
  • Saturday
  • 31. Oct 2026
  • 27°C
  • 24°C
AM Showers
AM Showers
  • Precip. probability: 38%
  • Precipitation: 2mm
  • Wind: 23km/hESE 106°
  • Humidity: 81%
  • UV index: 11
  • Sunrise: 06:09 +07
  • Sunset: 17:57 +07
  • ▼
  • Sunday
  • 1. Nov 2026
  • 27°C
  • 23°C
AM Showers
AM Showers
  • Precip. probability: 43%
  • Precipitation: 5mm
  • Wind: 20km/hE 95°
  • Humidity: 80%
  • UV index: 11
  • Sunrise: 06:09 +07
  • Sunset: 17:57 +07
  • ▼
  • Monday
  • 2. Nov 2026
  • 26°C
  • 23°C
Showers
Showers
  • Precip. probability: 46%
  • Precipitation: 8mm
  • Wind: 17km/hENE 77°
  • Humidity: 81%
  • UV index: 11
  • Sunrise: 06:10 +07
  • Sunset: 17:56 +07
  • ▼
  • Tuesday
  • 3. Nov 2026
  • 26°C
  • 23°C
Showers
Showers
  • Precip. probability: 58%
  • Precipitation: 10mm
  • Wind: 20km/hENE 72°
  • Humidity: 81%
  • UV index: 10
  • Sunrise: 06:10 +07
  • Sunset: 17:56 +07
  • ▼
  • Wednesday
  • 4. Nov 2026
  • 27°C
  • 23°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 38%
  • Precipitation: 7mm
  • Wind: 21km/hE 101°
  • Humidity: 81%
  • UV index: 11
  • Sunrise: 06:10 +07
  • Sunset: 17:56 +07
  • ▼
  • Thursday
  • 5. Nov 2026
  • 27°C
  • 23°C
AM Showers
AM Showers
  • Precip. probability: 39%
  • Precipitation: 3mm
  • Wind: 19km/hE 101°
  • Humidity: 81%
  • UV index: 10
  • Sunrise: 06:10 +07
  • Sunset: 17:56 +07
  • ▼
  • Friday
  • 6. Nov 2026
  • 26°C
  • 23°C
Showers
Showers
  • Precip. probability: 51%
  • Precipitation: 9mm
  • Wind: 19km/hE 99°
  • Humidity: 82%
  • UV index: 10
  • Sunrise: 06:10 +07
  • Sunset: 17:56 +07
  • ▼
Ten-day trends indicate that a combination of showery and unstable weather is predicted.
Rainfall is anticipated day-to-day, with daily precipitation varying from a minimal 2mm to a maximum of 25mm.
The maximum temperature will be very similar in the upcoming days. Maximum temperatures will fall between 25°C and 27°C, while the lowest nightly temperature differences will be also negligible, as the minimum temperature will fluctuate between 23°C and 24°C.
Friday through Sunday, next Wednesday and Thursday, with the highest temperature of 27°C, will be the warmest days; today is the coldest day, with a maximum temperature of 25°C.
Updated: Oct 27, 2026 @ 20:43:47 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

In Ko Samui, a combination of rain-soaked and unstable weather is forecasted for the next ten days.

With daily precipitation varying from a minimum of 2mm to a maximum of 25mm, rainfall is anticipated every day in Ko Samui. With substantial precipitation of 25mm, Wednesday will be the day with the most rainfall.

The maximum temperature will vary between 25°C and 27°C, while the minimum temperature will vary between 23°C and 24°C.

The warmest days will be Friday through Sunday, next Wednesday and Thursday, with a maximum of 27°C. Today is the coldest day, with a maximum temperature of 25°C.

On Saturday, wet conditions with brief showers are expected early in the day.

On Saturday, there is a low chance of minimal precipitation in Ko Samui.

On Saturday, the maximum temperature will be 27°C, while the minimum temperature will be 24°C.

On Sunday, occasional light showers are possible in the morning hours.

Light precipitation of 5mm is anticipated on Sunday. The chance of rainfall is 43%.

On Sunday, the highest temperature will be 27°C, while the lowest temperature will be 23°C.