7-day forecast ·Koh Samui

Frequently asked questions

What is the weather in Koh Samui right now?

The current temperature in Koh Samui is 25°C with Light Drizzle. Today's high is expected to reach 27° and the low 25°.

What will the temperature be in Koh Samui tomorrow?

Tomorrow in Koh Samui the high is forecast at 28° and the low at 25°. Tomorrow the rain chance rises to 90%.

Will it rain in Koh Samui today?

Yes, there is a 92% chance of rain in Koh Samui today. Consider bringing an umbrella.

When does the sun rise and set in Koh Samui?

Today in Koh Samui the sun rises at 01:58 AM and sets at 02:36 PM.

What is the UV index today in Koh Samui?

UV index in Koh Samui today is very high (12) — full sun protection recommended between 10:00 and 16:00.

Where does Koh Samui's weather data come from?

Data is aggregated from multiple sources: Open-Meteo and WeatherAPI. We compare them to deliver the most accurate forecast for Koh Samui, annotated with a confidence indicator.