How reliable is this forecast?

Values for 15 days ahead show a trend; they are updated as the date approaches and may change.

Weather · Thailand

Ko Samui 15-Day Weather Forecast

Over the 15 days from October 18 to November 1, temperatures in Ko Samui will range from 21°C to 27°C; the warmest day is October 30. Days with rain (1 mm or more) expected: 12. Values beyond day 7 indicate a trend and are updated daily.

Ko Samui 15-day forecast table

The bar shows each day's range against the period's lowest and highest temperature.

Frequently asked questions

What will the weather be like in Ko Samui over the next 15 days?: Over the 15 days from October 18 to November 1, temperatures in Ko Samui will range from 21°C to 27°C; the warmest day is October 30. Days with rain (1 mm or more) expected: 12. Values beyond day 7 indicate a trend and are updated daily.
How reliable is this forecast?: Values for 15 days ahead show a trend; they are updated as the date approaches and may change.