Destination forecast
Koh Samui, Thailand
Asia/Bangkok · 9.51, 100.01
See which of the next seven days are mostly rain-free, how much rain is expected and the temperature range, then compare other destinations across Thailand.
Direct weather answer
Koh Samui rain outlook for the next 7 days
Rain is possible on all 7 forecast days in Koh Samui.
There is no clear rain-free window right now, so keep a backup plan for outdoor activities.
- Forecast period
- Oct 4–Oct 10
- Expected precipitation
- 76.6 mm
A day counts as mostly rain-free only when the daily condition is not rain, drizzle or showers and expected precipitation stays within the site threshold.
Forecast updated Oct 10, 2026, 12:00 UTC · Forecast source: Open-Meteo
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Weather now
Current condition
Drizzle
- Temperature
- 24.1°C / 28.1°C
- Peak rain chance
- 71%
Updated
Travel Score
- Comfortable Temperature
Plan the days
7-day trip outlook
Dates and weather use Asia/Bangkok
Today
Drizzle
24.1° / 28.1°
71% peak rain46ScoreTomorrow
Light drizzle
22.2° / 27.3°
76% peak rain51ScoreDay 3
Thunderstorm
22.7° / 27.2°
94% peak rain45ScoreDay 4
Rain showers
21.9° / 26.1°
98% peak rain47ScoreDay 5
Thunderstorm
22° / 25.2°
100% peak rain48ScoreDay 6
Drizzle
22.7° / 25.9°
94% peak rain48ScoreDay 7
Dense drizzle
22.4° / 24.1°
90% peak rain51Score
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