Koh Samui Airport (USM) 15 Day Weather Forecast, Koh Samui Thailand
Current weather conditions and 15 day weather forecast for Koh Samui Airport in Koh Samui, Thailand including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at USM
| 23 October 2026 Fri 29.3 ° C ( 84.7°F )  Overcast |
Feels Like : 33.2 ° C / 91.8°F Humidity : % 69 Pressure : 1008 mb Wind Speed : 4.7 kmph / 2.9 miles from ENE 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 99 |
15-day weather forecast for Koh Samui Airport, Koh Samui, Thailand
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 23 October 2026 Fri |  Sunny |
28.2 ° C | 29.6 ° C | 29 ° C | % 72 | 10.8 km/h | 36% |
| 24 October 2026 Sat |  Light rain shower |
26.2 ° C | 29.6 ° C | 28.6 ° C | % 75 | 16.2 km/h | 81% |
| 25 October 2026 Sun | Overcast |
27 ° C | 29.2 ° C | 28.4 ° C | % 75 | 14 km/h | 81% |
| 26 October 2026 Mon | Light rain shower |
26.6 ° C | 29.3 ° C | 28.2 ° C | % 73 | 14 km/h | 82% |
| 27 October 2026 Tue | Overcast |
25.4 ° C | 28.1 ° C | 26.8 ° C | % 77 | 31 km/h | 82% |
| 28 October 2026 Wed |  Light drizzle |
25.6 ° C | 28 ° C | 27 ° C | % 77 | 25.6 km/h | 82% |
| 29 October 2026 Thu | Light rain shower |
26.7 ° C | 28 ° C | 27.5 ° C | % 79 | 8.6 km/h | 85% |
| 30 October 2026 Fri |  Patchy rain nearby |
27.2 ° C | 27.7 ° C | 27.5 ° C | % 80 | 20.9 km/h | 84% |
| 31 October 2026 Sat | Patchy rain nearby |
26.2 ° C | 28.2 ° C | 27.6 ° C | % 81 | 15.5 km/h | 82% |
| 01 November 2026 Sun | Patchy rain nearby |
26.7 ° C | 28.2 ° C | 27.5 ° C | % 80 | 14.4 km/h | 80% |
| 02 November 2026 Mon | Patchy rain nearby |
26.4 ° C | 28.1 ° C | 27.3 ° C | % 80 | 14 km/h | 79% |
| 03 November 2026 Tue | Patchy rain nearby |
26.5 ° C | 28.1 ° C | 27.4 ° C | % 80 | 13.3 km/h | 84% |
| 04 November 2026 Wed | Patchy rain nearby |
27 ° C | 28.8 ° C | 28 ° C | % 78 | 11.2 km/h | 64% |
| 05 November 2026 Thu | Patchy rain nearby |
27.4 ° C | 28.8 ° C | 28 ° C | % 77 | 9 km/h | 67% |
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