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
| 24 April 2026 Fri 28 ° C ( 82.4°F )  Clear |
Feels Like : 31 ° C / 87.9°F Humidity : % 79 Pressure : 1008 mb Wind Speed : 16.2 kmph / 10.1 miles from SSE 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 25 |
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 |
|---|---|---|---|---|---|---|---|
| 24 April 2026 Fri | Sunny |
28.7 ° C | 29.3 ° C | 29 ° C | % 67 | 22.3 km/h | 0% |
| 25 April 2026 Sat | Sunny |
28.6 ° C | 29.3 ° C | 29 ° C | % 62 | 22.7 km/h | 0% |
| 26 April 2026 Sun |  Patchy rain nearby |
28.4 ° C | 29.3 ° C | 29 ° C | % 71 | 23.4 km/h | 86% |
| 27 April 2026 Mon | Sunny |
28.7 ° C | 30.2 ° C | 29.4 ° C | % 69 | 23.8 km/h | 0% |
| 28 April 2026 Tue | Patchy rain nearby |
28.6 ° C | 29.9 ° C | 29.2 ° C | % 74 | 21.6 km/h | 88% |
| 29 April 2026 Wed | Sunny |
28.6 ° C | 29.6 ° C | 29.3 ° C | % 72 | 15.1 km/h | 0% |
| 30 April 2026 Thu | Patchy rain nearby |
28.7 ° C | 29.9 ° C | 29.4 ° C | % 69 | 23.4 km/h | 80% |
| 01 May 2026 Fri | Patchy rain nearby |
28.3 ° C | 29.6 ° C | 28.9 ° C | % 71 | 14.4 km/h | 77% |
| 02 May 2026 Sat | Patchy rain nearby |
29.1 ° C | 29.8 ° C | 29.5 ° C | % 69 | 13.7 km/h | 89% |
| 03 May 2026 Sun | Patchy rain nearby |
27.9 ° C | 29.7 ° C | 29 ° C | % 71 | 19.1 km/h | 88% |
| 04 May 2026 Mon | Sunny |
28.9 ° C | 29.9 ° C | 29.5 ° C | % 71 | 20.5 km/h | 0% |
| 05 May 2026 Tue | Sunny |
29.1 ° C | 30.2 ° C | 29.7 ° C | % 72 | 23.8 km/h | 0% |
| 06 May 2026 Wed | Patchy rain nearby |
29.2 ° C | 30.1 ° C | 29.8 ° C | % 71 | 23.4 km/h | 87% |
| 07 May 2026 Thu | Patchy rain nearby |
29 ° C | 30.1 ° C | 29.5 ° C | % 72 | 18.7 km/h | 79% |
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