Koh Rong Sanloem Climate by Month – Rainy Season, Temperature Averages
Summary
The climate figures for Koh Rong Sanloem are averaged from 2016–2025 observations (10 years). Annual rainfall averages about 3,044 mm.
The rainy season runs April–November. The wettest month is September with 526.8 mm across 28 rain days; the driest is February at just 51.9 mm.
The hottest month is May (average high 30°C) and the coolest is January (28.2°C).
The most comfortable time to visit Koh Rong Sanloem is February — less rain and milder heat.
Monthly averages · 2016–2025
| Monthly averages | High | Low | Rainfall | Rainy season |
|---|---|---|---|---|
| January | 28.2° | 26.0° | 58 mm | 13 |
| February | 28.3° | 26.0° | 52 mm | 14 |
| March | 28.8° | 26.6° | 77 mm | 19 |
| April | 29.7° | 27.4° | 119 mm | 19 |
| May | 30.0° | 27.4° | 318 mm | 28 |
| June | 29.4° | 27.0° | 359 mm | 26 |
| July | 28.9° | 26.5° | 497 mm | 29 |
| August | 28.8° | 26.5° | 428 mm | 29 |
| September | 28.5° | 26.3° | 527 mm | 28 |
| October | 28.7° | 26.2° | 402 mm | 28 |
| November | 29.1° | 26.7° | 152 mm | 19 |
| December | 28.8° | 26.4° | 55 mm | 11 |