Koh Rong Climate by Month – Rainy Season, Temperature Averages
Summary
The climate figures for Koh Rong are averaged from 2016–2025 observations (10 years). Annual rainfall averages about 3,143 mm.
The rainy season runs April–November. The wettest month is July with 539.4 mm across 29 rain days; the driest is December at just 49 mm.
The hottest month is May (average high 30.2°C) and the coolest is February (28.4°C).
The most comfortable time to visit Koh Rong is December — less rain and milder heat.
Monthly averages · 2016–2025
| Monthly averages | High | Low | Rainfall | Rainy season |
|---|---|---|---|---|
| January | 28.4° | 25.8° | 56 mm | 12 |
| February | 28.4° | 25.9° | 53 mm | 14 |
| March | 28.9° | 26.5° | 81 mm | 16 |
| April | 29.9° | 27.3° | 120 mm | 19 |
| May | 30.2° | 27.3° | 330 mm | 27 |
| June | 29.5° | 26.9° | 379 mm | 26 |
| July | 29.0° | 26.5° | 539 mm | 29 |
| August | 28.9° | 26.4° | 453 mm | 29 |
| September | 28.6° | 26.2° | 529 mm | 28 |
| October | 28.8° | 26.2° | 397 mm | 27 |
| November | 29.3° | 26.6° | 157 mm | 20 |
| December | 29.0° | 26.2° | 49 mm | 10 |