SeasonMapKoh Rong weather by month
Cambodia
The best time to visit Koh Rong is December to February — 91/100 in February, 30°C and 11 rainy days. The best season is the dry season, November to April (85/100 on average).
The worst month is September at 51/100 — sweltering, soaked, clean air. See September →
Updated September 2026 · climate normals from ERA5 reanalysis
Planning the wider trip? Best time to visit Cambodia →
Koh Rong, month by month
Comfort score out of 100 for the kind of trip Koh Rong is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
| Month | Score | Tier | High | Rain | Sun | Crowds | On |
|---|---|---|---|---|---|---|---|
| JanJanuary | 90 | S | 30°C | 10 d | 10 h | Busy | 2 |
| FebFebruary | 91 | S | 30°C | 11 d | 11 h | Peak | 2 |
| MarMarch | 85 | A | 31°C | 18 d | 11 h | Shoulder | 1 |
| AprApril | 80 | A | 31°C | 21 d | 11 h | Busy | 1 |
| MayMay | 63 | C | 31°C | 29 d | 9 h | Shoulder | — |
| JunJune | 60 | C | 30°C | 28 d | 9 h | Shoulder | 1 |
| JulJuly | 54 | D | 30°C | 30 d | 8 h | Quiet | 1 |
| AugAugust | 59 | D | 30°C | 30 d | 9 h | Shoulder | 1 |
| SepSeptember | 51 | D | 29°C | 29 d | 7 h | Quiet | 1 |
| OctOctober | 57 | D | 30°C | 28 d | 8 h | Quiet | 1 |
| NovNovember | 76 | B | 30°C | 17 d | 9 h | Shoulder | 1 |
| DecDecember | 88 | A | 30°C | 8 d | 10 h | Busy | 1 |
What's on in Koh Rong through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
Crowds in Koh Rong in February
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdstravelers describe it as peak season, Chinese New Year, school holidays in 2 of the markets that fill it
Sourced from traveler notes: “Forum posters place February inside Koh Rong's peak season, which runs roughly November through March and brings cool(…” — Tripadvisor community
Peak crowdsBusyShoulder seasonQuiet
Good to know before you go to Koh Rong
Real experiences from travellers' own write-ups, quoted with a link to the original.
Money
A guide to Koh Rong warns that despite the island now having more reliable electricity than in years past, ATMs still haven't arrived, so bringing all the cash you'll need for your entire stay is essential rather than assuming you can withdraw more once there. Their recommendation for seeing beyond the main beach: an ATV tour covers a genuine overview of the island and reaches remote beaches that would otherwise require a long walk through jungle terrain to find.