SeasonMapKoh Rong weather in August
Cambodia
August in Koh Rong: hot, soaked, with clean air — a gamble, with 29 rainy days.
#9 of 12 months in Koh Rong · #1109 of 1383 destinations to visit in August · comfort 59/100 (tier D)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Koh Rong in August
No notes yet. Open Koh Rong on the map to add the first one.
Koh Rong climate normals — August
| Daytime high | 30°C / 85°F | 🥵 hot |
|---|---|---|
| Nighttime low | 26°C / 79°F | |
| Sea temperature | 30°C / 85°F | ♨️ bath-warm |
| Rainfall | 460 mm / 18.1 in | ⛈ soaked |
| Rainy days | 29 days | |
| Humidity | 87% | 💦 very humid |
| Dew point | 26°C / 78°F | |
| Sunshine | 8.6 h/day | |
| Daylight | 12.5 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 35 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Koh Rong in August
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.
Shoulder seasonschool holidays in 4 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Koh Rong's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherKoh Rong's weather peaks December–February.
Best weatherFair weatherToughest weather
What's on in Koh Rong in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Rough crossings in the wet
1 Jun – 15 Oct · usuallyMonsoonRiskThe southwest monsoon puts a swell across the channel and the fast boats from Sihanoukville get cancelled at short notice. Leave a spare day either side of a flight.
- Season
Wet season
MonsoonRisk29 rainy days and about 460 mm in the month — the real kind of rainy season, not afternoon showers.
from the climate normals
Nearby, and something's on
Within 300 km of Koh Rong — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Koh Rong?
Koh Rong in August — FAQ
- Is August a good time to visit Koh Rong?
- August in Koh Rong: hot, soaked, with clean air — a gamble, with 29 rainy days. It ranks #9 of 12 months for Koh Rong on SeasonMap's comfort score (59/100).
- What is the weather like in Koh Rong in August?
- In August, Koh Rong averages a daily high of 29.6°C and a low of 26.2°C, with about 459.6 mm of rain over roughly 29.2 rainy days.
- What is the air quality in Koh Rong in August?
- Koh Rong has a mean US Air Quality Index of about 35 in August.
Other months in Koh Rong
Compare Koh Rong in August
Warmer or cooler than Koh Rong in August
Similar destinations in Southeast Asia — August
Within 300 km: Phu Quoc's Phu Quoc visa exemption on 1 Jan – 31 Dec.