SeasonMapKoh Rong weather in July
Cambodia
July in Koh Rong: hot, soaked, with clean air — a gamble, with 29 rainy days.
#11 of 12 months in Koh Rong · #1166 of 1383 destinations to visit in July · comfort 55/100 (tier D)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Koh Rong in July
Notes from nearby Phu Quoc (95 km away)
Koh Rong doesn't have its own notes for July yet — these are about Phu Quoc, close enough to share the season.
Phu Quoc's forum calls July rainy season but not the peak of it, with rain most days though rarely an all-day washout, and rougher seas particularly on the island's west side. Regulars note conditions vary a lot by luck and by which coast you're on, with the calmer southeast side a better bet, and several suggest waiting for October or November if reliable beach weather matters more than the trip dates.
Add your own note from Koh Rong's card on the map.
Koh Rong climate normals — July
| Daytime high | 30°C / 85°F | 🥵 hot |
|---|---|---|
| Nighttime low | 26°C / 79°F | |
| Sea temperature | 29°C / 85°F | ♨️ bath-warm |
| Rainfall | 527 mm / 20.7 in | ⛈ soaked |
| Rainy days | 29 days | |
| Humidity | 88% | 💦 very humid |
| Dew point | 25°C / 78°F | |
| Sunshine | 8.2 h/day | |
| Daylight | 12.7 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 42 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Koh Rong in July
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.
Quietschool holidays in 5 of the markets that fill it, one of its worst months for weather(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).
Toughest weatherKoh Rong's weather peaks December–February.
Best weatherFair weatherToughest weather
What's on in Koh Rong in July
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 527 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 July — FAQ
- Is July a good time to visit Koh Rong?
- July in Koh Rong: hot, soaked, with clean air — a gamble, with 29 rainy days. It ranks #11 of 12 months for Koh Rong on SeasonMap's comfort score (55/100).
- What is the weather like in Koh Rong in July?
- In July, Koh Rong averages a daily high of 29.7°C and a low of 26.2°C, with about 526.9 mm of rain over roughly 29.2 rainy days.
- What is the air quality in Koh Rong in July?
- Koh Rong has a mean US Air Quality Index of about 42 in July.
Other months in Koh Rong
Compare Koh Rong in July
Warmer or cooler than Koh Rong in July
Similar destinations in Southeast Asia — July
Within 300 km: Phu Quoc's Phu Quoc visa exemption on 1 Jan – 31 Dec.