Cambodia
Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
24.2km²
Area
39km
Coastline
202m
Highest point
30°C
Warmest sea
May
18km
To the mainland
When to go to Koh Rong Sanloem
Best for the beach from December to February.
The sea is warmest in May (30 °C) and coolest in January (28 °C). You can swim comfortably all year (21 °C or more).
Averages 1991–2020. Sea: NOAA OISST, the water within 35 km of the coast. Air, rain and sun: NASA POWER. Best months weigh warm afternoons (23–30 °C), sea of 24 °C or more and few wet days.
Island in Cambodia
Koh Rong Sanloem is an island in Cambodia. It covers 24.2 km², with 39 km of coastline. Its highest point rises to 202 m. The nearest mainland is 18 km away.
Getting there
- Sihanouk International Airport (KOS)nearest airport with scheduled flights · 37 km in a straight line
- FerriesSandy Beach -> Saracen Bay, Ko Rong Sanloem -> Sihanoukville, Sihanoukville -> Koh Rong Sanloem
- 18 km from the mainlanddistance to the nearest continental coast
- From December to Februarybest months to go (from 30 years of averages)
Plan the trip
Ferries, stays and things to do
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On the island
What you find on Koh Rong Sanloem.
- 8beachesSunset Beach, Sandy Beach, Lazy Beach and 5 more
- 10viewpointsMilitary Beach, Reef for Snorkeling, Snorkeling reef and 7 more
- 1lighthouses
- 4ferry terminalsKoh Rong Sanloem - Saracen Bay, Koh Rong Sanloem - Sandy Beach and 2 more
- 3waterfallsSmall waterfall, Big waterfall
- 2ruins and archaeological sitesRock carvings
- 4dive centresThe Dive Shop, Bubbles Up! Dive Center, New Dive Shop and 1 more
- 70hotels, guesthouses and apartments
- 47restaurants, cafés and bars
Counted in OpenStreetMap, the map anyone can edit, inside the island's outline. A low number may only mean nobody has mapped it yet.
The shape of the land.
On average the island stands 65 m above the sea. 100 % of it is below 200 m.
- 48 %0–50 m
- 52 %50–200 m
Share of the island's area in each altitude band, from the Copernicus DEM (30 m, read at 30–240 m on large islands).
Size, for real
Next to islands you may know.
5 km
All outlines drawn to the same scale (Natural Earth and OpenStreetMap).
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 28 | 28 | 29 | 30 | 30 | 29 | 29 | 29 | 28 | 28 | 29 | 28 |
| Night low (°C) | 26 | 27 | 27 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 27 | 27 |
| Sea (°C) | 28 | 28 | 29 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 |
| Rain (mm) | 33 | 24 | 68 | 125 | 239 | 348 | 414 | 345 | 389 | 245 | 135 | 53 |
| Wet days | 7 | 6 | 12 | 18 | 28 | 28 | 29 | 29 | 28 | 28 | 20 | 10 |
| Sun h/day | 7.6 | 8.1 | 7.8 | 7.3 | 5.7 | 4.7 | 4.1 | 4.0 | 3.9 | 5.6 | 7.0 | 7.5 |
| Wind (km/h) | 12 | 12 | 12 | 11 | 15 | 19 | 21 | 22 | 19 | 14 | 13 | 13 |
Averages 1991–2020 for the ~55 km NASA POWER cell over the island; the sea from NOAA OISST.
Recent years
Warmer and cooler years at sea.
Each month's sea temperature compared with its 1991–2020 average, in degrees.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | +0.6 | +0.4 | +0.4 | +0.5 | +0.6 | +0.7 | +0.9 | +1.1 | +0.9 | ±0.0 | −0.1 | ±0.0 |
| 2021 | −0.3 | −0.6 | −0.2 | −0.1 | ±0.0 | +0.1 | +0.2 | +0.2 | +0.3 | +0.3 | +0.5 | −0.1 |
| 2022 | +0.6 | +0.9 | +0.8 | +0.2 | −0.1 | +0.4 | +0.3 | +0.2 | +0.4 | +0.1 | +0.2 | −0.2 |
| 2023 | −0.5 | +0.2 | −0.3 | +0.5 | +0.7 | ±0.0 | +0.3 | +0.6 | +0.3 | +0.9 | +1.2 | +0.8 |
| 2024 | +1.0 | +1.1 | +0.6 | +1.0 | +1.2 | +0.7 | +0.3 | +1.0 | +0.7 | +0.8 | +1.0 | +0.4 |
| 2025 | −0.1 | +0.3 | +0.4 | +0.1 | +0.4 | −0.1 | −0.1 | +0.6 | ±0.0 | +0.3 | +0.1 | −0.1 |
+1 warmer than usual −1 cooler than usual
Photos
Seen by visitors.
Vietnam
Thailand
About these numbers
| Names, area, population | Wikidata (Q4930285) · CC0 |
|---|---|
| Outline | © OpenStreetMap contributors · ODbL |
| Sea temperature | NOAA OISST v2.1 · 1991–2020 |
| Climate | NASA POWER · 1991–2020 |
| Relief, 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Beaches, ports, lighthouses, trails | © OpenStreetMap contributors · ODbL |
| Towns | GeoNames · CC BY 4.0 |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
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