Koh Rong Sea Temperature
Cambodia · Forecast updated Jul 15, 2026, 06:23 UTC · refresh delayed
Current Sea Temperature
29.8°C
85.6°F
Very warm water
Versus this month's average
Close to average
The July average in our archive is 29.8°C (85.6°F).
Recent trend
Holding fairly steady
Seven-day average: 29.8°C, versus 29.7°C in the prior seven days.
What to wear
Very warm water
Swimwear is usually enough; a rash guard adds sun protection.
Cold tolerance varies. Wind, session length, sunshine, and exertion also affect comfort; temperature alone does not mean the sea is safe.
Sea Surface Temperature Over the Year
In the data collected for Koh Rong, monthly averages range from about 29.8°C (85.6°F) in July to 30.3°C (86.6°F) in June.
Over the past 30 days, the average sea temperature in Koh Rong has been 30.1°C.
Monthly Water Temperature Averages
| Month | Min | Average | Max |
|---|---|---|---|
| June | 29.8°C / 85.6°F | 30.3°C / 86.6°F | 31.1°C / 88.0°F |
| July | 29.1°C / 84.4°F | 29.8°C / 85.6°F | 30.3°C / 86.5°F |
Profile calculated from 1070 hourly forecast records across 2 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Koh Rong
Gulf island with clear shallows, reef patches and bioluminescent plankton.
- Area
- Preah Sihanouk
Koh Rong Water Temperature — Common Questions
What is the sea temperature in Koh Rong today?
The current sea surface temperature in Koh Rong is 29.8°C. Over the last 30 days, the average has been 30.1°C.
When is the water warmest in Koh Rong?
The warmest monthly average in the Koh Rong archive is June, at around 30.3°C (86.6°F).
When is the water coldest in Koh Rong?
The coldest monthly average in the archive is July, at around 29.8°C (85.6°F).
Can you swim in Koh Rong today?
Yes — at 29.8°C the water is warm enough for comfortable swimming and snorkeling.
Full Snorkeling Forecast
See how today's sea temperature, wave height, wind, and tides combine into a detailed snorkeling score for Koh Rong.
View Snorkel Forecast →