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Koh Rong Island Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Koh Rong Island.
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Climate overview of Koh Rong Island
With consistently stable weather, Koh Rong Island, Preah Sihanouk Province, Cambodia, sees little seasonal temperature change. Daytime highs average 30°C (86°F), ranging from 30°C (86°F) in April to 29°C (84°F) in January.
The city receives considerable rainfall, with around 3214 mm (127 in) annually. July is the wettest month. It has a distinct rainy season from May to October. Sunshine peaks in January, when the city sees around 9.0 hours of sunshine per day.
Koh Rong Island Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Koh Rong Island - and find the best time to visit.
Monthly Temperature in Koh Rong Island
The climate in Koh Rong Island remains fairly constant, offering comfortable temperatures throughout the year. Typically, average maximum daytime temperatures range from a very warm 30°C (86°F) in April to a comfortable 29°C (84°F) in the coolest month, January.
Nights vary from 27°C (81°F) in April to around 26°C (79°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Koh Rong Island
Koh Rong Island is known for its substantial rainfall, with annual precipitation reaching 3214 mm (127 in). The climate in Koh Rong Island shows significant variation throughout the year. Expect heavy rainfall in July, the wettest month, with an average of 538 mm (21 in) of precipitation over 20 rainy days.
In contrast, the driest month January offers drier and sunnier days, with around 40 mm (1.6 in) of rainfall over 5 rainy days. For more details, please visit our Koh Rong Island Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Koh Rong Island
For those who appreciate different seasons, Koh Rong Island serves as an ideal destination. Expect longer, more sun-filled days in January with an average of 9.0 hours of sunshine daily, and embrace the darker days in September, offering only 4.9 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Sihanoukville, Cambodia (32 KM, 20 Miles).
Daily hours of sunshine
Data from: Sihanoukville, Cambodia (32 KM, 20 Miles).
Best Time to Visit Koh Rong Island
Conditions in Koh Rong Island are generally most comfortable in January and February. They are typically least comfortable in May, June, July, August, September and October.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
excellent
Feb
excellent
Mar
good
Apr
mixed
May
very wet
Jun
very wet
Jul
very wet
Aug
very wet
Sep
very wet
Oct
very wet
Nov
mixed
Dec
good
- Best overall: January and February
- Warmest weather: all year round
- Most sunshine: January, March and December
- Fewest rainy days: January, February and March
- Wettest months: May, June, July, August, September and October, when rainfall is highest.
- Seasonal pattern: A distinct rainy season from May to October
Frequently asked questions about the climate in Koh Rong Island
What is the best time to visit Koh Rong Island?
January and February typically offer the most optimal weather in Koh Rong Island. In contrast, May, June, July, August, September and October tend to have less optimal conditions. Koh Rong Island has a distinct rainy season from May to October.
What temperatures can I expect in Koh Rong Island?
Daytime highs range from 29°C (84°F) in January to 30°C (86°F) in April. Nighttime lows range from 26°C (79°F) to 27°C (81°F). Temperatures stay relatively stable year-round.
How much rain does Koh Rong Island get?
Annual rainfall is around 3214 mm (127 in). July is the wettest month with 538 mm (21 in), while January is the driest with 40 mm (1.6 in).
How sunny is Koh Rong Island?
Koh Rong Island receives around 2,633 hours of sunshine per year. January is the sunniest month with 270 hours, while September is the cloudiest with just 148 hours. Overall, Koh Rong Island enjoys abundant sunshine.
Koh Rong Island 3-Day Forecast
Koh Rong Island on the map
Koh Rong Island is highlighted - select any city to see its climate.
Popular in October
Where to go in October - average daytime high across popular destinations.
Battambang
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