Koh Rong Sanloem Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Koh Rong Sanloem.

Climate overview of Koh Rong Sanloem

The climate in Koh Rong Sanloem, Preah Sihanouk Province, Cambodia, is remarkably consistent, with temperatures year-round averaging 30°C (86°F). The warmest month is May at 31°C (88°F), and the coolest is January at 29°C (84°F).

The city has a wet climate, receiving around 3133 mm (123 in) of rainfall per year. Despite the high annual total, it has a distinct rainy season from May to October. September is the wettest month. The most sunshine falls in January, with an average of 9.0 hours of daily sunshine.

Koh Rong Sanloem Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Koh Rong Sanloem — and find the best time to visit.

Monthly Temperature in Koh Rong Sanloem

In Koh Rong Sanloem temperatures are generally consistent throughout the year. On average, daytime temperatures range from a very warm 31°C (88°F) in May to a comfortable 29°C (84°F) in January.

Nighttime temperatures range from 27°C (81°F) in May to 26°C (79°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Koh Rong Sanloem

Koh Rong Sanloem experiences significant rainfall throughout the year, averaging 3133 mm (123 in) of precipitation annually. The seasons in Koh Rong Sanloem bring significant changes in precipitation. The wettest month, September, receives heavy rainfall, with an average of 518 mm (20 in) of precipitation. This rainfall is distributed across 21 rainy days.

In contrast, the driest month, February, experiences much less rainfall, totaling 40 mm (1.6 in) over 5 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Koh Rong Sanloem Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Sunshine Hours in Koh Rong Sanloem

In Koh Rong Sanloem, summer days are longer and more sunny, with daily sunshine hours peaking at 9.0 hours in January. As the darker season arrives, the brightness of the sun becomes less. September sees a soft sun for only 4.9 hours per average day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Sihanoukville, Cambodia (25 KM, 15 Miles).

Daily hours of sunshine

Data from: Sihanoukville, Cambodia (25 KM, 15 Miles).

Best Time to Visit Koh Rong Sanloem

The warm weather in Koh Rong Sanloem maintains temperatures between 29°C (84°F) and 31°C (88°F) year-round. Plan your visit during January, February, March, April, November and December for drier days and the best conditions to enjoy being outside.

To make the most of your visit, consider exploring early in the morning or during the pleasant late afternoon hours when the temperature is most comfortable.

Be aware that May, June, July, August, September and October constitute the rainy season, with significant precipitation.

Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.

Frequently asked questions about the climate in Koh Rong Sanloem

What is the best time to visit Koh Rong Sanloem?

January and February typically offer the most optimal weather in Koh Rong Sanloem. In contrast, May, June, July, August, September and October tend to have less optimal conditions. Koh Rong Sanloem has a distinct rainy season from May to October.

What temperatures can I expect in Koh Rong Sanloem?

Daytime highs range from 29°C (84°F) in January to 31°C (88°F) in May. 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 Sanloem get?

Annual rainfall is around 3133 mm (123 in). September is the wettest month with 518 mm (20 in), while February is the driest with 40 mm (1.6 in).

How sunny is Koh Rong Sanloem?

Koh Rong Sanloem 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 Sanloem enjoys abundant sunshine.

Koh Rong Sanloem 3-Day Forecast

Koh Rong Sanloem 3-Day Forecast

Koh Rong Sanloem on the map

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