If you’re planning a trip to Koh Rong or to Koh Rong Samloem in 2018, there are a couple of things you should keep in mind.

In 2018 the weather on Koh Rong has been a little unpredictable. Firstly, we had a few short bursts of heavy rain randomly spread out throughout the peak season (middle of November to the start of May). The rain was very rare, so it shouldn’t affect your trip here if you’re planning to come next peak season (November 2018).

Today’s Weather on Koh Rong
25°
broken clouds
humidity: 96%
wind: 2m/s WNW
H 25 • L 25
30°
Wed
29°
Thu
28°
Fri
29°
Sat
Weather from OpenWeatherMap

Secondly, on some days the weather forecast predicted rain, but it was actually very sunny, while on other days the weather forecast predicted a lot of sun, when instead it rained.

To conclude – Just come over, we promise you’ll have a great time!

(If you’re planning a trip to Koh Rong or to Koh Rong Samloem, please bookmark this page as we will regularly update it with the latest weather information)

Best Time to Visit Koh Rong

We would still say that the best time to visit Koh Rong and its sister island Koh Rong Samloem is between the middle of November and the start of May. During these months you’ll have beautiful hot days with very little cloud and low humidity. Take a look at these videos to see how spectacular Koh Rong is during peak season:

 

One thing to note is that, although it is wonderfully hot throughout the peak season, there are several advantages of visiting Koh Rong during the rainy season.

For example, those that visit during the rainy season get to enjoy half-priced accommodation and beautiful rainy scenes, and because it never gets too cold in Cambodia, swimming in the ocean is still a very pleasurable experience (the water rarely drops beneath 25°C). Take a look at this article for more information: 5 Reasons to Visit Koh Rong in Rainy Season

Average Temperatures on Koh Rong

To give you a rough idea of the average temperatures over this past year:

Middle of November / December / January / February: Warm and dry. 25°C daytime.
March / April / May: Hot and dry. 35°C daytime.
June / July / August: Hot and wet. 35°C daytime.
September / October / Early November: Warm and wet. 25°C daytime.

Koh Rong Weather Chart

 

Koh Rong’s Climate Over Time

In general, Koh Rong’s weather patterns tend to be consistent over time, being strongly dependent on the direction of the wind and Koh Rong’s close proximity to the equator in the Gulf of Thailand. (Because the two islands are very close to each other, Koh Rong Samloem’s weather patterns are identical).

Between the end of November and the start of March the hot dry weather comes from the north-east direction, while between June and September the rain and wind come from the south-west.

Koh Rong Weather Chart

 

The average monthly maximum temperature in the above charts is the average air temperature in shaded areas. As such, Koh Rong temperatures in direct sunlight are much higher.

Although the temperatures on Koh Rong do not vary much over the course of a year, humidity on the island varies significantly, with April and May being particularly humid and December and January very dry.

Koh Rong Weather Chart

 

The amount of sunshine on Koh Rong and on Koh Rong Samloem is very dependent on the season, with the dry season having significantly more sun than the rainy season.

Images courtesy of www.weather-guide.com

FAQ

Q: When is the best time to visit Koh Rong?

A: The best time to visit Koh Rong is between the middle of November and the start of May. During these months you’ll have beautiful hot days with very little cloud and low humidity.

Q: When is the rainy season on Koh Rong?

A: The rainy season on Koh Rong is from the middle of May to early November. During these months there will be short bursts of heavy rain during the day.

Q: What is the weather like on Koh Rong in October?

A: In October, the weather on Koh Rong should be warm but wet, with an average temperature of 25°C daytime.

Q: What is the weather like on Koh Rong in February?

A: At the start of February, the weather on Koh Rong should be warm and dry, with an average temperature of 25°C during the day. As the month progresses, it should start to get gradually hotter, reaching temperatures of 35°C by the end of the month.

Q: What is the weather like on Koh Rong in July?

A: The weather on Koh Rong in July should be hot and wet, with an average temperature of 35°C daytime. Expect short bursts of heavy rain during the day.

Q: What is the weather like on Koh Rong in August?

A: At the start of August, the weather on Koh Rong should be hot but wet, with an average daytime temperature of 35°C. The weather will start to cool throughout the month, reaching temperatures of 25°C by the end. Similarly to July, expect short bursts of heavy rain during the day throughout the whole month.

Useful Resource: accuweather.com

 

Comments

  • Marta Trujillo
    Reply

    Buenos días,

    Estamos pensando en venir a pasar 2 noches a Koh Rong Sanloem este mes de agosto. Las lluvias duran todo el día? Que tiempo estáis teniendo?

    Muchas gracias

    • Visit Koh Rong
      Reply

      Hello. It’s quite hard to say what the weather will be like in August, but the rain should be starting so subside by then – check the weather forecast regularly before you come!

  • Brenda
    Reply

    Hola! Planeo ir a Koh rong en junio, es recomendable? o no voy a poder disfrutar de la playa. Realmente me preocupa mucho el tema de las lluvias. Gracias desde ya, aguardo información

    • Visit Koh Rong
      Reply

      Hello again. It is difficult to say what the weather will be like at the start of June, but you might just be OK – please check the weather forecasts though before you go…

  • Brenda
    Reply

    Hola! Estaré en la isla de koh rong los primero días de Junio. Realmente es un lugar que deseo mucho conocer pero temo ir y que llueva todos los días. Podrían informarme si junio es un mes donde podré disfrutar de la playa o lloverá mucho? gracias desde ya, espero respuestas! saludos

    • Visit Koh Rong
      Reply

      Hello. It is quite difficult to predict what the weather will be like at the start of June, but you might just be OK – please check the weather forecasts though before you go…

  • Karine
    Reply

    Bonjour à vous,merci pour ce site fort institut! Je suis sur koh rong Salaem depuis ce matin pour quelques jours, et le temps est de plus en plus nuageux. J ai même vu qu il devrait pleuvoir. Pourriez vous me confirmer (ou m infirmer, je prefererai!) Merci! Ka

  • Jade
    Reply

    is around the end of october a good time to go to koh rong? my friends and I (we’re all like 14-15 year olds tho so.. no experience) are planning to go to koh rong without adults and (probably a bad idea) we’re not sure whether october is a good time to go since it seems to be raining pretty hard these few weeks in phnom penh. also, there seems to be a really bad change in the weather in 2017..