Koh Rong in June
Last fact-checked: October 2026. Climate figures are long-term averages for nearby Sihanoukville.
June is fully in the rainy season, but there are still sunny spells between the showers.
| Average daytime high | 31 °C |
| Average night-time low | 24 °C |
| Average rainfall | 509 mm |
| Average sea temperature | 29.9 °C |
Long-term averages for nearby Sihanoukville: World Meteorological Organization 1982-2024; sea temperature: seatemperature.org.
Weather
Expect frequent rain, around 500 mm over the month, and high humidity. The jungle is lush and green.
Sea and activities
The sea can be rough on some days and snorkeling visibility drops. Swim carefully and check the conditions locally.
Holidays and crowds
It is low season: quiet beaches, lower prices and plenty of choice in accommodation.
Best Beaches & Coast Conditions in June
Stay on the sheltered East & South-East Coast (Long Set Beach, Pagoda Beach, Coconut Beach, or Saracen Bay on Sanloem), where the island's hills block the southwest monsoon winds.
- Recommended Activities: Morning boat trips during sunny intervals, lush jungle trekking to Varisan Nureach and Prek Svay waterfalls, mangrove kayaking, and intense plankton bioluminescence.
- What to Pack & Booking Tip: Waterproof dry bag, quick-dry sandals with grip, light raincoat, insect repellent / coconut oil, and flexible onward travel plans.
Koh Rong Weather in June: FAQ
Does it rain all day on Koh Rong in June?
Rarely. While June brings around 500 mm of rain, it typically falls as heavy 1–2 hour afternoon or nighttime downpours, leaving 4 to 6 hours of warm sunshine and dramatic skies most days.
Are hotels cheaper on Koh Rong in June?
Yes! June marks the start of low season, with 4-star resorts and beachfront villas offering 30–50% discounts compared to January.
Do ferries still run to Koh Rong in June?
Yes, daily fast ferries operate throughout June, though schedules may occasionally shift if an afternoon squall passes through.