Koh Rong in November
Last fact-checked: October 2026. Climate figures are long-term averages for nearby Sihanoukville.
November marks the start of the dry season and is one of the best-value months to visit.
| Average daytime high | 31 °C |
| Average night-time low | 23 °C |
| Average rainfall | 118 mm |
| Average sea temperature | 29.5 °C |
Long-term averages for nearby Sihanoukville: World Meteorological Organization 1982-2024; sea temperature: seatemperature.org.
Weather
Rain drops sharply to around 120 mm over the month, and sunny days return, especially in the second half.
Sea and activities
The sea is warm, around 29-30°C, and becomes calmer and clearer as the month goes on.
Holidays and crowds
The Water Festival (23-25 November in 2026) is celebrated mainly in Phnom Penh. Prices on the island are usually still lower than in the December peak.
Best Beaches & Coast Conditions in November
Both the West Coast (Sok San / Long Beach) and East Coast (Long Set, Pagoda, Coconut Beach) return to calm, crystal-clear turquoise conditions as the dry season begins.
- Recommended Activities: Full resumption of all outer-reef scuba diving sites, island-hopping boat trips, west-coast sunset cruises, and scooter trips across lush green landscapes.
- What to Pack & Booking Tip: Sunglasses, swimwear, reef-safe sunscreen, and advance hotel bookings if visiting during the Cambodian Water Festival (Bon Om Touk).
Koh Rong Weather in November: FAQ
Is November a good time to visit Koh Rong?
November is one of the best months of the year: the jungle is still vibrant green from the rains, the waterfalls still trickle, the skies turn sunny (~118 mm rain, mostly early in the month), and the sea is 29.5 °C and calm.
When is the Water Festival (Bon Om Touk) in November?
Celebrated around the November full moon, this 3-day national holiday brings lively festivities and high domestic travel to Koh Rong—book ferries and rooms 2–3 weeks ahead.
Is underwater visibility good for diving in November?
Yes, visibility improves rapidly in November to 12–20 meters as sea swell subsides.