Koh Rong in November
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.