Rainy season

Cambodia: when is the rainy season?

The rainy season lasts from May to October, the dry season from December to March. Best time to travel, dry and with good holiday weather: December – January.

Precipitation by destination

  • Phnom Penh

    Rainy: from May to October

  • Siem Reap (Angkor)

    Rainy: from May to October

Long-term precipitation per month, mm. Rainy months: well above the place's own average (at least 100 mm); dry months: half the average or less, or under 60 mm.

Cambodia: rainy season, quick answers

Cambodia: when is the rainy season?

The rainy season lasts from May to October. On average, 269 mm fall in September, the wettest month.

Cambodia: when is the dry season?

The driest months are December – March, with 13 mm on average in January.

Cambodia: when is the best time to avoid the rain?

December – January: dry months with good holiday weather at most destinations.

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences