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Sihanoukville Climate by Month

Sihanoukville has pretty similar weather over the course of the year. It also has a notably wet climate with much precipitation. Now, let’s explore all the climate details to give you a full picture.

Average day and night temperature

The climate in Sihanoukville remains fairly constant, offering very warm temperatures throughout the year. Average daytime temperatures range from a very warm 31°C in April, the warmest time of the year, to a comfortable 29°C during cooler months like January. At night, temperatures typically average around 25°C during these months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Sihanoukville is known for its substantial rainfall, with annual precipitation reaching 3382 mm. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, July receives heavy rainfall, averaging 583 mm of precipitation, recorded across 20 rainy days. In contrast, the drier season, February brings less rainfall, with 38 mm over 5 rainy days.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Seasonal changes in sunshine hours are quite dramatic in Sihanoukville. While January receives considerable daily sunshine with up to 9.0 hours, September marks the darkest time of the year, where sunshine is scarce with only 4.9 hours of sunlight per day.

Monthly hours of sunshine

Daily hours of sunshine

The best time of year to visit Sihanoukville in Cambodia

Sihanoukville has high temperatures year round ranging between 29°C and 31°C.
The best time to visit is during the drier months: January, February and December.

Other facts from our historical weather data:
  • When is the rainy season in Sihanoukville?
    Rainy season in Sihanoukville occurs in the months of May, June, July, August, September and October.
  • Which is the hottest month in Sihanoukville?
    April has an average maximum temperature of 31°C and is the hottest month of the year.
  • Which is the coolest month in Sihanoukville?
    The coolest month is January with an average maximum temperature of 29°C.
  • Which is the wettest month in Sihanoukville?
    July tops the wettest month list with 583 mm of rainfall.
  • Which is the driest month in Sihanoukville?
    February is the driest month with 38 mm of precipitation.
  • Which is the sunniest month in Sihanoukville?
    January is the sunniest month with an average of 270 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Sihanoukville

    Thu   Nov 21
    34°C | 25°C
    NE 14 km/h
    0.3 mm
    broken clouds and small chance of slight rain

    broken clouds and small chance of slight rain

    Fri   Nov 22
    34°C | 25°C
    NE 14 km/h
    0.4 mm
    partly cloudy and small chance of slight rain

    partly cloudy and small chance of slight rain

    Sat   Nov 23
    33°C | 25°C
    SW 14 km/h
    0.7 mm
    partly cloudy and small chance of rain

    partly cloudy and small chance of rain