Sihanoukville Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows both the average monthly rainfall and the number of rainy days in Sihanoukville, Preah Sihanouk Province, Cambodia. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Now, let’s explore all the details to give you a full picture.

Sihanoukville is known for its substantial rainfall, with annual precipitation reaching 3382 mm.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm)

The climate in Sihanoukville shows significant variation throughout the year. Expect 583 mm of precipitation during the wettest month July, distributed over 20 rainy days.

In contrast, February offers drier and sunnier days, with around 38 mm of rainfall over 5 rainy days.

July, the wettest month, has a maximum daytime temperature of 30°C. The city receives 170 hours of sunshine in this period. During the driest month February you can expect a temperature of 30°C. For more detailed insights into the city’s temperatures, visit our Sihanoukville Temperature page.

Annual Precipitation in Cambodia

The map below shows the annual precipitation across Cambodia. You can also select the different months in case you are interested in a specific month.

Amsterdam Precipitation Compared World Wide

Sihanoukville’s average annual precipitation is 3382 mm. Let’s compare this to some popular worldwide tourist destinations:

Boston, USA, experiences 1238 mm of annual precipitation, including significant snowfall during the winter.

Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm of annual rainfall, mostly in the summer.

Adelaide, Australia, enjoys 511 mm of annual precipitation, with dry summers and wet winters.

Kuala Lumpur, Malaysia, receives 2529 mm of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.

How is Precipitation Measured?

Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.

Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.

How Does Precipitation Affect Local Climate?

Precipitation has a very strong role in determining the local climate and ecosystem:

• Rainy Seasons: Many parts of the world have well-defined wet seasons where precipitation is distinctly higher. These are normally accompanied by lush vegetation and temperature patterns.
• Dry Seasons: In areas where the climate is either desert or Mediterranean, the amount of precipitation is drastically reduced, leading to a shortage of water and arid conditions.

For more detailed information about Sihanoukville’s weather, including sunshine hours, humidity levels, and temperature data, visit our Sihanoukville Climate page.