Alphen aan den Rijn Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Alphen aan den Rijn. The numbers are calculated over a 30-year period to provide a reliable average. Now, let’s break down all the details for a clearer picture.

Generally, Alphen aan den Rijn receives mid-range precipitation levels, with 915 mm annually.

Monthly Precipitation Levels

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

Alphen aan den Rijn offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between August (93 mm) and April (56 mm) is not too significant, making the climate enjoyable for visitors and residents alike.

August, the city’s wettest month, has a maximum daytime temperature of 23°C and receives 205 hours of sunshine. During the driest month April you can expect a temperature of 14°C. For more detailed insights into the city’s temperatures, visit our Alphen aan den Rijn Temperature page.

Annual Precipitation in the Netherlands

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

Amsterdam Precipitation Compared World Wide

Alphen aan den Rijn’s average annual precipitation is 915 mm. Let’s compare this to some popular worldwide tourist destinations:

The climate in San Francisco, USA, is influenced by coastal weather, with 469 mm of rainfall mostly during the winter months.

In Seoul, South Korea, the average annual precipitation is 1237 mm, with most rain falling during the summer monsoon season.

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

Ho Chi Minh City, Vietnam, receives 1955 mm of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

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 Alphen aan den Rijn’s weather, including sunshine hours, humidity levels, and temperature data, visit our Alphen aan den Rijn Climate page.