Riederalp Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Riederalp, Canton of Valais, Switzerland. This average is based on long-term data collected between 1990 and 2020. Now, let's explore all the details to give you a full picture.

Riederalp has a notably wet climate with abundant precipitation, recording 1786 mm (70 in) of rain/snowfall per year. It does, however, have a distinct rainy season during certain months. Have a look at our detailed charts below to see how precipitation varies throughout the year.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm (0.01 in))

Precipitation levels in Riederalp remain relatively steady throughout the year. July has the most rain, with 175 mm (6.9 in) over 18 days. In February, this drops slightly to 116 mm (4.6 in), making the city's climate fairly predictable.

July, the wettest month, has a maximum daytime temperature of 17°C (63°F). The city receives 219 hours of sunshine in this period. During the driest month February you can expect a temperature of -3°C (27°F). For more detailed insights into the city's temperatures, visit our Riederalp Temperature page.

Riederalp's average annual precipitation is 1786 mm (70 in). Let's compare this to some popular worldwide tourist destinations:

Athens, Greece, receives an average annual precipitation of 400 mm (16 in), making it one of the drier Mediterranean climates with rainfall mostly in winter.

Beijing, China, receives 560 mm (22 in) of annual precipitation, concentrated in the summer months.

Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.

Singapore, situated near the equator, gets 2581 mm (102 in) of rainfall annually, with no distinct dry season and consistent monthly precipitation.

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.

Climate change is affecting precipitation patterns worldwide, including Riederalp:

• Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
• Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.

• The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
• Approximately 70% of lightning bolts strike land rather than oceans.
• A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.

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