Sierre Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Sierre, Canton of Valais, Switzerland. These averages rely on historical data collected over 30 years, from 1990 to 2020. Let's now guide you through the details for a complete overview.

Sierre has a notably wet climate with abundant precipitation, recording 1568 mm (62 in) of rain/snowfall per year.

Monthly Precipitation Levels

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

The wettest period in Sierre occurs in June, which receives around 153 mm (6 in) of precipitation. During the driest month, October, Sierre experiences high rainfall, totaling approximately 112 mm (4.4 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate.

June, the wettest month, has a maximum daytime temperature of 16°C (61°F). The city receives 255 hours of sunshine in this period. During the driest month October you can expect a temperature of 10°C (50°F). For more detailed insights into the city's temperatures, visit our Sierre Temperature page.

Sierre's average annual precipitation is 1568 mm (62 in). Let's compare this to some popular worldwide tourist destinations:

The city of Rome, Italy, has an average annual precipitation of 832 mm (33 in), spread fairly evenly throughout the year.

In Shanghai, China, the annual average precipitation is 1347 mm (53 in), with a humid subtropical climate.

In Brisbane, Australia, the annual precipitation is 979 mm (39 in), making it wetter than Sydney.

Mumbai, India, experiences a tropical monsoon climate with 1860 mm (73 in) of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.

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.

• 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 Sierre's weather, including sunshine hours, humidity levels, and temperature data, visit our Sierre Climate page.