Siviez Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Siviez, Canton of Valais, Switzerland. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020. Now, let's break down all the details for a clearer picture.
Siviez has a relatively rain/snowy climate with high precipitation levels, averaging 1561 mm (61 in) of rain/snowfall annually.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Despite minor fluctuations, Siviez enjoys fairly consistent precipitation throughout the year. In June, you can expect around 154 mm (6.1 in) of precipitation, while in March, Siviez receives about 110 mm (4.3 in).
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 March you can expect a temperature of 3°C (37°F). For more detailed insights into the city's temperatures, visit our Siviez Temperature page.
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Explore Siviez's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Siviez spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Switzerland: City Comparison
The map below shows the annual precipitation across Switzerland. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Siviez vs World: Rainfall Compared
Siviez's average annual precipitation is 1561 mm (61 in). Let's compare this to some popular worldwide tourist destinations:
The climate in San Francisco, USA, is influenced by coastal weather, with 469 mm (18 in) of rainfall mostly during the winter months.
In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.
Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.
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.
Precipitation has a very strong role in determining the local climate and ecosystem:
- 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 Siviez's weather, including sunshine hours, humidity levels, and temperature data, visit our Siviez Climate page.
