Rorschach Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Rorschach, St.Gallen Canton, Switzerland. These averages rely on historical data collected over 30 years, from 1990 to 2020. Now, let's explore all the details to give you a full picture.

Rorschach has a notably wet climate with abundant precipitation, recording 1534 mm (60 in) of rain/snowfall per year.

Monthly Precipitation Levels

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

Rorschach offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between June (174 mm (6.9 in)) and January (97 mm (3.8 in)) is not too significant, making the climate enjoyable for visitors and residents alike.

June, the wettest month, has a maximum daytime temperature of 22°C (72°F). The city receives 202 hours of sunshine in this period. During the driest month January you can expect a temperature of 4°C (39°F). For more detailed insights into the city's temperatures, visit our Rorschach Temperature page.

Rorschach's average annual precipitation is 1534 mm (60 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 Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.

Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.

Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm (66 in) of annual rainfall, with the heaviest precipitation occurring during September and October.

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