Isera Rainfall & Precipitation: Monthly Averages and Year-Round Insights
This page shows the average amount of rainfall per month in Isera. The numbers are calculated over a 30-year period to provide a reliable average. Let's now guide you through the details for a complete overview.
Isera is known for its substantial rain/snowfall, with annual precipitation reaching 1403 mm.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm)
Significant seasonal changes in precipitation occur throughout the year. During the wet season, November receives substantial rainfall, averaging 152 mm of precipitation, recorded across 12 rainy days.
In contrast, the drier season, January brings less snow/rainfall, with 58 mm over 10 snowy/rainy days.November, the wettest month, has a maximum daytime temperature of 9°C. During the driest month January you can expect a temperature of 5°C. For more detailed insights into the city’s temperatures, visit our Isera Temperature page.
Annual Precipitation in Italy
The map below shows the annual precipitation across Italy. You can also select the different months in case you are interested in a specific month.





Amsterdam Precipitation Compared World Wide
Isera’s average annual precipitation is 1403 mm. Let’s compare this to some popular worldwide tourist destinations:
New York City, USA, receives 1276 mm of rainfall annually, with precipitation evenly distributed throughout the year.
In Seoul, South Korea, the average annual precipitation is 1237 mm, with most rain falling during the summer monsoon season.
Perth, Australia, receives 565 mm of rainfall annually, mostly during the winter months.
Mumbai, India, experiences a tropical monsoon climate with 1860 mm of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.
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.
Interesting weather facts
- 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 Isera’s weather, including sunshine hours, humidity levels, and temperature data, visit our Isera Climate page.