Castelli Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Castelli. 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.

Castelli has a relatively rain/snowy climate with high precipitation levels, averaging 1088 mm of rain/snowfall annually.

Monthly Precipitation Levels

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

Precipitation levels in Castelli remain relatively steady throughout the year. April has the most rain, with 107 mm over 14 days. In August, this drops slightly to 72 mm, making the city's climate fairly predictable.

April, the city’s wettest month, has a maximum daytime temperature of 16°C and receives 192 hours of sunshine. During the driest month August you can expect a temperature of 28°C. For more detailed insights into the city’s temperatures, visit our Castelli 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

Castelli’s average annual precipitation is 1088 mm. Let’s compare this to some popular worldwide tourist destinations:

The climate in San Francisco, USA, is influenced by coastal weather, with 469 mm of rainfall mostly during the winter months.

Osaka, Japan, experiences 1507 mm of rainfall annually, spread across the year with wetter summers.

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

Kuala Lumpur, Malaysia, receives 2529 mm of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.

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.

Sea vs. Land Precipitation

The proximity of a location to a large body of water can significantly affect its rainfall patterns:

• Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
• Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.

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