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

This page shows the average amount of rainfall per month in Formia. The numbers are calculated over a 30-year period to provide a reliable average. Now, let’s break down all the details for a clearer picture.

Formia is known for its substantial rainfall, with annual precipitation reaching 1159 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 207 mm of precipitation, recorded across 15 rainy days.

In contrast, the drier season, July brings less rainfall, with 18 mm over 5 rainy days.

November, the wettest month, has a maximum daytime temperature of 17°C. The city receives 126 hours of sunshine in this period. During the driest month July you can expect a temperature of 28°C. For more detailed insights into the city’s temperatures, visit our Formia 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

Formia’s average annual precipitation is 1159 mm. Let’s compare this to some popular worldwide tourist destinations:

Chicago, USA, sees an annual precipitation of 1062 mm, with rain and snow contributing to its humid climate.

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

Perth, Australia, receives 565 mm of rainfall annually, mostly during the winter months.

Singapore, situated near the equator, gets 2581 mm of rainfall annually, with no distinct dry season and consistent monthly precipitation.

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

• Mawsynram in India is noted as being the wettest place on earth, with over 11 meters of rain falling every year.
• In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm per year, with some years recording virtually no rainfall.
• Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.

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