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

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

Roma typically sees modest rainfall throughout the year, with an average annual precipitation of 494 mm.

Monthly Precipitation Levels

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

The seasons in Roma, bring significant changes in precipitation. The wettest month, February, receives moderate rainfall, with an average of 78 mm of precipitation.

This rainfall is distributed across 10 rainy days. In contrast, the driest month, July, experiences much less rainfall, totaling 18 mm over 6 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.

February, the city’s wettest month, has a maximum daytime temperature of 33°C. During the driest month July you can expect a temperature of 21°C. For more detailed insights into the city’s temperatures, visit our Roma Temperature page.

Annual Precipitation in Australia

The map below shows the annual precipitation across Australia. You can also select the different months in case you are interested in a specific month.

Amsterdam Precipitation Compared World Wide

Roma’s average annual precipitation is 494 mm. Let’s compare this to some popular worldwide tourist destinations:

Seville, Spain, experiences 541 mm of rainfall annually, with wet winters and dry summers typical of southern Spain.

In Seoul, South Korea, the average annual precipitation is 1237 mm, with most rain falling during the summer monsoon season.

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

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

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