Castel San Pietro Romano Weather & Climate: Best Time to Visit

In Castel San Pietro Romano, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a very warm 31°C (88°F) in August to a chilly 11°C (52°F) in January.

Nighttime temperatures range from 18°C (64°F) in August to 2°C (36°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Castel San Pietro Romano experiences significant rain/snowfall throughout the year, averaging 1140 mm (45 in) of precipitation annually. The seasons in Castel San Pietro Romano bring significant changes in precipitation. The wettest month, November, receives high rainfall, with an average of 154 mm (6.1 in) of precipitation. This rainfall is distributed across 15 rainy days.

In contrast, the driest month, July, experiences much less rainfall, totaling 37 mm (1.5 in) over 5 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Castel San Pietro Romano Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

In Castel San Pietro Romano, summer days are longer and more sunny, with daily sunshine hours peaking at 11.1 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 3.7 hours per average day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Castel San Pietro Romano.

The city experiences its highest humidity in November, reaching 77%. In July, the humidity drops to its lowest level at 72%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year