Zagarolo Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Zagarolo.
Climate overview of Zagarolo
The climate in Zagarolo, Lazio, Italy, is marked by large temperature swings across the seasons, ranging from 31°C (88°F) in August to 12°C (54°F) in January.
The city has a wet climate, receiving around 1096 mm (43 in) of rain/snowfall per year. Despite the high annual total, it has a distinct dry season from July to August, with very warm summers and cold winters. November is the wettest month. Sunshine peaks in July, when the city sees around 11.1 hours of sunshine per day.
Zagarolo Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Zagarolo - and find the best time to visit.
Monthly Temperature in Zagarolo
In Zagarolo, 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 12°C (54°F) in January.
Nighttime temperatures range from 19°C (66°F) in August to 2°C (36°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Zagarolo
Zagarolo experiences significant rain/snowfall throughout the year, averaging 1096 mm (43 in) of precipitation annually. The seasons in Zagarolo bring significant changes in precipitation. The wettest month, November, receives high rainfall, with an average of 151 mm (5.9 in) of precipitation. This rainfall is distributed across 15 rainy days.
In contrast, the driest month, July, experiences much less rainfall, totaling 35 mm (1.4 in) over 5 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Zagarolo Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Zagarolo
In Zagarolo, 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
Humidity in Zagarolo by Month
The relative humidity is high throughout the year in Zagarolo.
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
Best Time to Visit Zagarolo
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May and June
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: July and August
- Seasonal pattern: A distinct dry season from July to August, with very warm summers and cold winters
Frequently asked questions about the climate in Zagarolo
What is the best time to visit Zagarolo?
May and June typically offer the most optimal weather in Zagarolo. In contrast, December tends to have less optimal conditions. Zagarolo has a distinct dry season from July to August, with very warm summers and cold winters.
What temperatures can I expect in Zagarolo?
Daytime highs range from 12°C (54°F) in January to 31°C (88°F) in August. Nighttime lows range from 2°C (36°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Zagarolo get?
Annual rainfall is around 1096 mm (43 in). November is the wettest month with 151 mm (5.9 in), while July is the driest with 35 mm (1.4 in).
How sunny is Zagarolo?
Zagarolo receives around 2,473 hours of sunshine per year. July is the sunniest month with 332 hours, while December is the cloudiest with just 112 hours. Overall, Zagarolo enjoys abundant sunshine.
Zagarolo 3-Day Forecast
Zagarolo 3-Day Forecast
Zagarolo on the map
Zagarolo is highlighted - select any city to see its climate.
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