Average Monthly Sunshine in Viterbo

The graphs on this page shows the average number of hours per month and per day that Viterbo receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

Monthly hours of sunshine

Seasonal sunshine in Viterbo varies. It peaks at 332 hours in July and drops to 112 hours in December. The total annual amount of sun is 2470 hours.

Daily hours of sunshine

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.

Viterbo’s total hours of sunshine compared to other major cities

Viterbo enjoys an average of 2470 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Barcelona, Spain, there are 2530 hours of sunshine annually and is a city that can be visited year-round.

In contrast, Brussels, UK, receives only about 1590 hours of sunshine per year, known for its frequently overcast and rainy skies.

Osaka, Japan, experiences 2010 hours of sunshine annually, with bright, sunny weather in spring and autumn.

Adelaide, Australia, enjoys 2770 hours of sunshine annually, with long, sunny summers.

Other climate information

November, Viterbo’s wettest month, receives 39 mm of rainfall and has a maximum daytime temperature of 16°C. During the driest month July you can expect a temperature of 31°C.

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Precipitation page.