April Weather in Viterbo, Italy

Last updated: August 23, 2025

In Viterbo, Italy, the average temperature during April hovers around 13°C (55°F), offering a moderate climate for visitors. The temperature can dip as low as 0°C (32°F) and peak at 26°C (79°F), creating a pleasant range for outdoor activities. Be prepared for 74 mm (2.9 in) of precipitation spread over approximately 10 days, contributing to an average humidity level of 70%—perfect for enjoying the lush scenery!

April Temperature in Viterbo

In April in Viterbo, the average temperature is 13°C (55°F). The maximum can reach 26°C (79°F) and the minimum can be as low as 0°C (32°F). This makes it an ideal time for travelers to enjoy a range of outdoor activities while still being prepared for cooler evenings.

April Weather in Viterbo: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Viterbo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Viterbo, April typically has an average temperature of 13°C (55°F), with highs reaching up to 26°C (79°F) and lows dropping to around 0°C (32°F).

Data source: Temperature data for Viterbo generated using information from the Copernicus Climate Change Service.

April Precipitation in Viterbo

In Viterbo in April, the precipitation amount is 74 mm (2.9 in) spread over a period of 10 days.

April Precipitation Trends in Viterbo

The chart displays monthly precipitation patterns in Viterbo, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Viterbo, April typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

April Humidity in Viterbo

In Viterbo in April, humidity is 70%. With an average temperature of 13°C (55°F), this humidity feels like a chilly embrace, making traveling feel invigorating yet slightly damp, requiring layers to stay comfortable while exploring the sights.

April Average Humidity in Viterbo

This chart illustrates the average monthly humidity levels in Viterbo, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Viterbo is approximately 70%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Viterbo

In Viterbo in April, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Viterbo.

Maximum UV Index Levels in Viterbo for April

The chart shows the monthly maximum UV Index (UVI) for Viterbo in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Viterbo typically reaches 7, which falls under the high exposure category.

Data source: Viterbo April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How April Weather in Viterbo Compares to Other Months

Weather in Viterbo varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Viterbo, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Viterbo, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (43°F)	56 mm (2.2 inches)	84%	moderate
February Weather	8°C (47°F)	70 mm (2.7 inches)	76%	moderate
March Weather	10°C (49°F)	75 mm (2.9 inches)	68%	moderate
April Weather	13°C (55°F)	74 mm (2.9 inches)	70%	high
May Weather	17°C (63°F)	81 mm (3.2 inches)	69%	very high
June Weather	22°C (72°F)	35 mm (1.4 inches)	62%	very high
July Weather	25°C (77°F)	32 mm (1.3 inches)	57%	very high
August Weather	25°C (78°F)	30 mm (1.2 inches)	55%	very high
September Weather	21°C (69°F)	92 mm (3.6 inches)	66%	high
October Weather	16°C (61°F)	92 mm (3.6 inches)	79%	moderate
November Weather	12°C (54°F)	155 mm (6.1 inches)	84%	moderate
December Weather	8°C (47°F)	110 mm (4.3 inches)	83%	low