July Weather in Viterbo, Italy

Last updated: August 23, 2025

In July, the average temperature in Viterbo, Italy hovers around 25°C (77°F), making it a pleasant time to visit. You can expect temperatures to range from a cool 15°C (60°F) to a warm 35°C (96°F). With an average humidity level of 57%, the climate is generally comfortable. However, be prepared for 32 mm (1.3 in) of precipitation over 4 days, so don’t forget to pack your umbrella!

July Temperature in Viterbo

In July in Viterbo, the average temperature is 25°C (77°F). Maximum temperatures can reach 35°C (96°F), while minimums can drop as low as 15°C (60°F). This diverse range makes it a perfect time for travelers to enjoy outdoor activities and explore the local attractions comfortably.

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

The chart illustrates July 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, July typically has an average temperature of 25°C (77°F), with highs reaching up to 35°C (96°F) and lows dropping to around 15°C (60°F).

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

July Precipitation in Viterbo

In Viterbo in July, the total precipitation amount is 32 mm (1.3 in), accumulated over a period of 4 days.

July Precipitation Trends in Viterbo

The chart displays monthly precipitation patterns in Viterbo, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Viterbo, July typically receives around 32 mm (1.3 inches) of precipitation spread over approximately 4 days.

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

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Millimeters (mm) Inches (in)

July Humidity in Viterbo

In Viterbo in July, humidity is 57%. With an average temperature of 25°C (77°F), this humidity feels like a warm embrace, making it perfect for leisurely strolls and outdoor adventures, though it's advisable to stay hydrated and take breaks in the shade.

July Average Humidity in Viterbo

This chart illustrates the average monthly humidity levels in Viterbo, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Viterbo is approximately 57%, offering insight into how humid the weather typically is during this month.

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

July UV Index in Viterbo

In Viterbo in July, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Viterbo.

Maximum UV Index Levels in Viterbo for July

The chart shows the monthly maximum UV Index (UVI) for Viterbo in July, 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 July, the maximum UV index in Viterbo typically reaches 10, which falls under the very high exposure category.

Data source: Viterbo July 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 July 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 July’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 July’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