September Weather in Granvilla, Italy

Last updated: August 23, 2025

In September, the average temperature in Granvilla, Italy hovers around 12°C (54°F). Expect a range from a chilly 0°C (33°F) to a comfortable 23°C (74°F). Be prepared for some rain as 221 mm (8.7 in) of precipitation can fall over 17 days, contributing to an average humidity of 74%.

September Temperature in Granvilla

In September in Granvilla, the average temperature is 12°C (54°F). Maximum temperatures can reach up to 23°C (74°F), while minimum temperatures can drop as low as 0°C (33°F). This weather makes Granvilla an ideal destination for travelers looking for a mild climate with some potential for crisp, cool days.

September Weather in Granvilla: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Granvilla, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Granvilla, September typically has an average temperature of 12°C (54°F), with highs reaching up to 23°C (74°F) and lows dropping to around 0°C (33°F).

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

September Precipitation in Granvilla

In Granvilla in September, the precipitation amount is 221 mm (8.7 in) over the course of 17 days.

September Precipitation Trends in Granvilla

The chart displays monthly precipitation patterns in Granvilla, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Granvilla, September typically receives around 221 mm (8.7 inches) of precipitation spread over approximately 17 days.

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

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Millimeters (mm) Inches (in)

September Humidity in Granvilla

In Granvilla in September, humidity is 74%. With an average temperature of 12°C (54°F), this humidity feels like a chilly embrace that can dampen your travel experience, making it essential to dress in layers and prepare for an unexpected drizzle while exploring the sights.

September Average Humidity in Granvilla

This chart illustrates the average monthly humidity levels in Granvilla, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Granvilla is approximately 74%, offering insight into how humid the weather typically is during this month.

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

September UV Index in Granvilla

In Granvilla in September, 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 Granvilla.

Maximum UV Index Levels in Granvilla for September

The chart shows the monthly maximum UV Index (UVI) for Granvilla in September, 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 September, the maximum UV index in Granvilla typically reaches 7, which falls under the high exposure category.

Data source: Granvilla September 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 September Weather in Granvilla Compares to Other Months

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

This table compares monthly weather conditions in Granvilla, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (24°F)	58 mm (2.3 inches)	91%	low
February Weather	-1°C (30°F)	86 mm (3.4 inches)	87%	moderate
March Weather	2°C (35°F)	115 mm (4.5 inches)	82%	high
April Weather	6°C (43°F)	183 mm (7.2 inches)	79%	high
May Weather	10°C (50°F)	251 mm (9.9 inches)	74%	very high
June Weather	15°C (60°F)	233 mm (9.2 inches)	75%	very high
July Weather	16°C (61°F)	250 mm (9.9 inches)	74%	very high
August Weather	16°C (61°F)	317 mm (12.5 inches)	68%	very high
September Weather	12°C (54°F)	221 mm (8.7 inches)	74%	high
October Weather	8°C (46°F)	191 mm (7.5 inches)	88%	moderate
November Weather	3°C (37°F)	226 mm (8.9 inches)	90%	moderate
December Weather	-3°C (27°F)	176 mm (6.9 inches)	89%	low