September Weather in Sonnino, Italy

Last updated: August 23, 2025

In September, the average temperature in Sonnino, Italy is a comfortable 21°C (70°F). Expect a minimum of 7°C (45°F) and a maximum of 33°C (92°F). During this month, you'll likely experience 99 mm (3.9 in) of precipitation spread over about 10 days, contributing to an average humidity of 65%—perfect for enjoying the lush surroundings!

September Temperature in Sonnino

In September in Sonnino, the average temperature is 21°C (70°F). The maximum can reach 33°C (92°F), and the minimum can be as low as 7°C (45°F). This makes it a great time for travelers to enjoy mild and pleasant weather while exploring the area.

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

The chart illustrates September temperature patterns in Sonnino, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sonnino, September typically has an average temperature of 21°C (70°F), with highs reaching up to 33°C (92°F) and lows dropping to around 7°C (45°F).

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

September Precipitation in Sonnino

In Sonnino in September, the total precipitation amount is 99 mm (3.9 in) spread over a period of 10 days.

September Precipitation Trends in Sonnino

The chart displays monthly precipitation patterns in Sonnino, 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 Sonnino, September typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 10 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 Sonnino

In Sonnino in September humidity is 65%. With an average temperature of 21°C (70°F), this humidity feels quite sticky and can make outdoor activities feel a bit tiring; it's best to stay hydrated and take breaks in the shade while exploring.

September Average Humidity in Sonnino

This chart illustrates the average monthly humidity levels in Sonnino, 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 Sonnino is approximately 65%, 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 Sonnino

In Sonnino in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Sonnino.

Maximum UV Index Levels in Sonnino for September

The chart shows the monthly maximum UV Index (UVI) for Sonnino 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 Sonnino typically reaches 8, which falls under the very high exposure category.

Data source: Sonnino 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 Sonnino Compares to Other Months

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

This table compares monthly weather conditions in Sonnino, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (43°F)	79 mm (3.1 inches)	84%	moderate
February Weather	8°C (47°F)	107 mm (4.2 inches)	76%	moderate
March Weather	10°C (50°F)	106 mm (4.2 inches)	69%	high
April Weather	13°C (55°F)	88 mm (3.5 inches)	70%	high
May Weather	17°C (63°F)	92 mm (3.6 inches)	70%	very high
June Weather	22°C (72°F)	55 mm (2.2 inches)	61%	very high
July Weather	25°C (77°F)	32 mm (1.2 inches)	57%	very high
August Weather	25°C (78°F)	18 mm (0.7 inches)	53%	very high
September Weather	21°C (70°F)	99 mm (3.9 inches)	65%	very high
October Weather	16°C (61°F)	107 mm (4.2 inches)	75%	high
November Weather	12°C (54°F)	247 mm (9.7 inches)	81%	moderate
December Weather	8°C (46°F)	184 mm (7.3 inches)	84%	low