September Weather in Caltanissetta, Italy

Last updated: August 23, 2025

In September, average temperatures in Caltanissetta, Italy hover around 22°C (72°F), with a comfortable range from a cool 10°C (50°F) to a warm 32°C (90°F). Expect about 36 mm (1.4 in) of precipitation over 6 days, contributing to an average humidity level of 71%. Whether you're planning outdoor activities or cozy indoor retreats, this month offers a delightful mix of weather!

September Temperature in Caltanissetta

In September in Caltanissetta, the average temperature is 22°C (72°F). The maximum can reach 32°C (90°F), and the minimum can be as low as 10°C (50°F). This makes Caltanissetta a delightful destination for travelers seeking pleasant weather and a range of outdoor activities.

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

The chart illustrates September temperature patterns in Caltanissetta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Caltanissetta, September typically has an average temperature of 22°C (72°F), with highs reaching up to 32°C (90°F) and lows dropping to around 10°C (50°F).

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

September Precipitation in Caltanissetta

In Caltanissetta in September, the total precipitation amount is 36 mm (1.4 in), which falls over the course of 6 days.

September Precipitation Trends in Caltanissetta

The chart displays monthly precipitation patterns in Caltanissetta, 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 Caltanissetta, September typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 6 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 Caltanissetta

In Caltanissetta in September humidity is 71%. With an average temperature of 22°C (72°F), this humidity feels like the air is thick and slightly stifling, making outdoor activities require frequent breaks to stay hydrated and cool.

September Average Humidity in Caltanissetta

This chart illustrates the average monthly humidity levels in Caltanissetta, 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 Caltanissetta is approximately 71%, 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 Caltanissetta

In Caltanissetta in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Caltanissetta.

Maximum UV Index Levels in Caltanissetta for September

The chart shows the monthly maximum UV Index (UVI) for Caltanissetta 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 Caltanissetta typically reaches 9, which falls under the very high exposure category.

Data source: Caltanissetta 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 Caltanissetta Compares to Other Months

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

This table compares monthly weather conditions in Caltanissetta, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	34 mm (1.4 inches)	75%	moderate
February Weather	8°C (47°F)	52 mm (2.1 inches)	71%	moderate
March Weather	10°C (49°F)	58 mm (2.3 inches)	71%	high
April Weather	13°C (55°F)	44 mm (1.7 inches)	74%	very high
May Weather	17°C (63°F)	28 mm (1.1 inches)	73%	very high
June Weather	23°C (73°F)	27 mm (1.0 inches)	69%	extreme
July Weather	25°C (78°F)	5 mm (0.2 inches)	67%	extreme
August Weather	26°C (78°F)	16 mm (0.6 inches)	66%	very high
September Weather	22°C (72°F)	36 mm (1.4 inches)	71%	very high
October Weather	17°C (63°F)	96 mm (3.8 inches)	73%	high
November Weather	13°C (55°F)	107 mm (4.2 inches)	74%	moderate
December Weather	9°C (48°F)	51 mm (2.0 inches)	75%	moderate