September Weather in Castelletto Cervo, Italy

Last updated: August 23, 2025

In September, the average temperature in Castelletto Cervo, Italy hovers around 19°C (66°F). Temperatures can dip as low as 5°C (42°F), while reaching a maximum of 29°C (85°F). Expect around 113 mm (4.5 in) of precipitation over 12 days, contributing to an average humidity of 74%. Stay prepared for a mix of mild days and occasional rain!

September Temperature in Castelletto Cervo

In September in Castelletto Cervo, the average temperature is a comfortable 19°C (66°F). Maximum temperatures can reach a warm 29°C (85°F), while minimums can drop to a cool 5°C (42°F). This makes it a great time for travelers to enjoy a mix of pleasant weather and mild evenings.

September Weather in Castelletto Cervo: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Castelletto Cervo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castelletto Cervo, September typically has an average temperature of 19°C (66°F), with highs reaching up to 29°C (85°F) and lows dropping to around 5°C (42°F).

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

September Precipitation in Castelletto Cervo

In Castelletto Cervo in September, the precipitation amount is 113 mm (4.5 in) over the course of 12 days.

September Precipitation Trends in Castelletto Cervo

The chart displays monthly precipitation patterns in Castelletto Cervo, 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 Castelletto Cervo, September typically receives around 113 mm (4.5 inches) of precipitation spread over approximately 12 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 Castelletto Cervo

In Castelletto Cervo in September humidity is 74%. With an average temperature of 19°C (66°F), this humidity feels like a warm, enveloping blanket, making it ideal for leisurely outdoor exploration but potentially heavy for those not accustomed to tropical conditions.

September Average Humidity in Castelletto Cervo

This chart illustrates the average monthly humidity levels in Castelletto Cervo, 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 Castelletto Cervo 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 Castelletto Cervo

In Castelletto Cervo in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Castelletto Cervo, you can refer to this Hourly UV Index in Castelletto Cervo.

Maximum UV Index Levels in Castelletto Cervo for September

The chart shows the monthly maximum UV Index (UVI) for Castelletto Cervo 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 Castelletto Cervo typically reaches 6, which falls under the high exposure category.

Data source: Castelletto Cervo 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 Castelletto Cervo Compares to Other Months

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

This table compares monthly weather conditions in Castelletto Cervo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	67 mm (2.6 inches)	88%	low
February Weather	6°C (43°F)	54 mm (2.1 inches)	81%	moderate
March Weather	9°C (48°F)	99 mm (3.9 inches)	76%	moderate
April Weather	13°C (55°F)	132 mm (5.2 inches)	77%	high
May Weather	17°C (62°F)	162 mm (6.4 inches)	74%	very high
June Weather	21°C (71°F)	139 mm (5.5 inches)	71%	very high
July Weather	23°C (74°F)	120 mm (4.7 inches)	67%	very high
August Weather	23°C (74°F)	93 mm (3.7 inches)	64%	very high
September Weather	19°C (66°F)	113 mm (4.5 inches)	74%	high
October Weather	14°C (57°F)	226 mm (8.9 inches)	87%	moderate
November Weather	8°C (47°F)	193 mm (7.6 inches)	88%	moderate
December Weather	4°C (39°F)	87 mm (3.4 inches)	85%	low