September Weather in Colonno, Italy

Last updated: August 23, 2025

In September, the average temperature in Colonno, Italy hovers around 16°C (61°F), with lows dipping to 4°C (39°F) and highs reaching up to 25°C (78°F). Expect plenty of precipitation, as the area sees about 161 mm (6.3 in) spread over 14 days, while the average humidity remains a comfortable 74%.

September Temperature in Colonno

In September in Colonno, the average temperature is 16°C (61°F). Maximums can reach 25°C (78°F) and minimums can dip as low as 4°C (39°F). This pleasant weather makes it an ideal time for outdoor activities and exploration in Colonno.

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

The chart illustrates September temperature patterns in Colonno, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Colonno, September typically has an average temperature of 16°C (61°F), with highs reaching up to 25°C (78°F) and lows dropping to around 4°C (39°F).

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

September Precipitation in Colonno

In Colonno in September, the total precipitation amount is 161 mm (6.3 in) occurring over a span of 14 days.

September Precipitation Trends in Colonno

The chart displays monthly precipitation patterns in Colonno, 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 Colonno, September typically receives around 161 mm (6.3 inches) of precipitation spread over approximately 14 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 Colonno

In Colonno in September humidity is 74%. With an average temperature of 16°C (61°F), this humidity feels like a damp blanket wrapping around you, making traveling quite uncomfortable as the air feels thick and muggy, potentially leading to fatigue and a longing for a cool breeze.

September Average Humidity in Colonno

This chart illustrates the average monthly humidity levels in Colonno, 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 Colonno 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 Colonno

In Colonno 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 Colonno.

Maximum UV Index Levels in Colonno for September

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

Data source: Colonno 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 Colonno Compares to Other Months

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

This table compares monthly weather conditions in Colonno, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (35°F)	48 mm (1.9 inches)	88%	low
February Weather	3°C (39°F)	52 mm (2.0 inches)	81%	moderate
March Weather	6°C (43°F)	105 mm (4.1 inches)	76%	high
April Weather	10°C (50°F)	162 mm (6.4 inches)	77%	high
May Weather	14°C (57°F)	202 mm (8.0 inches)	74%	very high
June Weather	18°C (65°F)	219 mm (8.6 inches)	71%	very high
July Weather	20°C (68°F)	187 mm (7.4 inches)	67%	very high
August Weather	20°C (68°F)	222 mm (8.7 inches)	64%	very high
September Weather	16°C (61°F)	161 mm (6.3 inches)	74%	high
October Weather	11°C (53°F)	223 mm (8.8 inches)	87%	moderate
November Weather	7°C (44°F)	177 mm (7.0 inches)	88%	moderate
December Weather	2°C (37°F)	108 mm (4.2 inches)	85%	low