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September Weather in Ardenno, Italy

Last updated: August 23, 2025

In Ardenno, Italy, the average temperature in September hovers around 10°C (51°F), with a minimum dipping as low as -4°C (26°F) and a maximum soaring to 21°C (70°F). Expect a fairly wet month with 133 mm (5.2 in) of precipitation spread across 15 days, contributing to the average humidity level of a muggy 83%. Stay prepared for a mix of cool and damp days!

September Temperature in Ardenno

In September in Ardenno, the average temperature is 10°C (51°F). Maximums can reach 21°C (70°F) and minimums can be as low as -4°C (26°F). This variety in temperatures makes it essential to pack layers when traveling to Ardenno during this month.

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

The chart illustrates September temperature patterns in Ardenno, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ardenno, September typically has an average temperature of 10°C (51°F), with highs reaching up to 21°C (70°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec192631384656585751433223
Data source: Temperature data for Ardenno generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Ardenno

In Ardenno in September, the total precipitation amount is 133 mm (5.2 in) spread over a duration of 15 days.

September Precipitation Trends in Ardenno

The chart displays monthly precipitation patterns in Ardenno, 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 Ardenno, September typically receives around 133 mm (5.2 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec505187113161147155177133160138111
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ardenno

In Ardenno in September, humidity is 83%. With an average temperature of 10°C (51°F), this humidity feels like a chilly dampness that permeates your clothes, making it essential to dress in layers for travel, as the cool air combined with the high humidity can create an uncomfortable and bone-chilling atmosphere.

September Average Humidity in Ardenno

This chart illustrates the average monthly humidity levels in Ardenno, 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 Ardenno is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%89%87%84%80%82%83%80%83%90%89%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ardenno

In Ardenno 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 Ardenno.

Maximum UV Index Levels in Ardenno for September

The chart shows the monthly maximum UV Index (UVI) for Ardenno 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 Ardenno typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24689101097632
Data source: Ardenno 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 Ardenno Compares to Other Months

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

This table compares monthly weather conditions in Ardenno, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (19°F)50 mm (2.0 inches)92%low
February Weather-3°C (26°F)51 mm (2.0 inches)89%moderate
March Weather0°C (31°F)87 mm (3.4 inches)87%high
April Weather3°C (39°F)113 mm (4.5 inches)84%very high
May Weather8°C (46°F)161 mm (6.3 inches)80%very high
June Weather13°C (56°F)147 mm (5.8 inches)82%very high
July Weather14°C (58°F)155 mm (6.1 inches)83%very high
August Weather14°C (58°F)177 mm (7.0 inches)80%very high
September Weather10°C (51°F)133 mm (5.2 inches)83%high
October Weather6°C (43°F)160 mm (6.3 inches)90%high
November Weather0°C (33°F)138 mm (5.4 inches)88%moderate
December Weather-5°C (23°F)111 mm (4.4 inches)90%low

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