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September Weather in Castelfondo, Italy

Last updated: August 23, 2025

In September, the average temperature in Castelfondo, Italy hovers around 11°C (52°F), with temperatures ranging from a chilly -7°C (20°F) to a warm 22°C (72°F). Expect about 134 mm (5.3 in) of precipitation over 18 days, contributing to a high average humidity of 83%. Plan your wardrobe accordingly to stay comfortable in this variable climate!

September Temperature in Castelfondo

In September in Castelfondo, the average temperature is 11°C (52°F), with maximums reaching up to 22°C (72°F) and minimums dropping as low as -7°C (20°F). This range makes it a great time for travelers to experience the diverse climate while enjoying outdoor activities and scenic sights.

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

The chart illustrates September temperature patterns in Castelfondo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castelfondo, September typically has an average temperature of 11°C (52°F), with highs reaching up to 22°C (72°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec202631394757585851443223
Data source: Temperature data for Castelfondo 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 Castelfondo

In Castelfondo in September, the precipitation amount is 134 mm (5.3 in) over the course of 18 days.

September Precipitation Trends in Castelfondo

The chart displays monthly precipitation patterns in Castelfondo, 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 Castelfondo, September typically receives around 134 mm (5.3 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec445264104149167229226134133143105
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Castelfondo

In Castelfondo in September humidity is 83%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that can make outdoor activities uncomfortable, often leading travelers to seek shelter indoors or to dress in layered clothing to stay warm while exploring the area.

September Average Humidity in Castelfondo

This chart illustrates the average monthly humidity levels in Castelfondo, 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 Castelfondo is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%89%86%83%78%79%82%80%83%90%89%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Castelfondo

In Castelfondo 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 Castelfondo.

Maximum UV Index Levels in Castelfondo for September

The chart shows the monthly maximum UV Index (UVI) for Castelfondo 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 Castelfondo typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24679101097532
Data source: Castelfondo 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 Castelfondo Compares to Other Months

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

This table compares monthly weather conditions in Castelfondo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (20°F)44 mm (1.7 inches)93%low
February Weather-3°C (26°F)52 mm (2.0 inches)89%moderate
March Weather0°C (32°F)63 mm (2.5 inches)86%high
April Weather4°C (40°F)104 mm (4.1 inches)83%high
May Weather8°C (47°F)149 mm (5.9 inches)78%very high
June Weather14°C (57°F)167 mm (6.6 inches)79%very high
July Weather15°C (58°F)229 mm (9.0 inches)82%very high
August Weather14°C (58°F)226 mm (8.9 inches)80%very high
September Weather11°C (52°F)134 mm (5.3 inches)83%high
October Weather7°C (44°F)133 mm (5.2 inches)90%moderate
November Weather0°C (32°F)143 mm (5.6 inches)89%moderate
December Weather-5°C (23°F)105 mm (4.1 inches)90%low

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