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September Weather in Castel Bolognese, Italy

Last updated: August 23, 2025

In September, the average temperature in Castel Bolognese, Italy hovers around 20°C (68°F). While the mercury can dip to a chilly 6°C (42°F), it can also soar to a balmy 32°C (91°F). Expect about 90 mm (3.5 in) of precipitation spread over 10 days, and humidity levels around 66% create a lively, refreshing atmosphere.

September Temperature in Castel Bolognese

In September in Castel Bolognese, the average temperature is 20°C (68°F). The maximum can reach 32°C (91°F), and the minimum can be as low as 6°C (42°F). This variation in temperature makes Castel Bolognese an ideal destination for travelers seeking both warm and cooler experiences.

September Weather in Castel Bolognese: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Castel Bolognese, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castel Bolognese, September typically has an average temperature of 20°C (68°F), with highs reaching up to 32°C (91°F) and lows dropping to around 6°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec394548556373777768595042
Data source: Temperature data for Castel Bolognese 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 Castel Bolognese

In Castel Bolognese in September, the precipitation amount is 90 mm (3.5 in) over the course of 10 days.

September Precipitation Trends in Castel Bolognese

The chart displays monthly precipitation patterns in Castel Bolognese, 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 Castel Bolognese, September typically receives around 90 mm (3.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec34845664116456859907812377
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Castel Bolognese

In Castel Bolognese in September, humidity is 66%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making outdoor activities enjoyable but potentially a bit sticky, so travelers should stay hydrated and consider light, breathable clothing for comfort.

September Average Humidity in Castel Bolognese

This chart illustrates the average monthly humidity levels in Castel Bolognese, 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 Castel Bolognese is approximately 66%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%79%69%71%70%65%61%54%66%83%88%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Castel Bolognese

In Castel Bolognese 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 Castel Bolognese.

Maximum UV Index Levels in Castel Bolognese for September

The chart shows the monthly maximum UV Index (UVI) for Castel Bolognese 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 Castel Bolognese typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789987532
Data source: Castel Bolognese 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 Castel Bolognese Compares to Other Months

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

This table compares monthly weather conditions in Castel Bolognese, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)34 mm (1.3 inches)87%low
February Weather7°C (45°F)84 mm (3.3 inches)79%moderate
March Weather9°C (48°F)56 mm (2.2 inches)69%moderate
April Weather13°C (56°F)64 mm (2.5 inches)71%high
May Weather17°C (64°F)116 mm (4.5 inches)70%very high
June Weather23°C (74°F)45 mm (1.8 inches)65%very high
July Weather25°C (77°F)68 mm (2.7 inches)61%very high
August Weather25°C (78°F)59 mm (2.3 inches)54%very high
September Weather20°C (68°F)90 mm (3.5 inches)66%high
October Weather15°C (59°F)78 mm (3.1 inches)83%moderate
November Weather10°C (50°F)123 mm (4.9 inches)88%moderate
December Weather6°C (42°F)77 mm (3.0 inches)85%low

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