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September Weather in Trebbio, Italy

Last updated: August 23, 2025

In September, the average temperature in Trebbio, Italy is a pleasant 18°C (64°F), with a minimum of 4°C (39°F) and a maximum reaching 31°C (88°F). While you enjoy the mild weather, be prepared for about 90 mm (3.5 in) of precipitation spread over 11 days. With an average humidity of 67%, it's a perfect time to experience the beauty of the region!

September Temperature in Trebbio

In September in Trebbio, the average temperature is 18°C (64°F). Maximums can reach 31°C (88°F), while minimums can be as low as 4°C (39°F). This range makes Trebbio a pleasant destination for travel, offering warm days and cool nights perfect for exploration.

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

The chart illustrates September temperature patterns in Trebbio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Trebbio, September typically has an average temperature of 18°C (64°F), with highs reaching up to 31°C (88°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec374144505868727364554840
Data source: Temperature data for Trebbio 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 Trebbio

In Trebbio in September, the total precipitation amounts to 90 mm (3.5 in) over the course of 11 days.

September Precipitation Trends in Trebbio

The chart displays monthly precipitation patterns in Trebbio, 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 Trebbio, September typically receives around 90 mm (3.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec737494831346672589076129104
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Trebbio

In Trebbio in September humidity is 67%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making travel quite comfortable but slightly sticky, encouraging lightweight clothing and the occasional refreshing break in the shade.

September Average Humidity in Trebbio

This chart illustrates the average monthly humidity levels in Trebbio, 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 Trebbio is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%78%69%71%71%63%59%54%67%79%84%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Trebbio

In Trebbio 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 Trebbio.

Maximum UV Index Levels in Trebbio for September

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

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

This table compares monthly weather conditions in Trebbio, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)73 mm (2.9 inches)85%low
February Weather5°C (42°F)74 mm (2.9 inches)78%moderate
March Weather6°C (44°F)94 mm (3.7 inches)69%high
April Weather10°C (51°F)83 mm (3.3 inches)71%high
May Weather15°C (59°F)134 mm (5.3 inches)71%very high
June Weather20°C (68°F)66 mm (2.6 inches)63%very high
July Weather22°C (72°F)72 mm (2.8 inches)59%very high
August Weather23°C (73°F)58 mm (2.3 inches)54%very high
September Weather18°C (64°F)90 mm (3.5 inches)67%high
October Weather13°C (55°F)76 mm (3.0 inches)78%moderate
November Weather9°C (49°F)129 mm (5.1 inches)84%moderate
December Weather5°C (41°F)104 mm (4.1 inches)86%low

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