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September Weather in Castelletto Stura, Italy

Last updated: August 23, 2025

In September, the average temperature in Castelletto Stura, Italy hovers around 18°C (65°F), with lows reaching 5°C (41°F) and highs soaring to 28°C (82°F). Expect 98 mm (3.9 in) of precipitation spread over about 12 days, contributing to an average humidity of 74%. Embrace the mild climate as you explore this beautiful destination!

September Temperature in Castelletto Stura

In September in Castelletto Stura, the average temperature is 18°C (65°F). Maximum temperatures can reach 28°C (82°F), while minimums can drop as low as 5°C (41°F). This moderate climate makes Castelletto Stura an ideal destination for travelers looking to enjoy a comfortable and pleasant experience.

September Weather in Castelletto Stura: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Castelletto Stura, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castelletto Stura, September typically has an average temperature of 18°C (65°F), with highs reaching up to 28°C (82°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec374246536069737264564637
Data source: Temperature data for Castelletto Stura 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 Castelletto Stura

In Castelletto Stura in September, the precipitation amount is 98 mm (3.9 in) over the course of 12 days.

September Precipitation Trends in Castelletto Stura

The chart displays monthly precipitation patterns in Castelletto Stura, 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 Castelletto Stura, September typically receives around 98 mm (3.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec626783128153116116699812019478
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Castelletto Stura

In Castelletto Stura in September humidity is 74%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace that can make even short walks feel laborious, leading travelers to seek shade and refreshment more often.

September Average Humidity in Castelletto Stura

This chart illustrates the average monthly humidity levels in Castelletto Stura, 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 Castelletto Stura is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%81%76%77%74%71%67%64%74%87%88%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Castelletto Stura

In Castelletto Stura 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 Castelletto Stura.

Maximum UV Index Levels in Castelletto Stura for September

The chart shows the monthly maximum UV Index (UVI) for Castelletto Stura 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 Castelletto Stura typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2467910997532
Data source: Castelletto Stura 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 Castelletto Stura Compares to Other Months

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

This table compares monthly weather conditions in Castelletto Stura, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)62 mm (2.4 inches)88%low
February Weather6°C (42°F)67 mm (2.7 inches)81%moderate
March Weather8°C (47°F)83 mm (3.3 inches)76%high
April Weather12°C (53°F)128 mm (5.0 inches)77%high
May Weather16°C (60°F)153 mm (6.0 inches)74%very high
June Weather20°C (69°F)116 mm (4.6 inches)71%very high
July Weather23°C (73°F)116 mm (4.6 inches)67%very high
August Weather22°C (73°F)69 mm (2.7 inches)64%very high
September Weather18°C (65°F)98 mm (3.9 inches)74%high
October Weather13°C (56°F)120 mm (4.7 inches)87%moderate
November Weather8°C (46°F)194 mm (7.6 inches)88%moderate
December Weather3°C (38°F)78 mm (3.1 inches)85%low

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