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September Weather in Castana, Italy

Last updated: August 23, 2025

In September, the average temperature in Castana, Italy is a pleasant 20°C (68°F). Expect a comfortable range with lows of 7°C (44°F) and highs reaching up to 31°C (88°F). Be prepared for some rain, as 83 mm (3.3 in) of precipitation is likely over 11 days. With an average humidity of 74%, you’ll feel that refreshing, tropical embrace throughout the month!

September Temperature in Castana

In September in Castana, the average temperature is 20°C (68°F). Maximum temperatures can reach 31°C (88°F), while minimums can drop to as low as 7°C (44°F). This diverse range makes it important for travelers to pack layers to stay comfortable throughout the day.

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

The chart illustrates September temperature patterns in Castana, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castana, September typically has an average temperature of 20°C (68°F), with highs reaching up to 31°C (88°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec384348556373767667584839
Data source: Temperature data for Castana 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 Castana

In Castana in September, the precipitation amount is 83 mm (3.3 in) over the course of 11 days.

September Precipitation Trends in Castana

The chart displays monthly precipitation patterns in Castana, 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 Castana, September typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec35515967114647262838213593
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Castana

In Castana in September humidity is 74%. With an average temperature of 20°C (68°F), this humidity feels like a warm, sticky embrace that can make outdoor activities feel exhausting, prompting travelers to seek shade and hydration more often.

September Average Humidity in Castana

This chart illustrates the average monthly humidity levels in Castana, 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 Castana 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 Castana

In Castana in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Castana, you can refer to this Hourly UV Index in Castana.

Maximum UV Index Levels in Castana for September

The chart shows the monthly maximum UV Index (UVI) for Castana 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 Castana typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986532
Data source: Castana 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 Castana Compares to Other Months

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

This table compares monthly weather conditions in Castana, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)35 mm (1.4 inches)88%low
February Weather6°C (43°F)51 mm (2.0 inches)81%moderate
March Weather9°C (48°F)59 mm (2.3 inches)76%moderate
April Weather13°C (56°F)67 mm (2.7 inches)77%high
May Weather17°C (63°F)113 mm (4.5 inches)74%very high
June Weather23°C (73°F)64 mm (2.5 inches)71%very high
July Weather25°C (77°F)72 mm (2.8 inches)67%very high
August Weather25°C (77°F)62 mm (2.4 inches)64%very high
September Weather20°C (68°F)83 mm (3.3 inches)74%high
October Weather14°C (58°F)82 mm (3.2 inches)87%moderate
November Weather9°C (48°F)135 mm (5.3 inches)88%moderate
December Weather4°C (39°F)93 mm (3.7 inches)85%low

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