September Weather in Silea, Italy

Last updated: August 23, 2025

In September, the average temperature in Silea, Italy is a comfortable 20°C (68°F). Expect a minimum of 8°C (47°F) and a maximum of 32°C (90°F), making the weather pleasantly varied. Be prepared for 134 mm (5.3 in) of precipitation over approximately 11 days, and enjoy an average humidity level of 66% that adds a touch of warmth to the air.

September Temperature in Silea

In September in Silea, the average temperature is 20°C (68°F). Maximums can reach 32°C (90°F) while minimums can drop to as low as 8°C (47°F). This makes Silea a favorable destination for travelers seeking mild weather with the potential for warmer days.

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

The chart illustrates September temperature patterns in Silea, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Silea, September typically has an average temperature of 20°C (68°F), with highs reaching up to 32°C (90°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec384348566473767768595041
Data source: Temperature data for Silea 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 Silea

In Silea in September, the precipitation amount is 134 mm (5.3 in) spread over 11 days.

September Precipitation Trends in Silea

The chart displays monthly precipitation patterns in Silea, 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 Silea, September typically receives around 134 mm (5.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec426563120146927782134112165120
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Silea

In Silea 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 Silea

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

In Silea 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 Silea, you can refer to this Hourly UV Index in Silea.

Maximum UV Index Levels in Silea for September

The chart shows the monthly maximum UV Index (UVI) for Silea 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 Silea typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986432
Data source: Silea 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 Silea Compares to Other Months

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

This table compares monthly weather conditions in Silea, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)42 mm (1.7 inches)87%low
February Weather6°C (44°F)65 mm (2.5 inches)79%moderate
March Weather9°C (48°F)63 mm (2.5 inches)69%moderate
April Weather13°C (56°F)120 mm (4.7 inches)71%high
May Weather18°C (64°F)146 mm (5.7 inches)70%very high
June Weather23°C (73°F)92 mm (3.6 inches)65%very high
July Weather24°C (76°F)77 mm (3.0 inches)61%very high
August Weather25°C (77°F)82 mm (3.2 inches)54%very high
September Weather20°C (68°F)134 mm (5.3 inches)66%high
October Weather15°C (59°F)112 mm (4.4 inches)83%moderate
November Weather10°C (50°F)165 mm (6.5 inches)88%moderate
December Weather5°C (41°F)120 mm (4.7 inches)85%low

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