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September Weather in San Giovanni, Italy

Last updated: August 23, 2025

In September, the average temperature in San Giovanni, Italy hovers around 8°C (46°F). Expect significant variability, with temperatures dipping as low as -10°C (14°F) and rising to a pleasant 21°C (71°F). This month brings an estimated 124 mm (4.9 in) of precipitation, spread over 13 days, leading to an average humidity of 83%. Be prepared for a mix of cool and wet days!

September Temperature in San Giovanni

In September in San Giovanni, the average temperature is 8°C (46°F). Maximums can reach up to 21°C (71°F), while minimums can drop as low as -10°C (14°F). Be prepared for a wide range of temperatures during your travels!

September Weather in San Giovanni: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in San Giovanni, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Giovanni, September typically has an average temperature of 8°C (46°F), with highs reaching up to 21°C (71°F) and lows dropping to around -10°C (14°F).
JanFebMarAprMayJunJulAugSepOctNovDec182327334051535446382919
Data source: Temperature data for San Giovanni 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 San Giovanni

In San Giovanni in September, the total precipitation amount is 124 mm (4.9 in) over a span of 13 days.

September Precipitation Trends in San Giovanni

The chart displays monthly precipitation patterns in San Giovanni, 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 San Giovanni, September typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec82678482145145171202124115114124
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Giovanni

In San Giovanni in September, humidity is 83%. With an average temperature of 8°C (46°F), this humidity feels like a damp chill that seeps into your bones, making even short outings feel quite uncomfortable and prompting travelers to bundle up and seek shelter more frequently.

September Average Humidity in San Giovanni

This chart illustrates the average monthly humidity levels in San Giovanni, 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 San Giovanni is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%89%86%83%78%79%82%80%83%90%89%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Giovanni

In San Giovanni 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 San Giovanni.

Maximum UV Index Levels in San Giovanni for September

The chart shows the monthly maximum UV Index (UVI) for San Giovanni 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 San Giovanni typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24789101097532
Data source: San Giovanni 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 San Giovanni Compares to Other Months

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

This table compares monthly weather conditions in San Giovanni, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)82 mm (3.2 inches)93%low
February Weather-5°C (23°F)67 mm (2.6 inches)89%moderate
March Weather-3°C (27°F)84 mm (3.3 inches)86%high
April Weather1°C (33°F)82 mm (3.2 inches)83%very high
May Weather5°C (41°F)145 mm (5.7 inches)78%very high
June Weather11°C (52°F)145 mm (5.7 inches)79%very high
July Weather12°C (53°F)171 mm (6.7 inches)82%very high
August Weather12°C (54°F)202 mm (7.9 inches)80%very high
September Weather8°C (46°F)124 mm (4.9 inches)83%high
October Weather3°C (38°F)115 mm (4.5 inches)90%moderate
November Weather-2°C (29°F)114 mm (4.5 inches)89%moderate
December Weather-7°C (20°F)124 mm (4.9 inches)90%low

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