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September Weather in San Gregorio, Italy

Last updated: August 23, 2025

In September, the average temperature in San Gregorio, Italy hovers around 21°C (69°F). Expect a minimum of 8°C (47°F) and a maximum of 33°C (91°F). During this time, the region experiences 119 mm (4.7 in) of precipitation across 11 days, contributing to an average humidity of 66%.

September Temperature in San Gregorio

In September in San Gregorio, the average temperature is 21°C (69°F). Maximum temperatures can reach 33°C (91°F), while minimums can drop to as low as 8°C (47°F). This warm climate makes San Gregorio a great destination for travelers seeking pleasant weather and a variety of outdoor activities.

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

The chart illustrates September temperature patterns in San Gregorio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Gregorio, September typically has an average temperature of 21°C (69°F), with highs reaching up to 33°C (91°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec384449576575787869595041
Data source: Temperature data for San Gregorio 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 Gregorio

In San Gregorio in September, the total precipitation amount is 119 mm (4.7 in), which occurs over the course of 11 days.

September Precipitation Trends in San Gregorio

The chart displays monthly precipitation patterns in San Gregorio, 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 Gregorio, September typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec295854861277299901198613082
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Gregorio

In San Gregorio in September humidity is 66%. With an average temperature of 21°C (69°F), this humidity feels like a warm embrace, making it a bit sticky, but still comfortable for traveling as long as you stay hydrated and take breaks in the shade.

September Average Humidity in San Gregorio

This chart illustrates the average monthly humidity levels in San Gregorio, 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 Gregorio 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 San Gregorio

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

Maximum UV Index Levels in San Gregorio for September

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

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

This table compares monthly weather conditions in San Gregorio, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)29 mm (1.1 inches)87%low
February Weather7°C (44°F)58 mm (2.3 inches)79%moderate
March Weather10°C (49°F)54 mm (2.1 inches)69%moderate
April Weather14°C (58°F)86 mm (3.4 inches)71%high
May Weather18°C (65°F)127 mm (5.0 inches)70%very high
June Weather24°C (75°F)72 mm (2.8 inches)65%very high
July Weather25°C (78°F)99 mm (3.9 inches)61%very high
August Weather26°C (78°F)90 mm (3.6 inches)54%very high
September Weather21°C (69°F)119 mm (4.7 inches)66%high
October Weather15°C (60°F)86 mm (3.4 inches)83%moderate
November Weather10°C (51°F)130 mm (5.1 inches)88%moderate
December Weather5°C (41°F)82 mm (3.2 inches)85%low

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