nomadseason

September Weather in San Matteo, Italy

Last updated: August 23, 2025

In September, the average temperature in San Matteo, Italy is a pleasant 21°C (70°F). Expect minimums of around 8°C (47°F) and maximums reaching up to 34°C (93°F). Be prepared for 114 mm (4.5 in) of precipitation over approximately 11 days, with an average humidity of 66% making the air feel quite comfortable.

September Temperature in San Matteo

In September in San Matteo, the average temperature is 21°C (70°F). Maximums can reach 34°C (93°F), and minimums can be as low as 8°C (47°F). This climate makes San Matteo an ideal destination for travelers seeking pleasant weather and a mix of warm and cooler days.

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

The chart illustrates September temperature patterns in San Matteo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Matteo, September typically has an average temperature of 21°C (70°F), with highs reaching up to 34°C (93°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec384450586676797970605041
Data source: Temperature data for San Matteo generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in San Matteo

In San Matteo in September, the total precipitation amount is 114 mm (4.5 in) spread over 11 days.

September Precipitation Trends in San Matteo

The chart displays monthly precipitation patterns in San Matteo, 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 Matteo, September typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec225550781176692851147211573
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in San Matteo

In San Matteo in September humidity is 66%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, making it comfortable for leisurely strolls but slightly sticky for longer excursions.

September Average Humidity in San Matteo

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

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

Maximum UV Index Levels in San Matteo for September

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

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

This table compares monthly weather conditions in San Matteo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (39°F)22 mm (0.9 inches)87%low
February Weather7°C (45°F)55 mm (2.2 inches)79%moderate
March Weather10°C (50°F)50 mm (2.0 inches)69%moderate
April Weather14°C (58°F)78 mm (3.1 inches)71%high
May Weather19°C (66°F)117 mm (4.6 inches)70%very high
June Weather24°C (76°F)66 mm (2.6 inches)65%very high
July Weather26°C (79°F)92 mm (3.6 inches)61%very high
August Weather26°C (79°F)85 mm (3.3 inches)54%very high
September Weather21°C (70°F)114 mm (4.5 inches)66%high
October Weather15°C (60°F)72 mm (2.8 inches)83%moderate
November Weather10°C (51°F)115 mm (4.5 inches)88%moderate
December Weather5°C (41°F)73 mm (2.9 inches)85%low

Compare San Matteo's Climate with Cities Worldwide