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September Weather in San Martino, Italy

Last updated: August 23, 2025

In San Martino, Italy, the average temperature in September is a pleasant 21°C (71°F), with fluctuations between a cool 8°C (46°F) and a warm 35°C (96°F). Expect 104 mm (4.1 in) of precipitation spread over 11 days, contributing to an average humidity level of 66%. Whether you're basking in the sun or enjoying a refreshing shower, this month offers a balanced climate for all!

September Temperature in San Martino

In September in San Martino, the average temperature is 21°C (71°F). Maximum temperatures can reach 35°C (96°F), while minimum temperatures can drop as low as 8°C (46°F). It's advisable to pack for both warm and cool conditions when traveling to San Martino this month.

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

The chart illustrates September temperature patterns in San Martino, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Martino, September typically has an average temperature of 21°C (71°F), with highs reaching up to 35°C (96°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec394550586677808070615142
Data source: Temperature data for San Martino 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 Martino

In San Martino in September, the precipitation amount is 104 mm (4.1 in) over the course of 11 days.

September Precipitation Trends in San Martino

The chart displays monthly precipitation patterns in San Martino, 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 Martino, September typically receives around 104 mm (4.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec206245631055782571056110062
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Martino

In San Martino in September, humidity is 66%. With an average temperature of 21°C (71°F), this humidity feels like a warm, sticky embrace that can make outdoor activities a bit taxing but also lends a vibrant energy to the atmosphere, ideal for those who appreciate a tropical ambiance while exploring.

September Average Humidity in San Martino

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

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

Maximum UV Index Levels in San Martino for September

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

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

This table compares monthly weather conditions in San Martino, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)20 mm (0.8 inches)87%low
February Weather7°C (45°F)62 mm (2.4 inches)79%moderate
March Weather10°C (50°F)45 mm (1.8 inches)69%moderate
April Weather14°C (58°F)63 mm (2.5 inches)71%high
May Weather19°C (67°F)105 mm (4.1 inches)70%very high
June Weather25°C (77°F)57 mm (2.3 inches)65%very high
July Weather27°C (80°F)82 mm (3.2 inches)61%very high
August Weather27°C (80°F)57 mm (2.3 inches)54%very high
September Weather21°C (71°F)104 mm (4.1 inches)66%high
October Weather16°C (61°F)61 mm (2.4 inches)83%moderate
November Weather11°C (52°F)100 mm (3.9 inches)88%moderate
December Weather5°C (42°F)62 mm (2.4 inches)85%low

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