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September Weather in Tres, Italy

Last updated: August 23, 2025

In September, the average temperature in Tres, Italy hovers around 12°C (55°F), making it a mild but sometimes unpredictable time of year. You can expect temperatures to range from a chilly 0°C (32°F) up to a comfortable 23°C (73°F). With 129 mm (5.1 in) of precipitation spread over 17 days, it's wise to pack an umbrella. The air is often quite humid, with an average humidity level of 83%, adding to the unique climate experience of this captivating destination.

September Temperature in Tres

In September in Tres, the average temperature is 12°C (55°F). Maximum temperatures can reach 23°C (73°F), while the minimum can drop to as low as 0°C (32°F). It's a great time to visit Tres if you enjoy mild weather and the possibility of experiencing both warmer and cooler conditions.

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

The chart illustrates September temperature patterns in Tres, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tres, September typically has an average temperature of 12°C (55°F), with highs reaching up to 23°C (73°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec222935425059616154473626
Data source: Temperature data for Tres 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 Tres

In Tres in September, the total precipitation amount reaches 129 mm (5.1 in), occurring over a span of 17 days.

September Precipitation Trends in Tres

The chart displays monthly precipitation patterns in Tres, 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 Tres, September typically receives around 129 mm (5.1 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec344974124176179270238129138162104
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Tres

In Tres in September humidity is 83%. With an average temperature of 12°C (55°F), this humidity feels like a cool, damp embrace that makes exploring the area both refreshing and slightly uncomfortable, requiring travelers to dress in layers and stay hydrated.

September Average Humidity in Tres

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

In Tres 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 Tres.

Maximum UV Index Levels in Tres for September

The chart shows the monthly maximum UV Index (UVI) for Tres 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 Tres typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24679101097532
Data source: Tres 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 Tres Compares to Other Months

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

This table compares monthly weather conditions in Tres, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)34 mm (1.3 inches)93%low
February Weather-1°C (30°F)49 mm (1.9 inches)89%moderate
March Weather2°C (35°F)74 mm (2.9 inches)86%high
April Weather6°C (42°F)124 mm (4.9 inches)83%high
May Weather10°C (50°F)176 mm (6.9 inches)78%very high
June Weather15°C (59°F)179 mm (7.0 inches)79%very high
July Weather16°C (61°F)270 mm (10.6 inches)82%very high
August Weather16°C (61°F)238 mm (9.4 inches)80%very high
September Weather12°C (55°F)129 mm (5.1 inches)83%high
October Weather8°C (47°F)138 mm (5.4 inches)90%moderate
November Weather2°C (36°F)162 mm (6.4 inches)89%moderate
December Weather-3°C (26°F)104 mm (4.1 inches)90%low

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