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September Weather in Porto Viro, Italy

Last updated: August 23, 2025

In Porto Viro, Italy, the average temperature in September hovers around 22°C (71°F), with delightful highs of up to 29°C (85°F) and cozy lows dipping to 14°C (57°F). Expect about 121 mm (4.8 in) of precipitation spread over 10 days, accompanied by an average humidity level of 66%. Whether you're exploring or relaxing, this climate offers a pleasant backdrop for your adventures!

September Temperature in Porto Viro

In September in Porto Viro, the average temperature is 22°C (71°F). Maximums can reach 29°C (85°F), while minimums can be as low as 14°C (57°F). This pleasant climate makes Porto Viro an ideal destination for travelers seeking mild weather and outdoor activities.

September Weather in Porto Viro: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Porto Viro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Porto Viro, September typically has an average temperature of 22°C (71°F), with highs reaching up to 29°C (85°F) and lows dropping to around 14°C (57°F).
JanFebMarAprMayJunJulAugSepOctNovDec434650576574787971635546
Data source: Temperature data for Porto Viro 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 Porto Viro

In Porto Viro in September, the precipitation amount is 121 mm (4.8 in) spread over a period of 10 days.

September Precipitation Trends in Porto Viro

The chart displays monthly precipitation patterns in Porto Viro, 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 Porto Viro, September typically receives around 121 mm (4.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec29754969975073581217910481
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Porto Viro

In Porto Viro in September, humidity is 66%. With an average temperature of 22°C (71°F), this humidity feels like a warm blanket, making travel comfortable yet slightly sticky, necessitating frequent breaks to hydrate and seek shade.

September Average Humidity in Porto Viro

This chart illustrates the average monthly humidity levels in Porto Viro, 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 Porto Viro 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 Porto Viro

In Porto Viro 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 Porto Viro.

Maximum UV Index Levels in Porto Viro for September

The chart shows the monthly maximum UV Index (UVI) for Porto Viro 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 Porto Viro typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987532
Data source: Porto Viro 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 Porto Viro Compares to Other Months

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

This table compares monthly weather conditions in Porto Viro, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)29 mm (1.1 inches)87%low
February Weather8°C (46°F)75 mm (2.9 inches)79%moderate
March Weather10°C (50°F)49 mm (1.9 inches)69%moderate
April Weather14°C (57°F)69 mm (2.7 inches)71%high
May Weather18°C (65°F)96 mm (3.8 inches)70%very high
June Weather24°C (75°F)50 mm (2.0 inches)65%very high
July Weather26°C (78°F)73 mm (2.9 inches)61%very high
August Weather26°C (79°F)58 mm (2.3 inches)54%very high
September Weather22°C (71°F)121 mm (4.8 inches)66%high
October Weather17°C (63°F)79 mm (3.1 inches)83%moderate
November Weather13°C (55°F)104 mm (4.1 inches)88%moderate
December Weather8°C (47°F)81 mm (3.2 inches)85%low

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