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September Weather in Ventotene, Italy

Last updated: August 23, 2025

In September, the average temperature in Ventotene, Italy hovers around 24°C (75°F). Expect a comfortable range, with minimums dipping to 16°C (61°F) and maximums reaching up to 27°C (82°F). Be prepared for some rain, as the area sees about 74 mm (2.9 in) of precipitation over approximately 7 days. With an average humidity of 65%, you might want to bring that umbrella along!

September Temperature in Ventotene

In September in Ventotene, the average temperature is 24°C (75°F). Maximums can reach 27°C (82°F), while minimums can dip as low as 16°C (61°F). This pleasant weather makes it an ideal destination for travel during this time.

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

The chart illustrates September temperature patterns in Ventotene, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ventotene, September typically has an average temperature of 24°C (75°F), with highs reaching up to 27°C (82°F) and lows dropping to around 16°C (61°F).
JanFebMarAprMayJunJulAugSepOctNovDec545556596573787975696358
Data source: Temperature data for Ventotene 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 Ventotene

In Ventotene in September, the precipitation amount is 74 mm (2.9 in) over a period of 7 days.

September Precipitation Trends in Ventotene

The chart displays monthly precipitation patterns in Ventotene, 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 Ventotene, September typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec957562374411877474221139
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ventotene

In Ventotene in September humidity is 65%. With average temperature 24°C (75°F), this humidity feels like a warm blanket enveloping you, making outdoor activities a bit sticky but still enjoyable for exploring sights and sounds.

September Average Humidity in Ventotene

This chart illustrates the average monthly humidity levels in Ventotene, 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 Ventotene is approximately 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%76%69%70%70%61%57%53%65%75%82%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ventotene

In Ventotene in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Ventotene.

Maximum UV Index Levels in Ventotene for September

The chart shows the monthly maximum UV Index (UVI) for Ventotene 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 Ventotene typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34579101098642
Data source: Ventotene 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 Ventotene Compares to Other Months

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

This table compares monthly weather conditions in Ventotene, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)95 mm (3.8 inches)84%moderate
February Weather13°C (55°F)75 mm (3.0 inches)76%moderate
March Weather13°C (56°F)62 mm (2.4 inches)69%moderate
April Weather15°C (59°F)37 mm (1.5 inches)70%high
May Weather18°C (65°F)43 mm (1.7 inches)70%very high
June Weather23°C (73°F)11 mm (0.4 inches)61%very high
July Weather25°C (78°F)8 mm (0.3 inches)57%very high
August Weather26°C (80°F)7 mm (0.3 inches)53%very high
September Weather24°C (75°F)74 mm (2.9 inches)65%very high
October Weather20°C (69°F)74 mm (2.9 inches)75%high
November Weather17°C (64°F)220 mm (8.7 inches)81%moderate
December Weather14°C (58°F)139 mm (5.5 inches)84%low

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