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September Weather in Acquaviva d'Isernia, Italy

Last updated: August 23, 2025

In September, the average temperature in Acquaviva d'Isernia, Italy hovers around 16°C (61°F). Expect minimums to drop to 3°C (38°F), while the maximum can reach a warm 28°C (82°F). Prepare for some rain, as precipitation averages 70 mm (2.8 in) over 11 days, contributing to an average humidity of 65%.

September Temperature in Acquaviva d'Isernia

In September in Acquaviva d'Isernia, the average temperature is 16°C (61°F). Maximums can reach 28°C (82°F), while minimums can dip as low as 3°C (38°F). This makes it an ideal time for travelers to enjoy a variety of outdoor activities, perfect for layering clothing.

September Weather in Acquaviva d'Isernia: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Acquaviva d'Isernia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Acquaviva d'Isernia, September typically has an average temperature of 16°C (61°F), with highs reaching up to 28°C (82°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec354041485564686961534639
Data source: Temperature data for Acquaviva d'Isernia 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 Acquaviva d'Isernia

In Acquaviva d'Isernia in September, the precipitation amount is 70 mm (2.8 in) distributed over 11 days.

September Precipitation Trends in Acquaviva d'Isernia

The chart displays monthly precipitation patterns in Acquaviva d'Isernia, 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 Acquaviva d'Isernia, September typically receives around 70 mm (2.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec879496851146661487095166116
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Acquaviva d'Isernia

In Acquaviva d'Isernia in September, humidity is 65%. With an average temperature of 16°C (61°F), this humidity feels like a gentle warmth enveloping you, making it ideal for exploring the sights without overwhelming discomfort.

September Average Humidity in Acquaviva d'Isernia

This chart illustrates the average monthly humidity levels in Acquaviva d'Isernia, 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 Acquaviva d'Isernia 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 Acquaviva d'Isernia

In Acquaviva d'Isernia 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 Acquaviva d'Isernia.

Maximum UV Index Levels in Acquaviva d'Isernia for September

The chart shows the monthly maximum UV Index (UVI) for Acquaviva d'Isernia 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 Acquaviva d'Isernia typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098642
Data source: Acquaviva d'Isernia 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 Acquaviva d'Isernia Compares to Other Months

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

This table compares monthly weather conditions in Acquaviva d'Isernia, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)87 mm (3.4 inches)84%moderate
February Weather4°C (40°F)94 mm (3.7 inches)76%moderate
March Weather5°C (41°F)96 mm (3.8 inches)69%high
April Weather9°C (48°F)85 mm (3.4 inches)70%very high
May Weather13°C (55°F)114 mm (4.5 inches)70%very high
June Weather18°C (64°F)66 mm (2.6 inches)61%very high
July Weather20°C (68°F)61 mm (2.4 inches)57%very high
August Weather21°C (70°F)48 mm (1.9 inches)53%very high
September Weather16°C (61°F)70 mm (2.8 inches)65%very high
October Weather12°C (53°F)95 mm (3.7 inches)75%high
November Weather8°C (47°F)166 mm (6.5 inches)81%moderate
December Weather4°C (39°F)116 mm (4.5 inches)84%low

Compare Acquaviva d'Isernia's Climate with Cities Worldwide