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September Weather in Agosta, Italy

Last updated: August 23, 2025

In Agosta, Italy, the average temperature in September hovers around 18°C (65°F). You can expect temperatures to range from a cool 5°C (42°F) to a warm 30°C (86°F). Be prepared for around 121 mm (4.8 in) of precipitation spread across 10 days, contributing to an average humidity of 65%.

September Temperature in Agosta

In September in Agosta, the average temperature is 18°C (65°F). The maximum can reach 30°C (86°F), and the minimum can be as low as 5°C (42°F). This mild climate makes Agosta an ideal destination for travelers seeking enjoyable outdoor activities and comfortable sightseeing experiences.

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

The chart illustrates September temperature patterns in Agosta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Agosta, September typically has an average temperature of 18°C (65°F), with highs reaching up to 30°C (86°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec404446525968737565575042
Data source: Temperature data for Agosta 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 Agosta

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

September Precipitation Trends in Agosta

The chart displays monthly precipitation patterns in Agosta, 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 Agosta, September typically receives around 121 mm (4.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec819811495121612947121113204190
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Agosta

In Agosta in September, humidity is 65%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace that clings to your skin, making you feel slightly sticky as you explore. It's comfortable enough for sightseeing, but breathable enough to enjoy a leisurely stroll, though you might find yourself seeking shade during the warmest parts of the day.

September Average Humidity in Agosta

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

In Agosta 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 Agosta.

Maximum UV Index Levels in Agosta for September

The chart shows the monthly maximum UV Index (UVI) for Agosta 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 Agosta typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34679101098642
Data source: Agosta 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 Agosta Compares to Other Months

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

This table compares monthly weather conditions in Agosta, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)81 mm (3.2 inches)84%moderate
February Weather7°C (44°F)98 mm (3.9 inches)76%moderate
March Weather8°C (46°F)114 mm (4.5 inches)69%high
April Weather11°C (52°F)95 mm (3.7 inches)70%high
May Weather15°C (59°F)121 mm (4.8 inches)70%very high
June Weather20°C (68°F)61 mm (2.4 inches)61%very high
July Weather23°C (74°F)29 mm (1.1 inches)57%very high
August Weather24°C (75°F)46 mm (1.8 inches)53%very high
September Weather18°C (65°F)121 mm (4.8 inches)65%very high
October Weather14°C (57°F)113 mm (4.5 inches)75%high
November Weather10°C (50°F)204 mm (8.0 inches)81%moderate
December Weather6°C (43°F)190 mm (7.5 inches)84%low

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