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September Weather in Oltressenda Alta, Italy

Last updated: August 23, 2025

In Oltressenda Alta, Italy, the average temperature in September is a mild 12°C (54°F). While you might experience minimums dipping to -1°C (30°F), the mercury can rise as high as 22°C (72°F). Expect an average precipitation of 179 mm (7.1 in) over 19 days, coupled with a humidity level of 74% that adds a touch of dampness to the air.

September Temperature in Oltressenda Alta

In September in Oltressenda Alta, the average temperature is 12°C (54°F). The maximum can reach 22°C (72°F), and the minimum can be as low as -1°C (30°F). Travelers should be prepared for a range of temperatures, layering clothing to stay comfortable throughout the day and night.

September Weather in Oltressenda Alta: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Oltressenda Alta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oltressenda Alta, September typically has an average temperature of 12°C (54°F), with highs reaching up to 22°C (72°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec243035425059616054463728
Data source: Temperature data for Oltressenda Alta 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 Oltressenda Alta

In Oltressenda Alta in September, the precipitation amount is 179 mm (7.1 in) occurring over 19 days.

September Precipitation Trends in Oltressenda Alta

The chart displays monthly precipitation patterns in Oltressenda Alta, 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 Oltressenda Alta, September typically receives around 179 mm (7.1 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec4358111165230217229260179194182118
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Oltressenda Alta

In Oltressenda Alta in September, humidity is 74%. With an average temperature of 12°C (54°F), this humidity feels like a chilly embrace that can dampen your travel experience, making it essential to dress in layers and prepare for an unexpected drizzle while exploring the sights.

September Average Humidity in Oltressenda Alta

This chart illustrates the average monthly humidity levels in Oltressenda Alta, 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 Oltressenda Alta is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%81%76%77%74%71%67%64%74%87%88%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Oltressenda Alta

In Oltressenda Alta 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 Oltressenda Alta.

Maximum UV Index Levels in Oltressenda Alta for September

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

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

This table compares monthly weather conditions in Oltressenda Alta, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)43 mm (1.7 inches)88%low
February Weather-1°C (31°F)58 mm (2.3 inches)81%moderate
March Weather2°C (35°F)111 mm (4.4 inches)76%high
April Weather6°C (43°F)165 mm (6.5 inches)77%high
May Weather10°C (50°F)230 mm (9.1 inches)74%very high
June Weather15°C (59°F)217 mm (8.5 inches)71%very high
July Weather16°C (61°F)229 mm (9.0 inches)67%very high
August Weather16°C (61°F)260 mm (10.2 inches)64%very high
September Weather12°C (54°F)179 mm (7.1 inches)74%high
October Weather8°C (46°F)194 mm (7.6 inches)87%moderate
November Weather3°C (37°F)182 mm (7.2 inches)88%moderate
December Weather-2°C (28°F)118 mm (4.6 inches)85%low

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