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September Weather in Auttoinen, Finland

Last updated: August 23, 2025

In September, the average temperature in Auttoinen, Finland hovers around 11°C (52°F). While you might experience chilly spells with minimum temperatures dropping to -1°C (31°F), the days can warm up to a comfortable 23°C (73°F). Be prepared for some wet weather, as precipitation levels reach about 68 mm (2.7 in) over 12 days. Don't forget to consider the high humidity, averaging a sticky 90% during this month!

September Temperature in Auttoinen

In September in Auttoinen, the average temperature is 11°C (52°F). The maximum can reach 23°C (73°F), while the minimum can drop as low as -1°C (31°F). This variation makes it essential to pack layers and be prepared for both warm and cool weather when traveling.

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

The chart illustrates September temperature patterns in Auttoinen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Auttoinen, September typically has an average temperature of 11°C (52°F), with highs reaching up to 23°C (73°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec252329374961636051433628
Data source: Temperature data for Auttoinen 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 Auttoinen

In Auttoinen in September, the precipitation amount is 68 mm (2.7 in) over the course of 12 days.

September Precipitation Trends in Auttoinen

The chart displays monthly precipitation patterns in Auttoinen, 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 Auttoinen, September typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec474143456070828768805467
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Auttoinen

In Auttoinen in September, humidity is 90%. With an average temperature of 11°C (52°F), this humidity feels like a heavy blanket that clings to your skin, making travel uncomfortable and muggy.

September Average Humidity in Auttoinen

This chart illustrates the average monthly humidity levels in Auttoinen, 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 Auttoinen is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec97%95%93%87%75%75%80%83%90%93%94%95%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Auttoinen

In Auttoinen in September, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Auttoinen, you can check the information here.

Maximum UV Index Levels in Auttoinen for September

The chart shows the monthly maximum UV Index (UVI) for Auttoinen 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 Auttoinen typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113456653211
Data source: Auttoinen 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 Auttoinen Compares to Other Months

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

This table compares monthly weather conditions in Auttoinen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)47 mm (1.9 inches)97%low
February Weather-5°C (23°F)41 mm (1.6 inches)95%low
March Weather-2°C (29°F)43 mm (1.7 inches)93%moderate
April Weather3°C (38°F)45 mm (1.8 inches)86%moderate
May Weather10°C (50°F)60 mm (2.4 inches)75%moderate
June Weather16°C (61°F)70 mm (2.8 inches)75%high
July Weather17°C (63°F)82 mm (3.2 inches)80%high
August Weather16°C (60°F)87 mm (3.4 inches)83%moderate
September Weather11°C (52°F)68 mm (2.7 inches)90%moderate
October Weather6°C (43°F)80 mm (3.2 inches)93%low
November Weather2°C (36°F)54 mm (2.1 inches)94%low
December Weather-2°C (28°F)67 mm (2.6 inches)95%low

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