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September Weather in Utajaervi, Finland

Last updated: August 23, 2025

In September, the average temperature in Utajaervi, Finland hovers around 9°C (48°F), with the mercury dipping as low as -7°C (20°F) and soaring up to 23°C (74°F). Expect about 77 mm (3.0 in) of precipitation over 12 days, contributing to a high average humidity of 90%. Prepare for a damp, cool month!

September Temperature in Utajaervi

In September in Utajaervi, the average temperature is 9°C (48°F), with maximums reaching 23°C (74°F) and minimums dropping as low as -7°C (20°F). It's advisable to pack layers to comfortably adapt to the varying temperatures while exploring the area.

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

The chart illustrates September temperature patterns in Utajaervi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Utajaervi, September typically has an average temperature of 9°C (48°F), with highs reaching up to 23°C (74°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec181724344658625748383023
Data source: Temperature data for Utajaervi 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 Utajaervi

In Utajaervi in September, the precipitation amount is 77 mm (3.0 in) spread over 12 days.

September Precipitation Trends in Utajaervi

The chart displays monthly precipitation patterns in Utajaervi, 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 Utajaervi, September typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec4241434155648910577877259
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Utajaervi

In Utajaervi in September, humidity is 90%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration quite uncomfortable and requiring heavier layers to stay warm and dry.

September Average Humidity in Utajaervi

This chart illustrates the average monthly humidity levels in Utajaervi, 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 Utajaervi is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec100%98%95%87%81%77%79%84%90%95%95%99%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Utajaervi

In Utajaervi 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 Utajaervi, you can check the information here.

Maximum UV Index Levels in Utajaervi for September

The chart shows the monthly maximum UV Index (UVI) for Utajaervi 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 Utajaervi typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112346643211
Data source: Utajaervi 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 Utajaervi Compares to Other Months

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

This table compares monthly weather conditions in Utajaervi, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)42 mm (1.7 inches)100%low
February Weather-9°C (17°F)41 mm (1.6 inches)98%low
March Weather-4°C (25°F)43 mm (1.7 inches)95%low
April Weather1°C (34°F)41 mm (1.6 inches)87%moderate
May Weather8°C (46°F)55 mm (2.2 inches)81%moderate
June Weather14°C (58°F)64 mm (2.5 inches)77%high
July Weather16°C (62°F)89 mm (3.5 inches)79%high
August Weather14°C (57°F)105 mm (4.1 inches)84%moderate
September Weather9°C (48°F)77 mm (3.0 inches)90%moderate
October Weather3°C (38°F)87 mm (3.4 inches)95%low
November Weather-1°C (30°F)72 mm (2.8 inches)95%low
December Weather-5°C (23°F)59 mm (2.3 inches)99%low

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