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September Weather in Saarijaervi, Finland

Last updated: August 23, 2025

In Saarijaervi, Finland, the average temperature in September hovers around 9°C (49°F), with minimums dipping to -4°C (25°F) and maximums reaching a cozy 23°C (73°F). Expect precipitation of approximately 77 mm (3.0 in) over 12 days, and be prepared for high humidity levels at a striking 91%!

September Temperature in Saarijaervi

In September in Saarijaervi, the average temperature is 9°C (49°F). Maximums can reach 23°C (73°F), and minimums can be as low as -4°C (25°F). This variation makes it essential for travelers to prepare for both mild and chilly weather during their visit.

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

The chart illustrates September temperature patterns in Saarijaervi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saarijaervi, September typically has an average temperature of 9°C (49°F), with highs reaching up to 23°C (73°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec222027354860625949403325
Data source: Temperature data for Saarijaervi 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 Saarijaervi

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

September Precipitation Trends in Saarijaervi

The chart displays monthly precipitation patterns in Saarijaervi, 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 Saarijaervi, September typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec444239456660719277796259
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Saarijaervi

In Saarijaervi in September humidity is 91%. With an average temperature of 9°C (49°F), this humidity feels like a chilly mist enveloping you, making travel uncomfortable as the dampness seeps into your clothing and chills you to the bone.

September Average Humidity in Saarijaervi

This chart illustrates the average monthly humidity levels in Saarijaervi, 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 Saarijaervi is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec99%97%95%87%78%74%80%85%91%95%94%98%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Saarijaervi

In Saarijaervi 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 Saarijaervi, you can check the information here.

Maximum UV Index Levels in Saarijaervi for September

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

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

This table compares monthly weather conditions in Saarijaervi, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)43 mm (1.7 inches)99%low
February Weather-7°C (20°F)41 mm (1.6 inches)97%low
March Weather-3°C (27°F)39 mm (1.5 inches)95%moderate
April Weather2°C (35°F)45 mm (1.8 inches)87%moderate
May Weather9°C (48°F)66 mm (2.6 inches)78%moderate
June Weather15°C (60°F)60 mm (2.3 inches)74%high
July Weather17°C (63°F)71 mm (2.8 inches)80%high
August Weather15°C (59°F)92 mm (3.6 inches)85%moderate
September Weather9°C (49°F)77 mm (3.0 inches)91%moderate
October Weather5°C (40°F)78 mm (3.1 inches)95%low
November Weather0°C (33°F)62 mm (2.4 inches)94%low
December Weather-4°C (26°F)59 mm (2.3 inches)98%low

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