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September Weather in Jaemijaervi, Finland

Last updated: August 23, 2025

In September, the average temperature in Jaemijaervi, Finland is a crisp 11°C (51°F). Expect the mercury to dip as low as -3°C (28°F) and occasionally rise to a pleasant 24°C (75°F). This month brings about 67 mm (2.6 in) of precipitation, spread over 12 days, contributing to an average humidity level of 90%. Embrace the vibrant, yet slightly damp, atmosphere that defines this season!

September Temperature in Jaemijaervi

In September in Jaemijaervi, the average temperature is 11°C (51°F). The maximum can reach 24°C (75°F), while the minimum can drop as low as -3°C (28°F). Be prepared for a variety of weather conditions while traveling during this time!

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

The chart illustrates September temperature patterns in Jaemijaervi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jaemijaervi, September typically has an average temperature of 11°C (51°F), with highs reaching up to 24°C (75°F) and lows dropping to around -3°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec252329374961636051423528
Data source: Temperature data for Jaemijaervi 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 Jaemijaervi

In Jaemijaervi in September, the precipitation amount is 67 mm (2.6 in) distributed over 12 days.

September Precipitation Trends in Jaemijaervi

The chart displays monthly precipitation patterns in Jaemijaervi, 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 Jaemijaervi, September typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec444346454865689867786565
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Jaemijaervi

In Jaemijaervi in September, humidity is 90%. With an average temperature of 11°C (51°F), this humidity feels like a damp blanket wrapping around you, making traveling uncomfortable and sticky, as every step leaves you feeling sluggish and clinging to the air.

September Average Humidity in Jaemijaervi

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

In Jaemijaervi 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 Jaemijaervi, you can check the information here.

Maximum UV Index Levels in Jaemijaervi for September

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

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

This table compares monthly weather conditions in Jaemijaervi, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)44 mm (1.7 inches)97%low
February Weather-5°C (23°F)43 mm (1.7 inches)95%low
March Weather-2°C (29°F)46 mm (1.8 inches)93%moderate
April Weather3°C (38°F)45 mm (1.8 inches)86%moderate
May Weather10°C (49°F)48 mm (1.9 inches)75%moderate
June Weather16°C (61°F)65 mm (2.5 inches)75%high
July Weather17°C (63°F)68 mm (2.7 inches)80%high
August Weather15°C (60°F)98 mm (3.8 inches)83%moderate
September Weather11°C (51°F)67 mm (2.6 inches)90%moderate
October Weather6°C (42°F)78 mm (3.1 inches)93%low
November Weather2°C (35°F)64 mm (2.5 inches)94%low
December Weather-2°C (29°F)65 mm (2.5 inches)95%low

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