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September Weather in Kivijaervi, Finland

Last updated: August 23, 2025

In Kivijaervi, Finland, the average temperature in September hovers around 9°C (49°F), with minimums dipping to -4°C (26°F) and maximums reaching 22°C (72°F). Expect 76 mm (3.0 in) of precipitation spread over about 13 days, contributing to a notably high average humidity of 89%.

September Temperature in Kivijaervi

In September in Kivijaervi, the average temperature is 9°C (49°F). The maximum can reach 22°C (72°F), and the minimum can be as low as -4°C (26°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates September temperature patterns in Kivijaervi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kivijaervi, September typically has an average temperature of 9°C (49°F), with highs reaching up to 22°C (72°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec222027354759625849403325
Data source: Temperature data for Kivijaervi 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 Kivijaervi

In Kivijaervi in September, the total precipitation amount is 76 mm (3.0 in), which occurs over the course of 13 days.

September Precipitation Trends in Kivijaervi

The chart displays monthly precipitation patterns in Kivijaervi, 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 Kivijaervi, September typically receives around 76 mm (3.0 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec424139446257718876816456
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kivijaervi

In Kivijaervi in September, humidity is 89%. With an average temperature of 9°C (49°F), this humidity feels like a persistent dampness that clings to your clothes and skin, making it challenging to stay comfortable while traveling.

September Average Humidity in Kivijaervi

This chart illustrates the average monthly humidity levels in Kivijaervi, 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 Kivijaervi is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec97%95%92%85%77%74%79%82%89%93%93%95%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kivijaervi

In Kivijaervi 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 Kivijaervi, you can check the information here.

Maximum UV Index Levels in Kivijaervi for September

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

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

This table compares monthly weather conditions in Kivijaervi, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)42 mm (1.7 inches)97%low
February Weather-7°C (20°F)41 mm (1.6 inches)95%low
March Weather-3°C (27°F)39 mm (1.5 inches)92%moderate
April Weather2°C (35°F)44 mm (1.7 inches)85%moderate
May Weather8°C (47°F)62 mm (2.4 inches)77%moderate
June Weather15°C (59°F)57 mm (2.2 inches)74%high
July Weather17°C (62°F)71 mm (2.8 inches)79%high
August Weather15°C (59°F)88 mm (3.5 inches)82%moderate
September Weather9°C (49°F)76 mm (3.0 inches)89%moderate
October Weather4°C (40°F)81 mm (3.2 inches)93%low
November Weather0°C (33°F)64 mm (2.5 inches)93%low
December Weather-4°C (26°F)56 mm (2.2 inches)95%low

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