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September Weather in Naerpes, Finland

Last updated: August 23, 2025

In September, the average temperature in Naerpes, Finland hovers around 11°C (53°F). Expect a minimum drop to 1°C (34°F) and highs peaking at 23°C (73°F). Be prepared for 83 mm (3.3 in) of precipitation over approximately 12 days, coupled with a notable average humidity of 88%.

September Temperature in Naerpes

In September in Naerpes, the average temperature is 11°C (53°F). Maximums can reach 23°C (73°F), while minimums can be as low as 1°C (34°F). Travelers should prepare for a mix of mild days and chilly nights.

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

The chart illustrates September temperature patterns in Naerpes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Naerpes, September typically has an average temperature of 11°C (53°F), with highs reaching up to 23°C (73°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec272530374758636052443730
Data source: Temperature data for Naerpes 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 Naerpes

In Naerpes in September, the precipitation amount is 83 mm (3.3 in) distributed over the course of 12 days.

September Precipitation Trends in Naerpes

The chart displays monthly precipitation patterns in Naerpes, 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 Naerpes, September typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec414644383755669783896265
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Naerpes

In Naerpes in September humidity is 88%. With an average temperature of 11°C (53°F), this humidity feels like a heavy blanket wrapping around you, making travel feel sluggish and uncomfortable as you navigate the damp air.

September Average Humidity in Naerpes

This chart illustrates the average monthly humidity levels in Naerpes, 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 Naerpes is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec95%93%91%85%77%75%80%82%88%92%92%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Naerpes

In Naerpes 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 Naerpes, you can check the information here.

Maximum UV Index Levels in Naerpes for September

The chart shows the monthly maximum UV Index (UVI) for Naerpes 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 Naerpes typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112456653211
Data source: Naerpes 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 Naerpes Compares to Other Months

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

This table compares monthly weather conditions in Naerpes, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (28°F)41 mm (1.6 inches)95%low
February Weather-4°C (25°F)46 mm (1.8 inches)93%low
March Weather-1°C (30°F)44 mm (1.7 inches)91%low
April Weather3°C (38°F)38 mm (1.5 inches)85%moderate
May Weather8°C (47°F)37 mm (1.5 inches)77%moderate
June Weather14°C (58°F)55 mm (2.2 inches)74%high
July Weather17°C (63°F)65 mm (2.6 inches)80%high
August Weather16°C (60°F)97 mm (3.8 inches)82%moderate
September Weather11°C (53°F)83 mm (3.3 inches)88%moderate
October Weather6°C (44°F)89 mm (3.5 inches)92%low
November Weather3°C (37°F)62 mm (2.4 inches)92%low
December Weather-1°C (31°F)65 mm (2.6 inches)93%low

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