nomadseason

September Weather in Jaeppilae, Finland

Last updated: August 23, 2025

In September, the average temperature in Jaeppilae, Finland hovers around 10°C (51°F). Expect chilly days as temperatures can dip to a minimum of -1°C (31°F), while highs can reach up to 23°C (73°F). Be prepared for frequent rain, with a precipitation amount of 85 mm (3.4 in) spread over approximately 14 days. The air will be quite humid, with an average humidity level of 91%.

September Temperature in Jaeppilae

In September in Jaeppilae, the average temperature is 10°C (51°F). Maximums can reach 23°C (73°F) and minimums can be as low as -1°C (31°F). This weather makes it a great time for travelers to enjoy a mix of mild days and chilly evenings, so be sure to pack accordingly!

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

The chart illustrates September temperature patterns in Jaeppilae, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jaeppilae, September typically has an average temperature of 10°C (51°F), with highs reaching up to 23°C (73°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec222027364860636050413426
Data source: Temperature data for Jaeppilae generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Jaeppilae

In Jaeppilae in September, the precipitation amount is 85 mm (3.4 in) spread over 14 days, contributing to the region's overall climate patterns.

September Precipitation Trends in Jaeppilae

The chart displays monthly precipitation patterns in Jaeppilae, 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 Jaeppilae, September typically receives around 85 mm (3.4 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec494242445863869085756766
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Jaeppilae

In Jaeppilae in September, humidity is 91%. With an average temperature of 10°C (51°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration uncomfortable and leaving you yearning for warm, dry shelter.

September Average Humidity in Jaeppilae

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

In Jaeppilae 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 Jaeppilae, you can check the information here.

Maximum UV Index Levels in Jaeppilae for September

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

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

This table compares monthly weather conditions in Jaeppilae, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)49 mm (1.9 inches)99%low
February Weather-7°C (21°F)42 mm (1.6 inches)97%low
March Weather-3°C (27°F)42 mm (1.7 inches)95%moderate
April Weather2°C (36°F)44 mm (1.7 inches)87%moderate
May Weather9°C (48°F)58 mm (2.3 inches)78%moderate
June Weather16°C (60°F)63 mm (2.5 inches)74%high
July Weather17°C (63°F)86 mm (3.4 inches)80%high
August Weather15°C (60°F)90 mm (3.5 inches)85%moderate
September Weather10°C (51°F)85 mm (3.4 inches)91%moderate
October Weather5°C (42°F)75 mm (3.0 inches)95%low
November Weather1°C (34°F)67 mm (2.6 inches)94%low
December Weather-4°C (26°F)66 mm (2.6 inches)98%low

Compare Jaeppilae's Climate with Cities Worldwide