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October Weather in Perna, Finland

Last updated: August 23, 2025

In Perna, Finland, the average temperature in October hovers around 7°C (45°F). Temperatures can dip as low as -5°C (24°F) or rise to a maximum of 17°C (64°F). Expect 80 mm (3.2 in) of precipitation spread over approximately 15 days, with a high average humidity level of 94%. Prepare for a wet and chilly month!

October Temperature in Perna

In October in Perna, the average temperature is 7°C (45°F). Maximum temperatures can reach 17°C (64°F), while minimums can drop as low as -5°C (24°F). Be sure to pack layers to stay comfortable during your travels.

October Weather in Perna: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Perna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Perna, October typically has an average temperature of 7°C (45°F), with highs reaching up to 17°C (64°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec272530405162656253443730
Data source: Temperature data for Perna 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.

October Precipitation in Perna

In Perna in October, the total precipitation amount is 80 mm (3.2 in) spread over 15 days.

October Precipitation Trends in Perna

The chart displays monthly precipitation patterns in Perna, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Perna, October typically receives around 80 mm (3.2 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec544948464850677460805875
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Perna

In Perna in October, humidity is 94%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities less enjoyable and travel cumbersome as you navigate through the thick, heavy air.

October Average Humidity in Perna

This chart illustrates the average monthly humidity levels in Perna, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Perna is approximately 94%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec98%96%93%87%75%74%80%85%90%94%94%96%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Perna

In Perna in October, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Perna, you can visit Hourly UV Index in Perna.

Maximum UV Index Levels in Perna for October

The chart shows the monthly maximum UV Index (UVI) for Perna in October, 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 October, the maximum UV index in Perna typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113457754211
Data source: Perna October 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 October Weather in Perna Compares to Other Months

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

This table compares monthly weather conditions in Perna, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)54 mm (2.1 inches)98%low
February Weather-4°C (25°F)49 mm (1.9 inches)96%low
March Weather-1°C (31°F)48 mm (1.9 inches)93%moderate
April Weather4°C (40°F)46 mm (1.8 inches)87%moderate
May Weather11°C (51°F)48 mm (1.9 inches)75%moderate
June Weather17°C (62°F)50 mm (2.0 inches)74%high
July Weather18°C (65°F)67 mm (2.6 inches)80%high
August Weather17°C (62°F)74 mm (2.9 inches)85%moderate
September Weather12°C (53°F)60 mm (2.4 inches)90%moderate
October Weather7°C (45°F)80 mm (3.2 inches)94%low
November Weather3°C (37°F)58 mm (2.3 inches)94%low
December Weather-1°C (30°F)75 mm (2.9 inches)96%low

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