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April Weather in Perna, Finland

Last updated: August 23, 2025

In April, the average temperature in Perna, Finland hovers around 4°C (40°F). However, prepare for the unexpected, as temperatures can plunge to a brisk -14°C (8°F) or climb to a comfortable 21°C (69°F). Expect around 46 mm (1.8 in) of precipitation spread over 11 days, and keep in mind that the average humidity is a moist 87%.

April Temperature in Perna

In April in Perna, the average temperature is 4°C (40°F), with maximums reaching 21°C (69°F) and minimums plummeting to as low as -14°C (8°F). Travelers should be prepared for a wide range of temperatures, so it’s essential to pack accordingly.

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

The chart illustrates April 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, April typically has an average temperature of 4°C (40°F), with highs reaching up to 21°C (69°F) and lows dropping to around -14°C (8°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.

April Precipitation in Perna

In Perna in April, the precipitation amount is 46 mm (1.8 in) over the course of 11 days.

April Precipitation Trends in Perna

The chart displays monthly precipitation patterns in Perna, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Perna, April typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec544948464850677460805875
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Perna

In Perna in April humidity is 87%. With an average temperature of 4°C (40°F), this humidity feels like an uncomfortable chill that seeps into your bones, making it essential to dress warmly and prepare for damp conditions, which can dampen your spirits while traveling.

April Average Humidity in Perna

This chart illustrates the average monthly humidity levels in Perna, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Perna is approximately 87%, 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 April generated using information from the Copernicus Climate Change Service.

April UV Index in Perna

In Perna in April, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Perna for better planning.

Maximum UV Index Levels in Perna for April

The chart shows the monthly maximum UV Index (UVI) for Perna in April, 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 April, the maximum UV index in Perna typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113457754211
Data source: Perna April 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 April 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 April’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 April’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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