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April Weather in Lieto, Finland

Last updated: August 23, 2025

In April, the average temperature in Lieto, Finland hovers around 4°C (40°F). You might experience a chilly minimum of -11°C (13°F), while the mercury can rise to a pleasant 21°C (70°F). Expect about 35 mm (1.4 in) of precipitation spread over 10 days, accompanied by a relatively high average humidity of 85%.

April Temperature in Lieto

In April in Lieto, the average temperature is 4°C (40°F). The maximum can reach 21°C (70°F), and the minimum can be as low as -11°C (13°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for their visit.

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

The chart illustrates April temperature patterns in Lieto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lieto, April typically has an average temperature of 4°C (40°F), with highs reaching up to 21°C (70°F) and lows dropping to around -11°C (13°F).
JanFebMarAprMayJunJulAugSepOctNovDec282631405061646153443831
Data source: Temperature data for Lieto 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 Lieto

In Lieto in April, the precipitation amount is 35 mm (1.4 in) spread over a period of 10 days.

April Precipitation Trends in Lieto

The chart displays monthly precipitation patterns in Lieto, 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 Lieto, April typically receives around 35 mm (1.4 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec484245355147789162765372
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Lieto

In Lieto in April, humidity is 85%. With an average temperature of 4°C (40°F), this humidity feels like an icy blanket wrapping around you, making outdoor activities feel much colder and damp, which can be quite uncomfortable for traveling.

April Average Humidity in Lieto

This chart illustrates the average monthly humidity levels in Lieto, 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 Lieto is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%89%85%77%78%78%79%86%90%91%89%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Lieto

In Lieto 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 Lieto for better planning.

Maximum UV Index Levels in Lieto for April

The chart shows the monthly maximum UV Index (UVI) for Lieto 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 Lieto typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123457754211
Data source: Lieto 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 Lieto Compares to Other Months

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

This table compares monthly weather conditions in Lieto, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)48 mm (1.9 inches)92%low
February Weather-4°C (26°F)42 mm (1.7 inches)90%low
March Weather0°C (32°F)45 mm (1.8 inches)89%moderate
April Weather4°C (40°F)35 mm (1.4 inches)85%moderate
May Weather10°C (50°F)51 mm (2.0 inches)77%moderate
June Weather16°C (61°F)47 mm (1.8 inches)78%high
July Weather18°C (64°F)78 mm (3.1 inches)78%high
August Weather16°C (62°F)91 mm (3.6 inches)79%moderate
September Weather12°C (53°F)62 mm (2.4 inches)86%moderate
October Weather7°C (45°F)76 mm (3.0 inches)90%low
November Weather3°C (38°F)53 mm (2.1 inches)91%low
December Weather-1°C (31°F)72 mm (2.8 inches)89%low

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