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May Weather in Lieto, Finland

Last updated: August 23, 2025

The average temperature in Lieto, Finland during May is a mild 10°C (50°F). However, expect temperature variations, with minimums plunging to -5°C (24°F) and maximums soaring up to 28°C (82°F). Visitors should also prepare for some rainfall, with an average precipitation of 51 mm (2.0 in) spread over about 10 days. The humidity levels hover around a comfortable 77%, making for an interesting mix of weather conditions throughout the month.

May Temperature in Lieto

In May in Lieto, the average temperature is 10°C (50°F). Maximums can reach 28°C (82°F), while minimums can dip as low as -5°C (24°F). Be prepared for a range of weather conditions, making it essential to pack layers for your travels.

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

The chart illustrates May 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, May typically has an average temperature of 10°C (50°F), with highs reaching up to 28°C (82°F) and lows dropping to around -5°C (24°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.

May Precipitation in Lieto

In Lieto in May, the total precipitation amount is 51 mm (2.0 in) spread over a period of 10 days.

May Precipitation Trends in Lieto

The chart displays monthly precipitation patterns in Lieto, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Lieto, May typically receives around 51 mm (2.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec484245355147789162765372
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Lieto

In Lieto in May, humidity is 77%. With an average temperature of 10°C (50°F), this humidity feels like a thick, heavy blanket enveloping you, making travel uncomfortable and sticky, as it clings to your skin and clothes, turning each step into a challenge.

May Average Humidity in Lieto

This chart illustrates the average monthly humidity levels in Lieto, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Lieto is approximately 77%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in Lieto

In Lieto in May, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Lieto.

Maximum UV Index Levels in Lieto for May

The chart shows the monthly maximum UV Index (UVI) for Lieto in May, 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 May, the maximum UV index in Lieto typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123457754211
Data source: Lieto May 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 May 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 May’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 May’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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