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May Weather in Petaejaevesi, Finland

Last updated: August 23, 2025

In May, the average temperature in Petaejaevesi, Finland hovers around 9°C (49°F). Temperatures can vary significantly, with a minimum of -6°C (22°F) and a maximum reaching up to 28°C (83°F). Expect some rainfall, as precipitation averages 63 mm (2.5 in) over 11 days throughout the month. With an average humidity of 78%, be prepared for a damp and cool atmosphere!

May Temperature in Petaejaevesi

In May in Petaejaevesi, the average temperature is 9°C (49°F). The maximum can reach 28°C (83°F), while the minimum can drop as low as -6°C (22°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack appropriately for both warm days and chilly nights.

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

The chart illustrates May temperature patterns in Petaejaevesi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Petaejaevesi, May typically has an average temperature of 9°C (49°F), with highs reaching up to 28°C (83°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec222127364861635950413326
Data source: Temperature data for Petaejaevesi 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 Petaejaevesi

In Petaejaevesi in May, the precipitation amount is 63 mm (2.5 in) during a total of 11 days.

May Precipitation Trends in Petaejaevesi

The chart displays monthly precipitation patterns in Petaejaevesi, 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 Petaejaevesi, May typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec474543476358709373766569
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Petaejaevesi

In Petaejaevesi in May, humidity is 78%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that clings to your skin, making it essential to dress in layers while traveling, as the cool air combines with the moisture to create a brisk and invigorating atmosphere.

May Average Humidity in Petaejaevesi

This chart illustrates the average monthly humidity levels in Petaejaevesi, 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 Petaejaevesi is approximately 78%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in Petaejaevesi

In Petaejaevesi 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 Petaejaevesi.

Maximum UV Index Levels in Petaejaevesi for May

The chart shows the monthly maximum UV Index (UVI) for Petaejaevesi 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 Petaejaevesi typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113456653211
Data source: Petaejaevesi 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 Petaejaevesi Compares to Other Months

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

This table compares monthly weather conditions in Petaejaevesi, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (22°F)47 mm (1.9 inches)99%low
February Weather-6°C (21°F)45 mm (1.8 inches)97%low
March Weather-3°C (28°F)43 mm (1.7 inches)95%moderate
April Weather2°C (36°F)47 mm (1.9 inches)87%moderate
May Weather9°C (49°F)63 mm (2.5 inches)78%moderate
June Weather16°C (61°F)58 mm (2.3 inches)74%high
July Weather17°C (63°F)70 mm (2.7 inches)80%high
August Weather15°C (59°F)93 mm (3.6 inches)85%moderate
September Weather10°C (50°F)73 mm (2.9 inches)91%moderate
October Weather5°C (41°F)76 mm (3.0 inches)95%low
November Weather1°C (34°F)65 mm (2.6 inches)94%low
December Weather-3°C (26°F)69 mm (2.7 inches)98%low

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