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May Weather in Oulunsalo, Finland

Last updated: August 23, 2025

In May, the average temperature in Oulunsalo, Finland hovers around 7°C (45°F). During this time, temperatures can dip as low as -6°C (21°F) and soar to a maximum of 27°C (80°F). Expect 49 mm (1.9 in) of precipitation spread over 8 days, contributing to an average humidity of 81%. Embrace the cozy yet dynamic weather!

May Temperature in Oulunsalo

In May in Oulunsalo, the average temperature is 7°C (45°F), with maximums reaching 27°C (80°F) and minimums dropping as low as -6°C (21°F). Be sure to pack layers to accommodate the wide temperature range during your travels.

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

The chart illustrates May temperature patterns in Oulunsalo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oulunsalo, May typically has an average temperature of 7°C (45°F), with highs reaching up to 27°C (80°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec191725334558635849393124
Data source: Temperature data for Oulunsalo 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 Oulunsalo

In Oulunsalo in May, the precipitation amount is 49 mm (1.9 in) spread over 8 days.

May Precipitation Trends in Oulunsalo

The chart displays monthly precipitation patterns in Oulunsalo, 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 Oulunsalo, May typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec404041384960739271816258
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Oulunsalo

In Oulunsalo in May, humidity is 81%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill wrapping around you, making outdoor adventures slightly uncomfortable and requiring extra layers to stay warm while exploring.

May Average Humidity in Oulunsalo

This chart illustrates the average monthly humidity levels in Oulunsalo, 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 Oulunsalo is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec100%98%95%87%81%77%79%84%90%95%95%99%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Oulunsalo

In Oulunsalo in May, 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 Oulunsalo for better planning.

Maximum UV Index Levels in Oulunsalo for May

The chart shows the monthly maximum UV Index (UVI) for Oulunsalo 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 Oulunsalo typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112346643211
Data source: Oulunsalo 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 Oulunsalo Compares to Other Months

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

This table compares monthly weather conditions in Oulunsalo, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (19°F)40 mm (1.6 inches)100%low
February Weather-8°C (17°F)40 mm (1.6 inches)98%low
March Weather-4°C (25°F)41 mm (1.6 inches)95%low
April Weather1°C (34°F)38 mm (1.5 inches)87%moderate
May Weather7°C (45°F)49 mm (1.9 inches)81%moderate
June Weather14°C (58°F)60 mm (2.4 inches)77%high
July Weather17°C (63°F)73 mm (2.9 inches)79%high
August Weather14°C (58°F)91 mm (3.6 inches)84%moderate
September Weather10°C (49°F)71 mm (2.8 inches)90%moderate
October Weather4°C (40°F)81 mm (3.2 inches)95%low
November Weather-1°C (31°F)62 mm (2.4 inches)95%low
December Weather-5°C (24°F)58 mm (2.3 inches)99%low

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