May Weather in Oulainen, Finland

Last updated: August 23, 2025

In May, the average temperature in Oulainen, Finland hovers around 8°C (47°F). Expect a wide temperature range, with a minimum of -5°C (24°F) and a maximum reaching up to 28°C (82°F). Rainfall is notable, with 59 mm (2.3 in) expected over approximately 10 days, while humidity remains high at 80%.

May Temperature in Oulainen

In May in Oulainen, the average temperature is 8°C (47°F), with maximums reaching up to 28°C (82°F) and minimums dipping as low as -5°C (24°F). It's advisable to pack layers for your trip, as the weather can vary significantly throughout the day.

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

The chart illustrates May temperature patterns in Oulainen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oulainen, May typically has an average temperature of 8°C (47°F), with highs reaching up to 28°C (82°F) and lows dropping to around -5°C (24°F).

Data source: Temperature data for Oulainen generated using information from the Copernicus Climate Change Service.

May Precipitation in Oulainen

In Oulainen in May, the precipitation amount is 59 mm (2.3 in) over the course of 10 days.

May Precipitation Trends in Oulainen

The chart displays monthly precipitation patterns in Oulainen, 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 Oulainen, May typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Oulainen

In Oulainen in May, humidity is 80%. With an average temperature of 8°C (47°F), this humidity feels like you're walking through a heavy mist, making your clothes cling to your skin and every step prone to a shiver, which can be quite uncomfortable for traveling.

May Average Humidity in Oulainen

This chart illustrates the average monthly humidity levels in Oulainen, 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 Oulainen is approximately 80%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Oulainen

In Oulainen 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 Oulainen.

Maximum UV Index Levels in Oulainen for May

The chart shows the monthly maximum UV Index (UVI) for Oulainen 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 Oulainen typically reaches 5, which falls under the moderate exposure category.

Data source: Oulainen 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 Oulainen Compares to Other Months

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

This table compares monthly weather conditions in Oulainen, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	38 mm (1.5 inches)	99%	low
February Weather	-7°C (19°F)	39 mm (1.5 inches)	97%	low
March Weather	-3°C (27°F)	38 mm (1.5 inches)	93%	low
April Weather	2°C (35°F)	40 mm (1.6 inches)	86%	moderate
May Weather	8°C (47°F)	59 mm (2.3 inches)	80%	moderate
June Weather	15°C (59°F)	57 mm (2.3 inches)	76%	high
July Weather	17°C (63°F)	74 mm (2.9 inches)	79%	high
August Weather	14°C (58°F)	93 mm (3.7 inches)	83%	moderate
September Weather	9°C (49°F)	76 mm (3.0 inches)	89%	moderate
October Weather	4°C (40°F)	83 mm (3.3 inches)	94%	low
November Weather	0°C (32°F)	61 mm (2.4 inches)	94%	low
December Weather	-4°C (25°F)	50 mm (2.0 inches)	98%	low