May Weather in Sievi, Finland

Last updated: August 23, 2025

In May, the average temperature in Sievi, Finland hovers around 8°C (47°F). Expect chilly nights with minimums dropping to -5°C (22°F), while warm spells can reach up to a pleasant 28°C (83°F). With a precipitation total of 58 mm (2.3 in) spread over 11 days, it's wise to carry an umbrella. The air is quite humid, with an average humidity of 77%, making it feel a bit cooler than it actually is.

May Temperature in Sievi

In May in Sievi, the average temperature is 8°C (47°F). The maximum can reach 28°C (83°F), while the minimum can be as low as -5°C (22°F). This wide temperature range makes Sievi an ideal destination for travelers who enjoy both warm and cool weather experiences.

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

The chart illustrates May temperature patterns in Sievi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sievi, May typically has an average temperature of 8°C (47°F), with highs reaching up to 28°C (83°F) and lows dropping to around -5°C (22°F).

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

May Precipitation in Sievi

In Sievi in May, the precipitation amount is 58 mm (2.3 in) over the course of 11 days.

May Precipitation Trends in Sievi

The chart displays monthly precipitation patterns in Sievi, 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 Sievi, May typically receives around 58 mm (2.3 inches) of precipitation spread over approximately 11 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 Sievi

In Sievi in May, humidity is 77%. With an average temperature of 8°C (47°F), this humidity feels like a damp chill that can make even short walks outside feel uncomfortable, often clinging to your skin and making you long for warmer, drier conditions.

May Average Humidity in Sievi

This chart illustrates the average monthly humidity levels in Sievi, 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 Sievi is approximately 77%, 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 Sievi

In Sievi 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 Sievi.

Maximum UV Index Levels in Sievi for May

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

Data source: Sievi 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 Sievi Compares to Other Months

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

This table compares monthly weather conditions in Sievi, 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)	37 mm (1.5 inches)	97%	low
February Weather	-7°C (20°F)	40 mm (1.6 inches)	95%	low
March Weather	-3°C (27°F)	37 mm (1.5 inches)	92%	low
April Weather	2°C (36°F)	39 mm (1.5 inches)	85%	moderate
May Weather	8°C (47°F)	58 mm (2.3 inches)	77%	moderate
June Weather	15°C (59°F)	56 mm (2.2 inches)	74%	high
July Weather	17°C (63°F)	72 mm (2.9 inches)	79%	high
August Weather	14°C (58°F)	91 mm (3.6 inches)	82%	moderate
September Weather	10°C (49°F)	76 mm (3.0 inches)	89%	moderate
October Weather	4°C (40°F)	83 mm (3.3 inches)	93%	low
November Weather	0°C (32°F)	59 mm (2.3 inches)	93%	low
December Weather	-4°C (25°F)	48 mm (1.9 inches)	95%	low