May Weather in Siilinjaervi, Finland

Last updated: August 23, 2025

In Siilinjaervi, Finland, the average temperature in May hovers around 8°C (47°F), with a minimum of -5°C (22°F) and a maximum of 27°C (81°F). Expect about 56 mm (2.2 in) of precipitation over 10 days, contributing to an average humidity of 78%. Be prepared for a variety of weather conditions as you enjoy your time in this vibrant locale!

May Temperature in Siilinjaervi

In May in Siilinjaervi, the average temperature is 8°C (47°F). Maximums can reach 27°C (81°F), while minimums can be as low as -5°C (22°F). This variation makes it essential for travelers to pack layers to accommodate both warm and chilly conditions.

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

The chart illustrates May temperature patterns in Siilinjaervi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Siilinjaervi, May typically has an average temperature of 8°C (47°F), with highs reaching up to 27°C (81°F) and lows dropping to around -5°C (22°F).

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

May Precipitation in Siilinjaervi

In Siilinjaervi in May, the precipitation amount is 56 mm (2.2 in) over the course of 10 days.

May Precipitation Trends in Siilinjaervi

The chart displays monthly precipitation patterns in Siilinjaervi, 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 Siilinjaervi, May typically receives around 56 mm (2.2 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 Siilinjaervi

In Siilinjaervi in May, humidity is 78%. With an average temperature of 8°C (47°F), this humidity feels like a chilly embrace, making travel invigorating yet damp, as the cool air wraps around you, emphasizing the need for layers to stay comfortable while exploring.

May Average Humidity in Siilinjaervi

This chart illustrates the average monthly humidity levels in Siilinjaervi, 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 Siilinjaervi is approximately 78%, 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 Siilinjaervi

In Siilinjaervi 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 Siilinjaervi.

Maximum UV Index Levels in Siilinjaervi for May

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

Data source: Siilinjaervi 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 Siilinjaervi Compares to Other Months

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

This table compares monthly weather conditions in Siilinjaervi, 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)	49 mm (1.9 inches)	99%	low
February Weather	-7°C (19°F)	43 mm (1.7 inches)	98%	low
March Weather	-3°C (26°F)	43 mm (1.7 inches)	95%	moderate
April Weather	2°C (35°F)	42 mm (1.6 inches)	87%	moderate
May Weather	8°C (47°F)	56 mm (2.2 inches)	78%	moderate
June Weather	15°C (60°F)	66 mm (2.6 inches)	75%	high
July Weather	17°C (64°F)	84 mm (3.3 inches)	83%	high
August Weather	15°C (60°F)	103 mm (4.0 inches)	88%	moderate
September Weather	10°C (50°F)	91 mm (3.6 inches)	92%	moderate
October Weather	5°C (41°F)	84 mm (3.3 inches)	95%	low
November Weather	1°C (33°F)	77 mm (3.0 inches)	94%	low
December Weather	-4°C (25°F)	68 mm (2.7 inches)	98%	low