May Weather in Rantasalmi, Finland

Last updated: August 23, 2025

The average temperature in Rantasalmi, Finland during May is a mild 10°C (49°F). Temperature can vary significantly, with a minimum of -4°C (25°F) and a maximum of 27°C (80°F). Expect about 55 mm (2.2 in) of precipitation spread over 11 days and an average humidity of 77%.

May Temperature in Rantasalmi

In May, in Rantasalmi, the average temperature is 10°C (49°F). The maximum can reach 27°C (80°F), and the minimum can be as low as -4°C (25°F). Be prepared for a wide range of temperatures and pack accordingly for your travels!

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

The chart illustrates May temperature patterns in Rantasalmi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rantasalmi, May typically has an average temperature of 10°C (49°F), with highs reaching up to 27°C (80°F) and lows dropping to around -4°C (25°F).

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

May Precipitation in Rantasalmi

In Rantasalmi, in May, the total precipitation amount is 55 mm (2.2 in) over the course of 11 days.

May Precipitation Trends in Rantasalmi

The chart displays monthly precipitation patterns in Rantasalmi, 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 Rantasalmi, May typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 11 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Rantasalmi

In Rantasalmi in May, humidity is 77%. With an average temperature of 10°C (49°F), this humidity feels like a chilly, damp embrace that can make outdoor activities quite uncomfortable for traveling, as the cold dampness seeps into clothing and chills the bones, leaving one longing for warmer, drier conditions.

May Average Humidity in Rantasalmi

This chart illustrates the average monthly humidity levels in Rantasalmi, 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 Rantasalmi 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 Rantasalmi

In Rantasalmi 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 Rantasalmi.

Maximum UV Index Levels in Rantasalmi for May

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

Data source: Rantasalmi 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 Rantasalmi Compares to Other Months

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

This table compares monthly weather conditions in Rantasalmi, 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 (22°F)	49 mm (1.9 inches)	98%	low
February Weather	-6°C (21°F)	44 mm (1.7 inches)	96%	low
March Weather	-3°C (27°F)	46 mm (1.8 inches)	93%	moderate
April Weather	2°C (36°F)	46 mm (1.8 inches)	88%	moderate
May Weather	10°C (49°F)	55 mm (2.2 inches)	77%	moderate
June Weather	16°C (61°F)	67 mm (2.6 inches)	75%	high
July Weather	17°C (63°F)	77 mm (3.0 inches)	82%	high
August Weather	15°C (60°F)	81 mm (3.2 inches)	84%	moderate
September Weather	10°C (51°F)	77 mm (3.0 inches)	90%	moderate
October Weather	5°C (42°F)	76 mm (3.0 inches)	93%	low
November Weather	1°C (34°F)	57 mm (2.2 inches)	93%	low
December Weather	-4°C (26°F)	70 mm (2.8 inches)	95%	low