May Weather in Hartola, Finland

Last updated: August 23, 2025

In May, the average temperature in Hartola, Finland hovers around 9°C (48°F), offering a mild climate. Expect a range that can dip as low as -4°C (26°F) and soar to 28°C (83°F). During this period, precipitation averages 57 mm (2.3 in) over 9 days, with an average humidity level of 75%, creating a refreshing, if slightly damp, atmosphere.

May Temperature in Hartola

In May in Hartola, the average temperature is 9°C (48°F). The maximum can reach 28°C (83°F), while the minimum can drop as low as -4°C (26°F). Be prepared for a varied climate, as it’s essential to pack layers to enjoy your travels comfortably.

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

The chart illustrates May temperature patterns in Hartola, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hartola, May typically has an average temperature of 9°C (48°F), with highs reaching up to 28°C (83°F) and lows dropping to around -4°C (26°F).

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

May Precipitation in Hartola

In Hartola in May, the precipitation amount is 57 mm (2.3 in) over the course of 9 days.

May Precipitation Trends in Hartola

The chart displays monthly precipitation patterns in Hartola, 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 Hartola, May typically receives around 57 mm (2.3 inches) of precipitation spread over approximately 9 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 Hartola

In Hartola in May humidity is 75%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill, making it essential to dress in layers for comfort while traveling.

May Average Humidity in Hartola

This chart illustrates the average monthly humidity levels in Hartola, 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 Hartola is approximately 75%, 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 Hartola

In Hartola 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 Hartola.

Maximum UV Index Levels in Hartola for May

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

Data source: Hartola 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 Hartola Compares to Other Months

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

This table compares monthly weather conditions in Hartola, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (24°F)	46 mm (1.8 inches)	98%	low
February Weather	-5°C (23°F)	43 mm (1.7 inches)	96%	low
March Weather	-2°C (29°F)	43 mm (1.7 inches)	93%	moderate
April Weather	3°C (37°F)	45 mm (1.8 inches)	87%	moderate
May Weather	9°C (48°F)	57 mm (2.3 inches)	75%	moderate
June Weather	15°C (60°F)	64 mm (2.5 inches)	74%	high
July Weather	17°C (63°F)	78 mm (3.1 inches)	80%	high
August Weather	16°C (61°F)	89 mm (3.5 inches)	85%	moderate
September Weather	11°C (52°F)	67 mm (2.6 inches)	90%	moderate
October Weather	6°C (43°F)	78 mm (3.1 inches)	94%	low
November Weather	2°C (36°F)	55 mm (2.2 inches)	94%	low
December Weather	-2°C (28°F)	68 mm (2.7 inches)	96%	low