May Weather in Kajaani, Finland

Last updated: August 23, 2025

In Kajaani, Finland, the average temperature in May hovers around 7°C (44°F). While chilly days can dip to a minimum of -8°C (18°F), occasional warmth can see highs of 26°C (79°F). Expect about 55 mm (2.2 in) of precipitation spread over 10 days, with an average humidity level of 83%. Perfect for those who enjoy a mix of brisk air and fresh rainfall!

May Temperature in Kajaani

In May, in Kajaani, the average temperature is 7°C (44°F). The maximum can reach 26°C (79°F), while the minimum can dip as low as -8°C (18°F). This variety in temperatures makes Kajaani a destination where travelers should be prepared for both warm days and chilly nights.

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

The chart illustrates May temperature patterns in Kajaani, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kajaani, May typically has an average temperature of 7°C (44°F), with highs reaching up to 26°C (79°F) and lows dropping to around -8°C (18°F).

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

May Precipitation in Kajaani

In Kajaani in May, the precipitation amount is 55 mm (2.2 in) spread over a duration of 10 days.

May Precipitation Trends in Kajaani

The chart displays monthly precipitation patterns in Kajaani, 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 Kajaani, May typically receives around 55 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.

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Millimeters (mm) Inches (in)

May Humidity in Kajaani

In Kajaani in May, humidity is 83%. With an average temperature of 7°C (44°F), this humidity feels like a damp chill that seeps into your bones, making exploring outdoors somewhat uncomfortable and requiring extra layers to stay warm and dry.

May Average Humidity in Kajaani

This chart illustrates the average monthly humidity levels in Kajaani, 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 Kajaani is approximately 83%, 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 Kajaani

In Kajaani 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 Kajaani.

Maximum UV Index Levels in Kajaani for May

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

Data source: Kajaani 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 Kajaani Compares to Other Months

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

This table compares monthly weather conditions in Kajaani, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (18°F)	45 mm (1.8 inches)	101%	low
February Weather	-8°C (17°F)	41 mm (1.6 inches)	99%	low
March Weather	-4°C (24°F)	45 mm (1.8 inches)	94%	low
April Weather	1°C (34°F)	42 mm (1.6 inches)	88%	moderate
May Weather	7°C (44°F)	55 mm (2.2 inches)	83%	moderate
June Weather	14°C (58°F)	71 mm (2.8 inches)	79%	high
July Weather	16°C (61°F)	94 mm (3.7 inches)	83%	high
August Weather	14°C (58°F)	99 mm (3.9 inches)	87%	moderate
September Weather	9°C (48°F)	83 mm (3.2 inches)	91%	moderate
October Weather	4°C (39°F)	86 mm (3.4 inches)	96%	low
November Weather	-1°C (30°F)	75 mm (2.9 inches)	96%	low
December Weather	-5°C (23°F)	59 mm (2.3 inches)	100%	low