May Weather in Karis, Finland

Last updated: August 23, 2025

In May, the average temperature in Karis, Finland is a cool 9°C (48°F), with a minimum dipping down to -1°C (30°F) and a maximum rising to 22°C (72°F). Visitors can expect about 47 mm (1.9 in) of precipitation spread over 8 days and a pleasant average humidity of 76%.

May Temperature in Karis

In May in Karis, the average temperature is 9°C (48°F). Maximums can reach 22°C (72°F), and minimums can drop as low as -1°C (30°F). Be prepared for a range of temperatures when traveling during this month.

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

The chart illustrates May temperature patterns in Karis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Karis, May typically has an average temperature of 9°C (48°F), with highs reaching up to 22°C (72°F) and lows dropping to around -1°C (30°F).

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

May Precipitation in Karis

In Karis in May, the precipitation amount is 47 mm (1.9 in) over a span of 8 days.

May Precipitation Trends in Karis

The chart displays monthly precipitation patterns in Karis, 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 Karis, May typically receives around 47 mm (1.9 inches) of precipitation spread over approximately 8 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 Karis

In Karis in May humidity is 76%. With an average temperature of 9°C (48°F), this humidity feels like a chilly embrace, making outdoor activities feel damp and brisk, potentially leaving you feeling colder than the temperature suggests.

May Average Humidity in Karis

This chart illustrates the average monthly humidity levels in Karis, 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 Karis is approximately 76%, 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 Karis

In Karis 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 Karis.

Maximum UV Index Levels in Karis for May

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

Data source: Karis 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 Karis Compares to Other Months

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

This table compares monthly weather conditions in Karis, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (30°F)	60 mm (2.3 inches)	92%	low
February Weather	-2°C (28°F)	50 mm (2.0 inches)	91%	low
March Weather	0°C (32°F)	55 mm (2.2 inches)	90%	moderate
April Weather	4°C (39°F)	36 mm (1.4 inches)	87%	moderate
May Weather	9°C (48°F)	47 mm (1.9 inches)	76%	moderate
June Weather	15°C (60°F)	46 mm (1.8 inches)	80%	high
July Weather	18°C (64°F)	73 mm (2.9 inches)	80%	high
August Weather	17°C (63°F)	86 mm (3.4 inches)	83%	moderate
September Weather	13°C (55°F)	71 mm (2.8 inches)	87%	moderate
October Weather	8°C (47°F)	110 mm (4.3 inches)	90%	low
November Weather	5°C (41°F)	76 mm (3.0 inches)	91%	low
December Weather	1°C (33°F)	80 mm (3.1 inches)	90%	low