May Weather in Kallby, Finland

Last updated: August 23, 2025

In May, the average temperature in Kallby, Finland hovers around 8°C (46°F). Expect a range from a chilly -4°C (26°F) to a pleasant 25°C (78°F). You'll experience 49 mm (1.9 in) of precipitation spread across 8 days, with an average humidity level of 77%. Prepare accordingly for a mix of conditions!

May Temperature in Kallby

In May in Kallby, the average temperature is 8°C (46°F). Maximums can reach 25°C (78°F), while minimums can drop as low as -4°C (26°F). Make sure to pack layers to stay comfortable while exploring the diverse climate!

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

The chart illustrates May temperature patterns in Kallby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kallby, May typically has an average temperature of 8°C (46°F), with highs reaching up to 25°C (78°F) and lows dropping to around -4°C (26°F).

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

May Precipitation in Kallby

In Kallby in May, the precipitation amount is 49 mm (1.9 in) spread over 8 days.

May Precipitation Trends in Kallby

The chart displays monthly precipitation patterns in Kallby, 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 Kallby, May typically receives around 49 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 Kallby

In Kallby in May humidity is 77%. With an average temperature of 8°C (46°F), this humidity feels like a damp chill wrapping around you, making outdoor activities less inviting and requiring extra layers to stay comfortable while exploring.

May Average Humidity in Kallby

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

In Kallby 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 Kallby.

Maximum UV Index Levels in Kallby for May

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

Data source: Kallby 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 Kallby Compares to Other Months

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

This table compares monthly weather conditions in Kallby, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	37 mm (1.4 inches)	97%	low
February Weather	-6°C (22°F)	40 mm (1.6 inches)	95%	low
March Weather	-2°C (28°F)	40 mm (1.6 inches)	92%	moderate
April Weather	2°C (36°F)	38 mm (1.5 inches)	85%	moderate
May Weather	8°C (46°F)	49 mm (1.9 inches)	77%	moderate
June Weather	14°C (58°F)	51 mm (2.0 inches)	74%	high
July Weather	17°C (63°F)	70 mm (2.7 inches)	79%	high
August Weather	15°C (59°F)	89 mm (3.5 inches)	82%	moderate
September Weather	10°C (51°F)	74 mm (2.9 inches)	89%	moderate
October Weather	5°C (42°F)	83 mm (3.3 inches)	93%	low
November Weather	1°C (35°F)	55 mm (2.2 inches)	93%	low
December Weather	-2°C (28°F)	48 mm (1.9 inches)	95%	low