May Weather in Iserlohn, Germany

Last updated: August 23, 2025

In May, the average temperature in Iserlohn, Germany hovers around 13°C (56°F), with a range that sees lows of 0°C (32°F) and highs reaching up to 32°C (90°F). During this month, expect about 73 mm (2.9 in) of precipitation over 13 days, contributing to an average humidity of 76%.

May Temperature in Iserlohn

In May in Iserlohn, the average temperature is 13°C (56°F), with maximums reaching up to 32°C (90°F) and minimums dropping as low as 0°C (32°F). This varied climate makes Iserlohn an ideal destination for travelers who enjoy both warm days and cool nights.

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

The chart illustrates May temperature patterns in Iserlohn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iserlohn, May typically has an average temperature of 13°C (56°F), with highs reaching up to 32°C (90°F) and lows dropping to around 0°C (32°F).

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

May Precipitation in Iserlohn

In Iserlohn in May, the precipitation amount is 73 mm (2.9 in) over the course of 13 days.

May Precipitation Trends in Iserlohn

The chart displays monthly precipitation patterns in Iserlohn, 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 Iserlohn, May typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 13 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 Iserlohn

In Iserlohn in May humidity is 76%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket enveloping you, making travel a bit uncomfortable as you navigate through the heavy, moisture-laden air.

May Average Humidity in Iserlohn

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

In Iserlohn in May, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Iserlohn.

Maximum UV Index Levels in Iserlohn for May

The chart shows the monthly maximum UV Index (UVI) for Iserlohn 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 Iserlohn typically reaches 7, which falls under the high exposure category.

Data source: Iserlohn 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 Iserlohn Compares to Other Months

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

This table compares monthly weather conditions in Iserlohn, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (38°F)	80 mm (3.1 inches)	92%	low
February Weather	4°C (40°F)	82 mm (3.2 inches)	90%	low
March Weather	6°C (44°F)	84 mm (3.3 inches)	87%	moderate
April Weather	10°C (50°F)	42 mm (1.6 inches)	83%	moderate
May Weather	13°C (56°F)	73 mm (2.9 inches)	76%	high
June Weather	18°C (65°F)	67 mm (2.6 inches)	74%	very high
July Weather	19°C (66°F)	93 mm (3.7 inches)	74%	very high
August Weather	19°C (66°F)	80 mm (3.1 inches)	75%	high
September Weather	15°C (59°F)	63 mm (2.5 inches)	82%	moderate
October Weather	12°C (53°F)	91 mm (3.6 inches)	88%	moderate
November Weather	7°C (44°F)	57 mm (2.3 inches)	90%	low
December Weather	5°C (40°F)	102 mm (4.0 inches)	92%	low