May Weather in Giessen, Germany

Last updated: August 23, 2025

In May, the average temperature in Giessen, Germany hovers around 13°C (56°F). Expect a range where minimums can dip to 0°C (32°F) and maximums can soar up to 31°C (89°F). During this time, precipitation averages 73 mm (2.9 in) over 11 days, contributing to an average humidity level of 76%.

May Temperature in Giessen

In May in Giessen, the average temperature is 13°C (56°F). The maximum can reach 31°C (89°F), and the minimum can be as low as 0°C (32°F). This variation in temperature makes Giessen an ideal destination for travelers who enjoy both mild days and cooler evenings.

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

The chart illustrates May temperature patterns in Giessen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Giessen, May typically has an average temperature of 13°C (56°F), with highs reaching up to 31°C (89°F) and lows dropping to around 0°C (32°F).

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

May Precipitation in Giessen

In Giessen in May, the precipitation amount is 73 mm (2.9 in), spread over 11 days.

May Precipitation Trends in Giessen

The chart displays monthly precipitation patterns in Giessen, 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 Giessen, May typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 11 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 Giessen

In Giessen 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 Giessen

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

In Giessen 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 Giessen.

Maximum UV Index Levels in Giessen for May

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

Data source: Giessen 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 Giessen Compares to Other Months

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

This table compares monthly weather conditions in Giessen, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	62 mm (2.4 inches)	92%	low
February Weather	3°C (38°F)	54 mm (2.1 inches)	90%	low
March Weather	6°C (43°F)	66 mm (2.6 inches)	87%	moderate
April Weather	10°C (50°F)	36 mm (1.4 inches)	83%	moderate
May Weather	13°C (56°F)	73 mm (2.9 inches)	76%	high
June Weather	19°C (66°F)	64 mm (2.5 inches)	74%	very high
July Weather	19°C (67°F)	68 mm (2.7 inches)	74%	very high
August Weather	20°C (67°F)	64 mm (2.5 inches)	75%	high
September Weather	15°C (60°F)	41 mm (1.6 inches)	82%	moderate
October Weather	11°C (52°F)	54 mm (2.1 inches)	88%	moderate
November Weather	6°C (42°F)	47 mm (1.9 inches)	90%	low
December Weather	4°C (39°F)	95 mm (3.7 inches)	92%	low