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May Weather in Heidenheim, Germany

Last updated: August 23, 2025

In Heidenheim, Germany, the average temperature for May hovers around 13°C (55°F). Expect a minimum of 0°C (32°F) and a maximum of 30°C (86°F). During this month, the region sees about 102 mm (4.0 in) of precipitation over 15 days, with an average humidity of 77%.

May Temperature in Heidenheim

In May in Heidenheim, the average temperature is 13°C (55°F). Maximum temperatures can reach 30°C (86°F), while minimums can drop as low as 0°C (32°F). This diverse temperature range makes it essential for travelers to pack layers for their visit.

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

The chart illustrates May temperature patterns in Heidenheim, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heidenheim, May typically has an average temperature of 13°C (55°F), with highs reaching up to 30°C (86°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec333641485565666658504036
Data source: Temperature data for Heidenheim generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Heidenheim

In Heidenheim in May, the precipitation amount is 102 mm (4.0 in) over the course of 15 days.

May Precipitation Trends in Heidenheim

The chart displays monthly precipitation patterns in Heidenheim, 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 Heidenheim, May typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec625962381021098310053604796
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Heidenheim

In Heidenheim in May humidity is 77%. With an average temperature of 13°C (55°F), this humidity feels like a damp chill in the air, making travel somewhat uncomfortable as the moisture clings to your skin and adds a heavier weight to your clothing, which can sap your energy as you explore.

May Average Humidity in Heidenheim

This chart illustrates the average monthly humidity levels in Heidenheim, 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 Heidenheim is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%88%84%77%82%83%84%85%88%88%91%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Heidenheim

In Heidenheim in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Heidenheim.

Maximum UV Index Levels in Heidenheim for May

The chart shows the monthly maximum UV Index (UVI) for Heidenheim 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 Heidenheim typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Heidenheim 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 Heidenheim Compares to Other Months

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

This table compares monthly weather conditions in Heidenheim, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)62 mm (2.4 inches)91%low
February Weather2°C (37°F)59 mm (2.3 inches)89%moderate
March Weather5°C (41°F)62 mm (2.4 inches)88%moderate
April Weather9°C (49°F)38 mm (1.5 inches)84%high
May Weather13°C (55°F)102 mm (4.0 inches)77%very high
June Weather18°C (65°F)109 mm (4.3 inches)82%very high
July Weather19°C (66°F)83 mm (3.3 inches)83%very high
August Weather19°C (66°F)100 mm (3.9 inches)84%very high
September Weather15°C (58°F)53 mm (2.1 inches)85%high
October Weather10°C (50°F)60 mm (2.4 inches)88%moderate
November Weather4°C (40°F)47 mm (1.9 inches)88%low
December Weather2°C (36°F)96 mm (3.8 inches)91%low

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