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May Weather in Altenau, Germany

Last updated: August 23, 2025

In May, the average temperature in Altenau, Germany hovers around 12°C (54°F). Expect a range where the minimum dips to -1°C (30°F) and the maximum can rise to 28°C (83°F). With an average humidity of 75%, be prepared for some moisture in the air. Additionally, the region receives about 74 mm (2.9 in) of precipitation spread over 12 days, making it a month of varied weather.

May Temperature in Altenau

In May in Altenau, the average temperature is 12°C (54°F). The maximum can reach 28°C (83°F), and the minimum can be as low as -1°C (30°F). This diverse temperature range makes Altenau an interesting destination for travelers seeking both warmth and a chance to experience cooler weather.

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

The chart illustrates May temperature patterns in Altenau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Altenau, May typically has an average temperature of 12°C (54°F), with highs reaching up to 28°C (83°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec333439465363636456504136
Data source: Temperature data for Altenau 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 Altenau

In Altenau in May, the precipitation amount is 74 mm (2.9 in) over a span of 12 days.

May Precipitation Trends in Altenau

The chart displays monthly precipitation patterns in Altenau, 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 Altenau, May typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec737273457486877860774777
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Altenau

In Altenau in May, humidity is 75%. With an average temperature of 12°C (54°F), this humidity feels like a damp chill that seeps into your bones, making it essential to layer your clothing for comfort while exploring.

May Average Humidity in Altenau

This chart illustrates the average monthly humidity levels in Altenau, 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 Altenau is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%88%83%75%79%79%79%83%87%90%92%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Altenau

In Altenau 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 Altenau.

Maximum UV Index Levels in Altenau for May

The chart shows the monthly maximum UV Index (UVI) for Altenau 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 Altenau typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578876421
Data source: Altenau 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 Altenau Compares to Other Months

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

This table compares monthly weather conditions in Altenau, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)73 mm (2.9 inches)91%low
February Weather1°C (34°F)72 mm (2.8 inches)90%low
March Weather4°C (39°F)73 mm (2.9 inches)88%moderate
April Weather8°C (46°F)45 mm (1.8 inches)83%moderate
May Weather12°C (54°F)74 mm (2.9 inches)75%high
June Weather17°C (63°F)86 mm (3.4 inches)79%very high
July Weather17°C (64°F)87 mm (3.4 inches)79%very high
August Weather18°C (64°F)78 mm (3.1 inches)79%high
September Weather14°C (57°F)60 mm (2.4 inches)83%high
October Weather10°C (50°F)77 mm (3.0 inches)87%moderate
November Weather5°C (41°F)47 mm (1.9 inches)90%low
December Weather2°C (36°F)77 mm (3.0 inches)92%low

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