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May Weather in Ulmen, Germany

Last updated: August 23, 2025

In Ulmen, Germany, the average temperature in May is a mild 12°C (55°F). However, prepare for a range of weather as temperatures can dip to a chilly -1°C (31°F) or soar to a warm 30°C (87°F). Expect about 73 mm (2.9 in) of precipitation spread over 13 days, contributing to an average humidity of 77%. Whether you’re enjoying the cool breeze or the warmth of the sun, this month has a little something for everyone!

May Temperature in Ulmen

In May in Ulmen, the average temperature is 12°C (55°F). Maximum temperatures can reach 30°C (87°F), while minimums can drop as low as -1°C (31°F). This varied climate makes Ulmen an intriguing destination to pack for all weather conditions during your travels.

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

The chart illustrates May temperature patterns in Ulmen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ulmen, May typically has an average temperature of 12°C (55°F), with highs reaching up to 30°C (87°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec353742485463646457504138
Data source: Temperature data for Ulmen 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 Ulmen

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

May Precipitation Trends in Ulmen

The chart displays monthly precipitation patterns in Ulmen, 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 Ulmen, May typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec636072387378756853595194
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Ulmen

In Ulmen in May humidity is 77%. With an average temperature of 12°C (55°F), this humidity feels like an enveloping dampness that can make outdoor activities a bit uncomfortable, causing travelers to feel slightly sticky and less energized.

May Average Humidity in Ulmen

This chart illustrates the average monthly humidity levels in Ulmen, 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 Ulmen is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%87%84%77%74%72%71%81%88%91%92%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Ulmen

In Ulmen 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 Ulmen.

Maximum UV Index Levels in Ulmen for May

The chart shows the monthly maximum UV Index (UVI) for Ulmen 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 Ulmen typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234589876421
Data source: Ulmen 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 Ulmen Compares to Other Months

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

This table compares monthly weather conditions in Ulmen, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)63 mm (2.5 inches)91%low
February Weather3°C (38°F)60 mm (2.3 inches)90%moderate
March Weather5°C (42°F)71 mm (2.8 inches)87%moderate
April Weather9°C (48°F)38 mm (1.5 inches)84%moderate
May Weather12°C (55°F)73 mm (2.9 inches)77%very high
June Weather17°C (64°F)78 mm (3.1 inches)74%very high
July Weather18°C (65°F)75 mm (3.0 inches)72%very high
August Weather18°C (65°F)68 mm (2.7 inches)71%high
September Weather14°C (58°F)53 mm (2.1 inches)81%high
October Weather10°C (51°F)59 mm (2.3 inches)88%moderate
November Weather5°C (42°F)51 mm (2.0 inches)91%low
December Weather3°C (38°F)94 mm (3.7 inches)92%low

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