May Weather in Longlier, Belgium

Last updated: August 22, 2025

In May, the average temperature in Longlier, Belgium hovers around 12°C (55°F). Expect minimums dipping to -1°C (31°F) and soaring highs of 30°C (86°F). Be prepared for some wet weather as 82 mm (3.2 in) of precipitation typically falls over 14 days, while the average humidity remains relatively high at 81%.

May Temperature in Longlier

In May in Longlier, the average temperature is 12°C (55°F), with maximums reaching up to 30°C (86°F) and minimums dropping as low as -1°C (31°F). Be sure to pack clothing for a range of temperatures to enjoy your visit comfortably.

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

The chart illustrates May temperature patterns in Longlier, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Longlier, May typically has an average temperature of 12°C (55°F), with highs reaching up to 30°C (86°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec353842485463646458514138
Data source: Temperature data for Longlier 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 Longlier

In Longlier in May, the precipitation amount is 82 mm (3.2 in) spread over 14 days.

May Precipitation Trends in Longlier

The chart displays monthly precipitation patterns in Longlier, 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 Longlier, May typically receives around 82 mm (3.2 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec92911034782847371739579149
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Longlier

In Longlier in May humidity is 81%. With an average temperature of 12°C (55°F), this humidity feels like a damp blanket enveloping you, making outdoor activities feel heavier and encouraging frequent breaks to hydrate and cool off while traveling.

May Average Humidity in Longlier

This chart illustrates the average monthly humidity levels in Longlier, 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 Longlier is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%88%84%81%82%82%80%83%89%91%93%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Longlier

In Longlier 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 Longlier.

Maximum UV Index Levels in Longlier for May

The chart shows the monthly maximum UV Index (UVI) for Longlier 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 Longlier typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234689886421
Data source: Longlier 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 Longlier Compares to Other Months

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

This table compares monthly weather conditions in Longlier, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)92 mm (3.6 inches)91%low
February Weather3°C (38°F)91 mm (3.6 inches)90%moderate
March Weather6°C (42°F)103 mm (4.1 inches)88%moderate
April Weather9°C (48°F)47 mm (1.8 inches)84%high
May Weather12°C (55°F)82 mm (3.2 inches)81%very high
June Weather17°C (63°F)84 mm (3.3 inches)82%very high
July Weather18°C (65°F)73 mm (2.9 inches)82%very high
August Weather18°C (65°F)71 mm (2.8 inches)80%very high
September Weather14°C (58°F)73 mm (2.9 inches)83%high
October Weather10°C (51°F)95 mm (3.8 inches)89%moderate
November Weather5°C (42°F)79 mm (3.1 inches)91%low
December Weather3°C (38°F)149 mm (5.9 inches)93%low

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