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May Weather in Grammene, Belgium

Last updated: August 22, 2025

In May, the average temperature in Grammene, Belgium hovers around 14°C (57°F), with lows reaching 0°C (32°F) and highs peaking at 30°C (86°F). Expect a precipitation amount of 63 mm (2.5 in) spread over approximately 12 days, while the air maintains a notable average humidity of 82%.

May Temperature in Grammene

In May in Grammene, the average temperature is 14°C (57°F), with maximums reaching 30°C (86°F) and minimums dipping as low as 0°C (32°F). This temperature variation makes it essential to pack both light clothing for the warmer days and warmer layers for the cooler nights when traveling to Grammene.

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

The chart illustrates May temperature patterns in Grammene, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grammene, May typically has an average temperature of 14°C (57°F), with highs reaching up to 30°C (86°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec404245505664666660544643
Data source: Temperature data for Grammene 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 Grammene

In Grammene in May, the total precipitation amount reaches 63 mm (2.5 in) over the course of 12 days.

May Precipitation Trends in Grammene

The chart displays monthly precipitation patterns in Grammene, 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 Grammene, May typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec646369406365677857855594
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Grammene

In Grammene in May, humidity is 82%. With an average temperature of 14°C (57°F), this humidity feels like a thick blanket enveloping you, making outdoor activities uncomfortable and travel more challenging due to the heavy, damp air.

May Average Humidity in Grammene

This chart illustrates the average monthly humidity levels in Grammene, 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 Grammene is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%85%82%82%80%76%82%89%92%92%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Grammene

In Grammene 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 Grammene.

Maximum UV Index Levels in Grammene for May

The chart shows the monthly maximum UV Index (UVI) for Grammene 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 Grammene typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Grammene 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 Grammene Compares to Other Months

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

This table compares monthly weather conditions in Grammene, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)64 mm (2.5 inches)91%low
February Weather6°C (42°F)63 mm (2.5 inches)89%low
March Weather7°C (46°F)69 mm (2.7 inches)87%moderate
April Weather10°C (50°F)40 mm (1.6 inches)85%moderate
May Weather14°C (57°F)63 mm (2.5 inches)82%high
June Weather18°C (64°F)65 mm (2.6 inches)82%very high
July Weather19°C (66°F)67 mm (2.6 inches)80%very high
August Weather19°C (66°F)78 mm (3.1 inches)76%high
September Weather16°C (60°F)57 mm (2.3 inches)82%moderate
October Weather12°C (55°F)85 mm (3.4 inches)89%moderate
November Weather8°C (46°F)55 mm (2.2 inches)92%low
December Weather6°C (43°F)94 mm (3.7 inches)92%low

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