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May Weather in Rillaar, Belgium

Last updated: August 22, 2025

In May, the average temperature in Rillaar, Belgium is a pleasant 14°C (57°F). However, temperatures can vary significantly, with a minimum of 1°C (33°F) and a maximum of 31°C (89°F). Expect about 63 mm (2.5 in) of precipitation over 12 days, and the air tends to be quite humid, with an average humidity level of 82%.

May Temperature in Rillaar

In May in Rillaar, the average temperature is 14°C (57°F). Maximum temperatures can reach 31°C (89°F), while the minimum can drop as low as 1°C (33°F). Be prepared for a wide range of temperatures during your travels, as layering is advisable to ensure comfort in varying weather conditions.

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

The chart illustrates May temperature patterns in Rillaar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rillaar, May typically has an average temperature of 14°C (57°F), with highs reaching up to 31°C (89°F) and lows dropping to around 1°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec394245505765676660544542
Data source: Temperature data for Rillaar 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 Rillaar

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

May Precipitation Trends in Rillaar

The chart displays monthly precipitation patterns in Rillaar, 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 Rillaar, May typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec647173346373797857825696
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Rillaar

In Rillaar 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 Rillaar

This chart illustrates the average monthly humidity levels in Rillaar, 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 Rillaar 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 Rillaar

In Rillaar 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 Rillaar.

Maximum UV Index Levels in Rillaar for May

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

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

This table compares monthly weather conditions in Rillaar, 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 Weather5°C (42°F)71 mm (2.8 inches)89%low
March Weather7°C (46°F)73 mm (2.9 inches)87%moderate
April Weather10°C (51°F)33 mm (1.3 inches)85%moderate
May Weather14°C (57°F)63 mm (2.5 inches)82%high
June Weather19°C (66°F)73 mm (2.9 inches)82%very high
July Weather19°C (67°F)79 mm (3.1 inches)80%very high
August Weather19°C (67°F)78 mm (3.1 inches)76%high
September Weather16°C (60°F)57 mm (2.2 inches)82%moderate
October Weather12°C (55°F)82 mm (3.2 inches)89%moderate
November Weather7°C (46°F)56 mm (2.2 inches)92%low
December Weather6°C (42°F)96 mm (3.8 inches)92%low

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