nomadseason

April Weather in Arlon, Belgium

Last updated: August 22, 2025

In April, the average temperature in Arlon, Belgium hovers around 9°C (48°F). You can expect chilly nights with a minimum temperature of -3°C (27°F), while daytime highs can reach up to 26°C (79°F). The region experiences 46 mm (1.8 in) of precipitation spread over 10 days, and the air remains quite humid, with an average humidity level of 84%.

April Temperature in Arlon

In April in Arlon, the average temperature is 9°C (48°F). Maximums can reach 26°C (79°F), while minimums can plummet as low as -3°C (27°F). Be prepared for a wide range of temperatures when traveling to Arlon during this month.

April Weather in Arlon: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Arlon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arlon, April typically has an average temperature of 9°C (48°F), with highs reaching up to 26°C (79°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec353842485463646457504138
Data source: Temperature data for Arlon generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Arlon

In Arlon in April, the precipitation amount is 46 mm (1.8 in) over the course of 10 days.

April Precipitation Trends in Arlon

The chart displays monthly precipitation patterns in Arlon, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Arlon, April typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec8184934682887672728974136
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Arlon

In Arlon in April, humidity is 84%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that envelops you, making it essential to dress in layers and stay active, as the moisture in the air can quickly lead to discomfort while traveling.

April Average Humidity in Arlon

This chart illustrates the average monthly humidity levels in Arlon, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Arlon is approximately 84%, 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 April generated using information from the Copernicus Climate Change Service.

April UV Index in Arlon

In Arlon in April, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Arlon, you can refer to this Hourly UV Index in Arlon.

Maximum UV Index Levels in Arlon for April

The chart shows the monthly maximum UV Index (UVI) for Arlon in April, 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 April, the maximum UV index in Arlon typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234689886421
Data source: Arlon April 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 April Weather in Arlon Compares to Other Months

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

This table compares monthly weather conditions in Arlon, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)81 mm (3.2 inches)91%low
February Weather3°C (38°F)84 mm (3.3 inches)90%moderate
March Weather6°C (42°F)93 mm (3.7 inches)88%moderate
April Weather9°C (48°F)46 mm (1.8 inches)84%high
May Weather12°C (55°F)81 mm (3.2 inches)81%very high
June Weather17°C (63°F)88 mm (3.5 inches)82%very high
July Weather18°C (65°F)76 mm (3.0 inches)82%very high
August Weather18°C (64°F)72 mm (2.8 inches)80%very high
September Weather14°C (58°F)72 mm (2.8 inches)83%high
October Weather10°C (51°F)89 mm (3.5 inches)89%moderate
November Weather5°C (42°F)74 mm (2.9 inches)91%low
December Weather3°C (38°F)136 mm (5.3 inches)93%low

Compare Arlon's Climate with Cities Worldwide