April 2025 brought notably warmer and sunnier conditions to Belgium compared to the long-term average, though precipitation fell significantly short of normal levels. The month presented a mixed weather pattern with early cold snaps giving way to increasingly warm conditions towards the end of the period.
Temperature Overview
Belgium experienced an average temperature of 11.5 degrees Celsius during April, which is 1.6 degrees above the normal value of 9.9 degrees. This positive anomaly reflects a generally mild month. The coldest reading was recorded in Bütgenbach on April 7th, reaching minus 2.2 degrees Celsius, indicating frost conditions in the higher elevations of the Ardennes region. In stark contrast, the warmest temperature of the month occurred in Berlaar on April 30th, climbing to 27.7 degrees Celsius, demonstrating the significant warming trend as spring progressed.
Precipitation Patterns
April proved to be considerably drier than average, with only 31.5 millimeters of precipitation recorded across Belgium compared to the normal 68.5 millimeters. This represents a 54 percent deficit from typical April rainfall. The wettest single day occurred in Stavelot on April 24th, when 19.3 millimeters fell. However, the location receiving the most total precipitation during the month was Vielsalm, accumulating 81.6 millimeters, primarily concentrated in the eastern Ardennes region.
Sunshine and Notable Features
One of April's most striking characteristics was the abundance of sunshine. Belgium recorded 313.6 hours of sunshine, representing an 18 percent increase above the normal value of 265.7 hours. This exceptional sunshine contributed significantly to the warmer-than-average temperatures and created favorable conditions for spring vegetation development.
The month displayed considerable regional variation, with the Ardennes experiencing notably wetter conditions than the rest of the country, while the Flemish plains enjoyed drier, sunnier weather. The transition from cool early-April conditions to warm late-April weather was particularly pronounced, with the final day of the month bringing summer-like warmth to parts of Flanders.