April 2026 brought notably cooler and significantly drier conditions to the Belgian province of Luxembourg compared to historical averages. The month presented a stark contrast between early spring cold snaps and late-month warmth, while precipitation levels fell dramatically short of normal expectations.
Temperature Overview
The province experienced an average temperature of 7.6 degrees Celsius, running 1.1 degrees below the normal value of 8.7 degrees. This cooler-than-average pattern was particularly pronounced in early April, with Gouvy recording the month's lowest temperature of minus 2.4 degrees on April 2nd. However, conditions warmed considerably toward month's end, culminating in Aubange reaching 21.8 degrees on April 28th, marking the warmest day of the period. This 24-degree spread between the coldest and warmest temperatures illustrates the volatile nature of spring weather in Luxembourg.
Precipitation Patterns
April 2026 was exceptionally dry across the province. The average total precipitation measured just 7.6 millimeters, representing a dramatic 90 percent deficit compared to the normal April precipitation of 79.3 millimeters. Arlon emerged as the wettest location, accumulating 33.9 millimeters over the month, with a single day on April 19th accounting for 16.4 millimeters of this total. This concentration of rainfall in one event underscores how sparse precipitation was distributed throughout the month, with most days remaining dry.
Sunshine and Notable Observations
Sunshine hours were severely limited, totaling just 53.7 hours against a normal expectation of 256.3 hours—a deficit of 79 percent. This substantial shortfall in sunshine, combined with the precipitation deficit, suggests persistent cloud cover dominated much of the month despite the overall dryness. The combination of below-average temperatures, exceptionally low precipitation, and minimal sunshine created conditions quite different from typical April weather in Luxembourg, with the dry pattern being particularly unusual for a month that normally sees substantial spring rainfall.