June 2025 brought warmer than average conditions to Belgium, with temperatures exceeding seasonal norms and above-normal sunshine hours. The month was characterized by variable weather patterns, including a significant heat event toward the end of the period and below-average precipitation across most regions.
Temperature Overview
Belgium experienced an average temperature of 18.8 degrees Celsius during June, which is 0.9 degrees above the normal value of 17.9 degrees. The warmest temperature recorded was 33.9 degrees Celsius in Eupen on June 22, while the coldest reading of 4.7 degrees Celsius occurred in Waimes on June 9. This significant temperature range of approximately 29 degrees reflects the variable nature of early summer weather patterns across the country.
Precipitation Patterns
June saw below-average rainfall, with a total of 54.8 millimeters compared to the normal 62.0 millimeters, representing a 12 percent deficit. The wettest single day occurred on June 15 in Attert, which received 32.0 millimeters of precipitation. When examining regional variations, Meix-devant-Virton recorded the highest monthly total of 119.8 millimeters, indicating that rainfall was unevenly distributed across Belgium.
Sunshine and Notable Events
Sunshine hours totaled 378.0 hours during the month, exceeding the normal value of 362.2 hours by 4 percent. This above-average sunshine contributed to the warmer conditions experienced. A significant weather event marked the end of June, as a moderate heat wave developed on June 28 and extended into early July, affecting multiple locations including Aartselaar, Antwerpen, Boechout, Boom, and Borsbeek, with a duration of five days.