January 2026 Weather Report for Brussels Hoofdstedelijk Gewest
January 2026 brought notably milder conditions to Brussels Hoofdstedelijk Gewest compared to historical averages. The month was characterized by above-normal temperatures, reduced precipitation, and enhanced sunshine, creating a relatively pleasant winter period for the Belgian capital region.
Temperature Overview
The average temperature for January reached 3.8 degrees Celsius, exceeding the normal value of 2.9 degrees by 0.9 degrees. This positive anomaly indicates a warmer-than-typical month across the province. The temperature range was substantial, with the coldest reading of -4.4 degrees Celsius recorded in Sint-Lambrechts-Woluwe on January 10th, while the warmest temperature of 12.2 degrees Celsius was measured in Oudergem on January 17th. This 16.6-degree spread demonstrates the variability typical of winter weather patterns in the region.
Precipitation Patterns
January proved to be significantly drier than normal, with an average total precipitation of 78.3 millimeters compared to the historical normal of 108.5 millimeters. This represents a 28 percent deficit in rainfall. The wettest day occurred in Oudergem on January 9th, when 25.4 millimeters of precipitation fell. Across the province, Ukkel recorded the highest total precipitation for the month at 87.1 millimeters, indicating some variation in rainfall distribution across different locations.
Sunshine and Notable Conditions
Sunshine hours exceeded expectations, with 115.9 hours recorded against a normal value of 103.0 hours, representing a 13 percent surplus. This above-average sunshine contributed to the generally pleasant character of the month despite winter conditions.
The combination of warmer temperatures, reduced precipitation, and increased sunshine made January 2026 a notably mild and relatively dry winter month for Brussels Hoofdstedelijk Gewest, departing from typical January weather patterns in several significant ways.