Weather Report: Groningen, January 2026
January 2026 brought notably colder conditions to the province of Groningen compared to historical averages. The month was characterized by below-normal temperatures, increased precipitation, and reduced sunshine, creating a typical winter pattern for the northern Netherlands.
Temperature Overview
The average temperature for January reached 0.5 degrees Celsius, which was 2.8 degrees below the normal average of 3.3 degrees Celsius. This significant negative anomaly reflects a colder-than-usual month across the province. The temperature range was considerable, with the coldest reading of -10.4 degrees Celsius recorded in Eemsdelta on January 11th. In contrast, the warmest day occurred in Stadskanaal on January 17th, when temperatures climbed to 10.6 degrees Celsius, demonstrating the variability typical of winter weather patterns.
Precipitation Patterns
Rainfall during January totaled 88.6 millimeters on average, exceeding the normal monthly precipitation of 82.0 millimeters by approximately 8 percent. Eemsdelta emerged as the wettest location, recording a total of 96.2 millimeters throughout the month. The most intense rainfall occurred on January 2nd, when Eemsdelta received 17.1 millimeters in a single day, making it the wettest day of the month.
Sunshine and Notable Observations
Sunshine hours totaled 97.6 hours for the month, falling 15 percent short of the normal 114.4 hours. This reduction reflects the cloudier conditions that prevailed during January, which is consistent with the increased precipitation recorded across the province. The combination of colder temperatures, wetter conditions, and reduced sunshine created a distinctly gray and damp winter month for Groningen residents.