December 2025 in Groningen: A Dry and Sunny Month
December 2025 proved to be a notably dry month across the province of Groningen, with precipitation levels significantly below normal and above-average sunshine hours. The month presented a mixed weather pattern, ranging from mild conditions in early December to notably cold temperatures towards the end of the year.
Temperature Overview
The average temperature for December in Groningen reached 5.6 degrees Celsius, which is marginally below the normal value of 5.7 degrees Celsius, resulting in a minor anomaly of -0.1 degrees. The warmest day of the month occurred on December 10th in Stadskanaal, where temperatures climbed to 13.0 degrees Celsius, providing a brief mild spell during the early part of the month. In stark contrast, the coldest conditions arrived towards the end of December, with Stadskanaal recording a minimum temperature of -5.9 degrees Celsius on December 26th, marking a significant temperature drop during the post-Christmas period.
Precipitation and Rainfall
December 2025 was exceptionally dry, with an average total precipitation of just 36.4 millimeters across the province. This represents a dramatic 55 percent decrease compared to the normal December precipitation of 80.1 millimeters. The wettest day of the month occurred on December 7th in Stadskanaal, which received 10.8 millimeters of rainfall. The city of Groningen recorded the highest total precipitation for the month at 46.6 millimeters, though this still remained well below seasonal expectations.
Sunshine and Notable Features
One of the most striking features of December 2025 was the exceptional sunshine duration. The province experienced 85.4 hours of sunshine, representing a 20 percent increase above the normal value of 71.4 hours. This surplus of sunshine, combined with the dry conditions, created a relatively clear month despite the winter season.
The temperature range throughout December was substantial, with a difference of approximately 19 degrees Celsius between the warmest and coldest days, illustrating the variable nature of winter weather in Groningen during this period.