Weather Report: Groningen, June 2025
June 2025 brought a notably wet month to the province of Groningen, with precipitation levels significantly exceeding seasonal norms. While temperatures remained close to historical averages, the combination of above-normal rainfall and variable weather patterns created a distinctly changeable month across the northern Netherlands.
Temperature Overview
The average temperature for June reached 16.8 degrees Celsius, marginally above the normal value of 16.5 degrees, representing an anomaly of just 0.3 degrees. Despite this modest overall warming, the month experienced considerable temperature fluctuations. The warmest day occurred on June 14 in Stadskanaal, where temperatures climbed to 30.2 degrees Celsius, providing a taste of early summer warmth. In stark contrast, the coldest reading of the month was recorded on June 20, also in Stadskanaal, dropping to just 7.8 degrees Celsius. This substantial temperature range of over 22 degrees illustrates the variable nature of early summer weather in Groningen.
Precipitation Patterns
Rainfall proved to be the defining characteristic of June 2025 in Groningen. The province received an average total of 104.5 millimeters, substantially exceeding the normal June precipitation of 75.7 millimeters. This represents a significant anomaly of 38 percent above normal, indicating a considerably wetter than average month. The wettest single day occurred on June 8 in the city of Groningen, where 32.5 millimeters fell. The city of Groningen itself emerged as the wettest location for the month, accumulating 116.7 millimeters of rain.
Sunshine and Notable Observations
Sunshine hours totaled 378.3 hours across the month, marginally exceeding the normal value of 372.8 hours by approximately 1 percent. This near-normal sunshine duration, combined with above-average rainfall, created typical early summer conditions with frequent cloud cover and rainy periods interspersed with brighter spells.