December 2025 Weather Report for South Holland
December 2025 brought notably dry and sunny conditions to South Holland, with temperatures remaining close to seasonal norms despite significant fluctuations throughout the month. The province experienced a remarkable departure from typical winter precipitation patterns, making this an unusually bright and relatively dry December.
Temperature Overview
The average temperature for December reached 6.2 degrees Celsius, just 0.3 degrees below the normal value of 6.5 degrees. While this suggests near-normal conditions overall, the month featured considerable temperature variation. The warmest day occurred in Dordrecht on December 7th, when temperatures climbed to 13.9 degrees Celsius. In stark contrast, Zoetermeer recorded the month's coldest temperature of minus 4.7 degrees Celsius on December 26th, demonstrating the typical winter volatility experienced in South Holland during this period.
Precipitation Patterns
December 2025 was exceptionally dry across South Holland. The province received only 27.8 millimeters of precipitation, representing a dramatic 65 percent below the normal monthly total of 79.8 millimeters. The wettest day occurred on December 7th in Goeree-Overflakkee, which recorded 12.3 millimeters of rainfall. Notably, Goeree-Overflakkee accumulated the highest total precipitation for the month at 40.0 millimeters, yet this still remained well below seasonal expectations for the coastal region.
Sunshine and Notable Features
One of December's most striking characteristics was the abundance of sunshine. South Holland enjoyed 101.2 hours of sunshine, exceeding the normal value of 81.8 hours by 24 percent. This exceptional sunshine duration contributed to the generally pleasant conditions experienced throughout the month, despite the winter season.
The combination of below-average precipitation, above-average sunshine, and near-normal temperatures created unusual December weather for South Holland. The dry conditions persisted throughout the month, with December 7th serving as a notable transition day featuring both the warmest temperatures and the most significant rainfall event of the period.