September 2025 in Zeeland: A Cooler and Drier Month Than Average
September in the Dutch province of Zeeland presented a mixed weather pattern, with temperatures running slightly below normal while sunshine hours matched seasonal expectations. The month saw considerable variation between early warmth and late-season cooling, alongside notably reduced precipitation compared to historical averages.
Temperature Overview
The average temperature for September 2025 in Zeeland reached 15.8 degrees Celsius, falling 1.1 degrees below the normal average of 16.9 degrees. This cooler-than-average trend was driven by a significant temperature range throughout the month. The warmest day occurred on September 7 in Terneuzen, when temperatures climbed to 30.3 degrees Celsius, providing a brief taste of summer warmth. In stark contrast, the coldest reading came late in the month on September 28, also in Terneuzen, when temperatures dropped to just 5.8 degrees Celsius, signaling the transition toward autumn conditions.
Precipitation Patterns
September proved notably drier than typical for the region. Total precipitation averaged 48.2 millimeters, representing a substantial 38 percent below the normal monthly total of 77.4 millimeters. The wettest day of the month occurred early on September 3 in Middelburg, which recorded 20.5 millimeters of rainfall. Across the month, Middelburg emerged as the wettest location in the province, accumulating 62.1 millimeters of total precipitation.
Sunshine and Notable Observations
Sunshine hours in Zeeland during September totaled 279.3 hours, matching the normal expectation of 279.4 hours almost precisely. This balanced sunshine, combined with the drier conditions, created favorable conditions for outdoor activities during much of the month, despite the cooler-than-average temperatures. The significant temperature swing between the warmest and coldest days underscores September's transitional character as summer gradually yields to autumn across the province.