October 2025 Weather Summary for South Holland
October in South Holland proved to be a slightly cooler and considerably wetter month than average, with temperatures running just below normal and precipitation significantly exceeding seasonal expectations. The month displayed typical autumn characteristics, with variable conditions and a notable lack of sunshine compared to historical averages.
Temperature Overview
The average temperature for October in South Holland reached 12.4 degrees Celsius, falling 0.4 degrees below the normal value of 12.8 degrees. This modest cooling was distributed across the province, though variations were observed between locations. The warmest day of the month occurred in Waddinxveen on October 7th, when temperatures climbed to 17.9 degrees Celsius. In contrast, the coldest conditions were recorded in Gouda on October 25th, where temperatures dropped to 5.8 degrees Celsius, illustrating the significant temperature range typical of autumn weather patterns.
Precipitation Patterns
Rainfall was notably abundant throughout October, with the province receiving an average total of 139.6 millimeters, representing a 16 percent increase above the normal monthly precipitation of 120.5 millimeters. The wettest single day occurred in Nieuwkoop on October 4th, when 32.8 millimeters of rain fell. When examining total monthly accumulation by location, Leiden emerged as the wettest area, recording 178.8 millimeters of precipitation for the month.
Sunshine and Notable Conditions
Sunshine hours fell short of expectations, with the province recording 156.3 hours compared to the normal value of 173.1 hours, representing a 10 percent deficit. This reduction in sunshine is characteristic of autumn months in the Netherlands, when cloud cover and shorter daylight hours become increasingly prevalent. The combination of above-average rainfall, below-average sunshine, and slightly cooler temperatures created typical autumn conditions across South Holland during October 2025.