December in Spijkenisse averages a daily high of 7.2°C with nights around 2.1°C. Expect roughly 17.6 wet days totalling 84.1mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Spijkenisse is May–September.
Based on ROTTERDAM, NL (15.2km), 1995–2024. 30 years of December data.