December in Velsen-Zuid averages a daily high of 7.6°C with nights around 3.1°C. Expect roughly 18.1 wet days totalling 83.1mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Velsen-Zuid is June–September.
Based on WIJK AAN ZEE, NL (6km), 1995–2024. 24 years of December data.