December in Wilmington averages a daily high of 19°C with nights around 8.2°C. Expect roughly 5.9 wet days totalling 61.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Wilmington is April–November.
Based on TORRANCE AIRPORT, CA US (7.6km), 1995–2024. 27 years of December data.