December in Gardena averages a daily high of 19.5°C with nights around 9.6°C. Expect roughly 6.5 wet days totalling 55.7mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Gardena is April–November.
Based on HAWTHORNE MUNICIPAL AIRPORT, CA US (4.5km), 1995–2024. 27 years of December data.