December in Daly City averages a daily high of 14.9°C with nights around 7.7°C. Expect roughly 12.3 wet days totalling 123.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Daly City is June–October.
Based on SAN FRANCISCO OCEANSIDE, CA US (4.6km), 1995–2024. 20 years of December data.