December in Sacramento averages a daily high of 14°C with nights around 5.2°C. Expect roughly 10.6 wet days totalling 97.2mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Sacramento is April–May.
Based on SACRAMENTO 5 ESE, CA US (7.2km), 1995–2024. 30 years of December data.