January in Sacramento averages a daily high of 14.1°C with nights around 5.5°C. Expect roughly 11.1 wet days totalling 98.6mm. 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 January data.