January in Long Beach averages a daily high of 19.8°C with nights around 8.5°C. Expect roughly 6.1 wet days totalling 71.3mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Long Beach is April–November.
Based on LONG BEACH DAUGHERTY AIRPORT, CA US (6.3km), 1995–2024. 30 years of January data.