January in Littlehampton averages a daily high of 8.5°C with nights around 3.6°C. Expect roughly 16.1 wet days totalling 82.6mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Littlehampton is June–September.
Based on EASTBOURNE, UK (58.3km), 1995–2024. 27 years of January data.