January in Eastleigh averages a daily high of 8.9°C with nights around 1.5°C. Expect roughly 15.8 wet days totalling 94.6mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Eastleigh is June–September.
Based on HURN, UK (39.9km), 1995–2024. 30 years of January data.