January in Rotherham averages a daily high of 7.2°C with nights around 2.2°C. Expect roughly 16.9 wet days totalling 75.5mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Rotherham is June–September.
Based on SHEFFIELD, UK (10.4km), 1995–2024. 30 years of January data.