January in Exeter averages a daily high of 9.6°C with nights around 3.8°C. Expect roughly 17.5 wet days totalling 129.8mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Exeter is June–September.
Based on SLAPTON, UK (48.8km), 1995–2024. 30 years of January data.