October in Plymouth averages a daily high of 15.5°C with nights around 9.9°C. Expect roughly 18.1 wet days totalling 115.4mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Plymouth is June–September.
Based on PLYMOUTH MOUNTBATTEN, UK (2.5km), 1995–2024. 29 years of October data.