October in Nanaimo averages a daily high of 12.7°C with nights around 9.3°C. Expect roughly 16 wet days totalling 98.6mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Nanaimo is July–August.
Based on ENTRANCE ISLAND, BC CA (10.6km), 1995–2024. 27 years of October data.