August in Nanaimo averages a daily high of 21°C with nights around 16°C. Expect roughly 5.4 wet days totalling 19.5mm. Comfortable conditions for being outdoors all day.
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 August data.