September in Richmond averages a daily high of 20.7°C with nights around 10.1°C. Expect roughly 9.8 wet days totalling 72.5mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Richmond is June–September.
Based on RICHMOND NATURE PARK, BC CA (2.7km), 1995–2024. 25 years of September data.