September in Surrey averages a daily high of 21.4°C with nights around 11.2°C. Expect roughly 9.3 wet days totalling 78.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Surrey is July–September.
Based on CLOVERDALE EAST, BC CA (9.2km), 1995–2024. 28 years of September data.