August in Sainte-Foy averages a daily high of 24.3°C with nights around 14°C. Expect roughly 11.7 wet days totalling 110.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Sainte-Foy is June–September.
Based on STE FOY U. LAVAL, QC CA (0.7km), 1995–2024. 24 years of August data.