September in Saint Clair Shores averages a daily high of 23.4°C with nights around 13.2°C. Expect roughly 8.3 wet days totalling 81.5mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Saint Clair Shores is May–September.
Based on GROSSE POINTE FARMS, MI US (9.9km), 1995–2024. 28 years of September data.