September in Providence averages a daily high of 23.9°C with nights around 13.8°C. Expect roughly 9.1 wet days totalling 107.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Providence is May–September.
Based on RHODE ISLAND T.F. GREEN INTERNATIONAL AIRPORT, RI US (11.4km), 1995–2024. 30 years of September data.