September in Salem averages a daily high of 25°C with nights around 10.3°C. Expect roughly 6.8 wet days totalling 40.6mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Salem is June–September.
Based on SALEM AIRPORT MCNARY FIELD, OR US (5km), 1995–2024. 30 years of September data.