September in Gastonia averages a daily high of 28.3°C with nights around 17.2°C. Expect roughly 6.9 wet days totalling 96.7mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Gastonia is April–May.
Based on GASTONIA, NC US (4km), 1995–2024. 30 years of September data.