September in Tulsa averages a daily high of 29.8°C with nights around 17.4°C. Expect roughly 7.1 wet days totalling 87.8mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Tulsa is March–May.
Based on TULSA INTERNATIONAL AIRPORT, OK US (11.4km), 1995–2024. 30 years of September data.