September in Tyler averages a daily high of 31.5°C with nights around 19.8°C. Expect roughly 6.3 wet days totalling 76.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Tyler is March–April.
Based on TYLER, TX US (5.7km), 1995–2024. 30 years of September data.