September in Edinburg averages a daily high of 34.3°C with nights around 23.4°C. Expect roughly 6.2 wet days totalling 99.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Edinburg is November–March.
Based on EDINBURG, TX US (0.7km), 1995–2024. 16 years of September data.