September in Rio Rancho averages a daily high of 30.8°C with nights around 13.7°C. Expect roughly 5.9 wet days totalling 24.7mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Rio Rancho is March–May.
Based on RIO RANCHO NUMBER 2, NM US (3.4km), 1995–2024. 17 years of September data.