July in Nogales averages a daily high of 34.5°C with nights around 19.7°C. Expect roughly 15.4 wet days totalling 111.3mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Nogales is February–April.
Based on NOGALES INTERNATIONAL AIRPORT, AZ US (15.4km), 1995–2024. 25 years of July data.