July in Centennial averages a daily high of 31.1°C with nights around 15.2°C. Expect roughly 9.5 wet days totalling 50.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Centennial is May–June.
Based on DENVER CENTENNIAL AIRPORT, CO US (3.2km), 1995–2024. 27 years of July data.