August in Mazatlán averages a daily high of 34°C with nights around 25°C. Expect roughly 13.3 wet days totalling 230.8mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Mazatlán is December–April.
Based on COLONIA JUAN CARRAS, MX (2.4km), 1995–2024. 22 years of August data.