Overview: CuliacánCuliacán, the vibrant capital of Sinaloa, Mexico, enjoys a hot semi-arid climate with distinct wet and dry seasons. Daytime temperatures can soar high, especially from May through September, where they average above 35 °C (95 °F). Cooling down slightly in the wintertime, yet still comfortably warm, the average daytime temperature in December is 29 °C (85 °F). While the wet season peaks in August with an impressive average rainfall of 192 mm (7.56 in), the drier months like April see scant precipitation, averaging only 3 mm (0.13 in). Despite the heat, the nighttime temperatures provide a pleasant respite with a moderate range from 12 °C (53 °F) in the cooler months to a warm 25 °C (76 °F) in the wet season.