In Sinaloa, the wet season is oppressive and mostly cloudy, the dry season is partly cloudy, and it is hot year round. Over the course of the year, the temperature typically varies from 54°F to 97°F and is rarely below 48°F or above 101°F.
The hot season lasts for 5.5 months, from May 3 to October 21, with an average daily high temperature above 94°F. The hottest day of the year is June 19, with an average high of 97°F and low of 77°F.
The cool season lasts for 2.4 months, from December 6 to February 19, with an average daily high temperature below 85°F. The coldest day of the year is January 22, with an average low of 54°F and high of 82°F.