About San Fernando, Tamaulipas's Climate & Weather History

San Fernando, in Tamaulipas, Mexico, is home to roughly 29,200 people in the America/Monterrey time zone at 24.8°N latitude.

In 2025, San Fernando recorded an average annual temperature of 76°F. The hottest temperatures reached 99°F in May; the coolest were 30°F in January. Total precipitation for the year was 25 inches, with the wettest month being September.