About San Ignacio Rio Muerto, Sonora

San Ignacio Rio Muerto, in Sonora, Mexico, is home to roughly 7,700 people in the America/Hermosillo time zone at 27.4°N latitude.

Recent weather here gives a sense of typical conditions: in 2025, San Ignacio Rio Muerto recorded a mean annual temperature of 77°F, ranging from 41°F lows in January to 108°F highs in July, with about 16 inches of precipitation across the year.