With a population of around 1,600, Primero de Mayo sits in Coahuila, Mexico. The city operates in the America/Monterrey time zone.
Recent weather here gives a sense of typical conditions: in 2025, Primero de Mayo recorded a mean annual temperature of 76°F, ranging from 27°F lows in January to 114°F highs in May, with about 7 inches of precipitation across the year.
View historical weather for Primero de Mayo · More cities in Coahuila