Martinez is a city in the San Francisco Bay Area, and the county seat of Contra Costa County, California. The population at the 2010 census was 35,824. The downtown is noteworthy for its large number of old buildings and antique shops that have been restored. Martinez is located in the San Francisco Bay Area on the south shore of the Carquinez Strait, immediately facing downtown Benicia and the southeastern end of Vallejo, California.
Martinez has a moderate climate in the Mediterranean (Csa / b of the Köppen climate classification). Summers are warm and dry, during sea breezes, with some morning fog. The maritime effect is slightly less important than in other areas of the Bay Area that are closer to the Ocean, creating very high daytime temperatures relative to San Francisco and Oakland in summer. Nights normally cool down slightly, however, resulting in daytime highs of about 87 ° F (31 ° C) and nighttime lows of 55 ° F (13 ° C) in July and August, respectively. Winters are hot and cool with occasional frost. Most of the town lies within a 9b USDA hardiness zone.
The Martinez Unified School District covers much of Martinez and comprises four primary schools, one middle school, one high school and two alternatives / independent study schools. K-5 students attend John Swett, John Muir, Las Juntas, or primary school in Morello Park. Martinez Junior High School serves Grades 6 through 8 students. St. Catherine of Siena is a private Catholic school where grades K-8 are served. Alhambra High School serves as a comprehensive high school for the area. As of 2006, the K-12 enrollment for the district had been 4,194. The Mount Diablo Unified School District covers most of Martinez, whose Hidden Valley Elementary School is located in Martinez.St. Catherine of Siena School (Martinez, California), a private Roman Catholic elementary, also serves the Martinez community.