San Martin topographic map
Interactive map
Click on the map to display elevation.
About this map
Due to the moderating influence of the Pacific Ocean, San Martin enjoys a warm, Mediterranean climate. Temperatures range from an average midsummer maximum of 90.2°F (32.3°C) to an average midwinter low of 33.6 °F (0.9 °C). Average annual rainfall is 480 mm (18.9 in), and the summer months are typically dry. Snowfall is rare, about once every 20 years, and is light and short-lived when it occurs. Summer months are characterized by coastal fog which arrives from the ocean around 10 p.m. and dissipates the next morning by 10 a.m. Winter months have many sunny and partly cloudy days, with frequent breaks between rainstorms. The local terrain is inconducive to tornadoes, severe windstorms and thunderstorms. The local climate supports chaparral and grassland biomes, with stands of live oak at higher elevations.