Ocotillo, California is a small desert community located in the eastern part of San Diego County. It is characterized by a desert climate with hot summers and mild winters. The area receives very little rainfall, with an average annual precipitation of around 2-3 inches.

Hydrologically, Ocotillo is part of the desert ecosystem and is not near any major bodies of water. The region is dry and arid, with limited water resources.

Despite its harsh climate, Ocotillo offers various outdoor recreation opportunities. The nearby Anza-Borrego Desert State Park provides ample opportunities for hiking, camping, and exploring the unique desert landscape. Visitors can enjoy off-roading on designated trails, wildlife watching, and stargazing in the clear night skies. Ocotillo is also close to the Salton Sea, a large saline lake that offers fishing, boating, and birdwatching.