Santa Susana is an unincorporated community located in Ventura County, California. It enjoys a Mediterranean climate, characterized by mild, wet winters and warm, dry summers. The average temperature ranges from 50°F (10°C) to 80°F (27°C), making it pleasant for outdoor activities throughout the year.

Hydrologically, Santa Susana is situated near the Santa Clara River, which provides water to the region. The area also has several creeks and streams that contribute to the local hydrology. These water sources support a diverse ecosystem and provide habitat for various plant and animal species.

Santa Susana offers numerous outdoor recreation opportunities. The surrounding hills and mountains are perfect for hiking and horseback riding, with trails winding through scenic landscapes. Additionally, the nearby Santa Susana Pass State Historic Park provides opportunities for picnicking, nature walks, and exploration of the historic Chumash village site.

Overall, Santa Susana is a beautiful community with a Mediterranean climate, abundant hydrology, and a variety of outdoor activities for nature enthusiasts to enjoy.