Located in Southern California, San Bernardino is a city known for its diverse climate, hydrology constituents, and abundant outdoor recreation opportunities. The city experiences a Mediterranean climate with hot, dry summers and mild, wet winters. Summers can see temperatures soaring above 100°F, while winters are typically mild with temperatures averaging around 60°F. The region enjoys plenty of sunshine throughout the year.

Hydrologically, San Bernardino is influenced by the nearby San Bernardino Mountains and the Santa Ana River. The mountains provide a source of fresh water and contribute to the city's abundant water supply. The Santa Ana River, flowing nearby, offers opportunities for various water-based activities such as fishing, boating, and kayaking.

San Bernardino boasts numerous outdoor recreation opportunities. The nearby San Bernardino National Forest provides access to hiking, camping, and picnicking. The surrounding mountains offer opportunities for skiing and snowboarding during the winter months. The city also has numerous parks and trails, perfect for walking, jogging, or biking. The Glen Helen Regional Park is a popular destination for outdoor enthusiasts, offering fishing, swimming, and a variety of recreational activities.

With its favorable climate, hydrological features, and diverse outdoor recreation opportunities, San Bernardino is a great destination for nature lovers and those seeking an active lifestyle.