West Hills, located in the heart of the San Fernando Valley in California, offers a pleasant Mediterranean climate characterized by hot, dry summers and mild, wet winters. Summers often see temperatures reaching the mid-90s°F (mid-30s°C) with low humidity, while winters see average temperatures in the mid-60s°F (around 18°C). The area receives most of its annual rainfall between November and March, with an average around 15 inches per year.

Hydrologically, West Hills is primarily influenced by the Los Angeles River and its tributaries. These water sources are vital to the area's water supply and support a diverse range of plant and animal life. Additionally, the region has reservoirs and groundwater basins that contribute to its water resources.

Outdoor enthusiasts can take advantage of several recreational opportunities in West Hills. The area boasts numerous parks and nature preserves, providing hiking and biking trails amidst beautiful landscapes. Chatsworth Reservoir and Upper Las Virgenes Canyon Open Space Preserve are popular destinations for outdoor activities like fishing, picnicking, horseback riding, and wildlife observation. West Hills is also conveniently located near the Santa Monica Mountains, offering opportunities for hiking, camping, and enjoying breathtaking views of the surrounding area.