Smartville is a small town located in Yuba County, California. The climate in Smartville is classified as Mediterranean, characterized by hot, dry summers and mild, wet winters. Summers are typically sunny with temperatures ranging from the mid-80s to low 100s Fahrenheit, while winters are cooler with temperatures averaging in the 50s.

The town's hydrology is primarily influenced by the Yuba River, which runs nearby. The river provides opportunities for boating, fishing, and swimming. Additionally, Smartville is surrounded by beautiful lakes and reservoirs, including Englebright Lake and Collins Lake, offering further water-based recreation such as kayaking, water skiing, and paddleboarding.

Outdoor enthusiasts can also explore the surrounding rugged landscapes, including the nearby Sierra Nevada Mountains, which provide ample opportunities for hiking, mountain biking, and camping. The region is home to numerous trails, such as the Yuba Rim Trail, which offers stunning views of the Yuba River Canyon.

In summary, Smartville, California offers a Mediterranean climate, influenced by the nearby Yuba River, providing a range of outdoor recreation opportunities including water-based activities on the river and nearby lakes, as well as hiking and camping in the surrounding mountains.