Mathis is a small city located in southern Texas, United States. It falls under the subtropical climate zone, characterized by hot and humid summers and mild winters. The average annual temperature ranges from 63°F to 96°F, with July being the hottest month and January the coldest. Summers are accompanied by occasional thunderstorms, while winters are generally dry.

Hydrologically, Mathis is surrounded by various bodies of water. The city lies near the Nueces River, which provides opportunities for fishing, boating, and kayaking. Lake Corpus Christi, located just northwest of Mathis, offers recreational activities such as swimming, water skiing, and camping. The lake is also popular for its diverse bird species, making it a haven for birdwatchers.

Mathis is home to several parks and nature reserves, including Lake Corpus Christi State Park and Mathis Nature Park. These areas provide opportunities for hiking, picnicking, and wildlife viewing. Mathis is also known for its annual Jim Wells County Fair and Rodeo, which showcases rodeo events, carnival rides, and live music.

In conclusion, Mathis, Texas, experiences a subtropical climate, offering residents and visitors opportunities for outdoor recreation through its proximity to water bodies like the Nueces River and Lake Corpus Christi.