Keltys, Texas is a small community located in Angelina County, in the eastern part of the state. It experiences a humid subtropical climate characterized by hot and humid summers and mild winters. Summers in Keltys are typically hot with temperatures often exceeding 90°F (32°C), while winters are mild with temperatures averaging around 50°F (10°C). The area receives a moderate amount of rainfall throughout the year, with May being the wettest month.

In terms of hydrology constituents, Keltys is situated near the Neches River, one of the major waterways in Texas. This provides residents and visitors with opportunities for various water-based activities such as fishing, boating, and kayaking. The river also supports diverse aquatic wildlife and creates scenic landscapes for nature enthusiasts.

For outdoor recreation, Keltys offers several options. The nearby Angelina National Forest provides opportunities for hiking, camping, and wildlife watching. The forest is home to various species of plants and animals, including white-tailed deer, wild turkey, and bald eagles. Additionally, residents can enjoy outdoor sports like golfing at nearby courses or explore the numerous parks in the area, which offer amenities like playgrounds, picnic areas, and walking trails.