Rio Frio is a small unincorporated community located in Real County, Texas. Known for its picturesque landscapes and natural beauty, the climate in Rio Frio is typically hot and humid during the summer months, with temperatures frequently reaching over 90°F (32°C). Winters are mild to cool, with temperatures averaging in the 40s°F (4-9°C). The area receives an average annual rainfall of around 30 inches.

Hydrologically, Rio Frio is situated near the Frio River, from which the community derives its name. The Frio River is a popular destination for outdoor enthusiasts, offering opportunities for swimming, tubing, kayaking, and fishing. The crystal-clear waters of the river provide a refreshing escape from the Texas heat.

Surrounded by the Texas Hill Country, Rio Frio also offers excellent opportunities for hiking, camping, and wildlife viewing. Visitors can explore the scenic Garner State Park, located nearby, with its numerous nature trails and camping facilities. Additionally, the Lost Maples State Natural Area, famous for its vibrant fall foliage, is within driving distance from Rio Frio, providing further outdoor recreation options.