Daytime temperatures in the panhandle, northwest and northeast central portions of Texas average 40 to 45 degrees F in winter. Central Texas averages around 45 degrees F and south Texas and the gulf coast have temperatures of 50 to 55 degrees F.
Many areas in south Texas have yet to be developed, especially in the coastal region. Many locations offer free winter camping for both tent and RV dwellers, according to frugal-rv-camping.com.
Many of the state parks are open year-round and permit camping during the winter months, according to Take In Texas.
Take in Texas suggests dressing in layers during Texas winters and bringing a warm stocking cap, two pairs of socks and waterproof boots.
The South Plains area is a popular winter camping area because of its subtropical climate. Many "winter Texans" return each year to this area, according to Camping in Texas.
The Rio Grande Valley is the intersection of many migratory bird routes. Winter campers will enjoy this bird-watcher's paradise during the migratory season.