Two other “busy times” for camping in southern Texas - Thanksgiving weekend and the week after Christmas.
Most years the weather is cool, but not cold. I’ve been unable to book anything south of Fairfield on those weekends in the past.
Those two weekends are usually fully booked at Big Bend NP and Davis Mountains SP.
In case the OP isn’t aware - watch out for winter Texans. We love our yankee friends who spent the winters in Texas (and many folks enjoy their dollars even more).
One membership campground that I belong to on Lake Conroe has all their long term sites booked every year Nov-Mar.
if the OP is thinking it will be a pleasant weekend down on Galveston Island or near Freeport, even as far west as Corpus - be wary in the winter. Do some recon trips to see which CG are full and which are available.
Remember we have four seasons in Texas, sometimes all four in the same day.
One year Christmas can be cold and wet, and two days later 75-80 and sunny, of the reverse.
Houston all year is a very difficult- “the weekend forecast looks good, let’s go out with the camper” location. The city of Houston with over 3 million and almost 7.8 million people in the region means a heck of a lot of other people will have the same idea. Prior planning is essential most of the time.
And yes, two ACs/50 amp is pretty much essential for summer camping in Texas. It isn’t so much that the daytime highs are so bad. But the night time lows can be near or above 80 degrees for weeks in the summer. The trailer/RV never gets a chance to cool off.
Full-Time 2014 - ????
“Not all who wander are lost.”
"You were supposed to turn back at the last street."
2012 Ram 2500 Mega Cab
2014 Flagstaff 832IKBS TT