Texas in winter
We stayed in south Texas last year in Port Mansfield, which is directly on the coast just north of Brownsville. Port Mansfield has some of the finest redfishing anywhere. Lots of places to fish on free public docks, or take an inexpensive charter with a local. Port Mansfield is a very small fishing village with a couple of RV parks, seafood restaurants, and a gas/convience store. The people are friendly and helpful. We stayed at the R&R RV Park. Nothing fancy, but clean and many people come back year after year. The weather was good most days. Only a couple of really cold days. The wind blows every day! Oh, this town is on the old King Ranch property so herds of deer visited our RV site almost every evening! We bought corn to feed them. This is a place for people who want to mellow out for the winter. Think anyone who loves nature, and most particularly fishing,would enjoy it!
If you want to go back to Florida for the winter, try the Moore Haven,or Clewiston areas. Not many "high-end tourist types" and the weather is great almost everyday. Good fresh water fishing too!