JLo, this is an international forum so which particular winter are you meaning, ( Guessing northern hemisphere)
So some thoughts , Sri Lanka has two,distinct season, the Weligama side and the Arugam Bay side, , unusual to,be able to do both!
The month you go will determine a lot of things, swell, and most importantly winds!
Different set for each season.
November to March is the time for SW Side, at either end the quality time lessens!
Join the European winter refugees!
Weligama and Mirrisa are within easy reach of each other, and quite few surf schools, so lots of learning traffic, but at your stage safety !
That side is more suited to your needs.
A land of great Buddhist culture and fish curries

I've taken up troll hunting just for fun, instead of a rifle I'll just use a pun! 冲浪爷爷