Winter holidays can be a great time to get away. It will allow you to enjoy summer in Brittan (or what little summer weather we have) and give you something to look forward to later on.
If you are looking for a winter holiday then you can often save a huge amount of money travelling in the first three weeks of December. If you leave travel until Christmas and/or new year then you are likely to see a massive price increase.
If you are looking for a winter sun holiday then going during early December will not only save you money but will allow you to experience many locations during the quitter period where many beaches are deserted and planes only half full.
The Caribbean is often a popular destination in winter as you are unlikely to see temperatures any lower than 20C. If you travel before the 15th December the price is often half of that to travel and stay over the Christmas period.