Hubby and I went to Sharm last April and had fabulous holiday so decided to return for the new year, I did ask regarding what the weather would be like and several people told me I would need a cardie etc for evening..........so thats exaclty what we took. We love the sun so day 1 down to the beach by lunch time we were wrapped in towels with spare sunbeds upended to stop the wind and the sea was very cold lol, I had to buy t-shirts as I only had 1 with short sleeves rest vest tops
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I also had to buy some tights which was a task in itself for new years eve as the gala dinner was semi outside. The weather did pick near the end of holiday but we didnt get much sunbathing in.
If I was you I would take light jacket and trouser for the evening.
Hope this doesnt put people off
Enjoy