The phrase "winter sun" refers to the sunlight during the winter season. It highlights the specific characteristics of the sun during this time, such as it being lower in the sky and having a softer, warmer glow. Full definition
Plus, thanks to the excellent choice of all inclusive and package holidays available, it's also a surprisingly affordable option for winter sun. (loveholidays.com)
You may go on the odd winter sun holiday, but how about skipping the sun? (lifeasabutterfly.com)
In the depths of winter the sun never rises, giving the few hours of daylight the constant orange glow of sunset around the horizon. (theexpeditioner.com)