evidence: Rainfall is still low, but not as low as in November, and you may encounter snow anywhere along the Everest Base Camp (EBC) trail, not just at higher altitudes. You're very likely to enjoy some beautifully crisp and clear mountain views in December. [...] As temperatures are cold in December and snowfall can be a problem, it's best to avoid alternative routes in the Everest region that require crossing high passes (such as the Three Passes Trek). Treks that stay below 13,000 feet will be safer and more comfortable, but it's essential to check (or have your guide check) the weather conditions as you progress along any trek in this area. [...] December is also an ideal time to consider treating yourself to a luxury tour—there are some lovely luxury lodges in the Everest region (such as Yeti Mountain Homes and Everest Summit Lodges) on a par with comfortable boutique accommodations in Kathmandu. While this kind of trip is special at any time of year, it's even more so in winter, when you'll especially enjoy the comfort of a warm, cozy lodge at the end of a day of walking.