32 Things You Need to Know Before Doing the Mount Everest Base Camp Trek

The weather on the trek is all over the place, which is what makes packing so difficult. You'll be freezing in the morning, hot from the sun a few minutes after you start hiking, cold again when a few clouds roll in, piling on more layers when it starts to snow, and then warm again when it stops. Layer accordingly, but don't fret about stopping to take off a jacket (or two!) to adjust to the ever-changing temperatures.