The best time to trek to Everest Base Camp is during the spring (March to May) and autumn (September to November) seasons. During these times, the weather is stable, the skies are generally clear, and the moderate temperatures make it comfortable for trekking. In spring, the hills come alive with blooming rhododendrons and other wildflowers, adding beauty to the landscape. Autumn offers crisp, clear views of the mountains after the monsoon season has cleared the air of dust and pollution.
It’s better to avoid trekking during the monsoon season, from June to August, because there’s a lot of rain. The trails can become muddy and slippery, which makes walking difficult. Also, it’s not a good idea to trek in winter, from December to February, because it gets very cold. The high mountains can be very challenging in winter, and some teahouses may be closed.