Mera Peak Climb via Zatra La Pass in January

Zatra La on day four is the month’s first real obstacle. The 1,600m climb out of Chutang usually meets snow from partway up, sometimes knee-deep after a fresh storm, and the crossing that takes six to seven hours in October can run longer here. Once over, the descent to Khartitang and the drop to Kothe the following day put 1,300m back under your boots fast, which is the whole point of sleeping low after a high pass in the cold.

Above Khare the glacier itself often climbs better in January than it does in April. Cold keeps the ice hard and the crevasse bridges frozen tight, and the short fixed-line section on the final snow dome below the summit is usually clean rope over consolidated snow rather than the softer, wetter version spring sometimes serves up. Mera peak winter climbing difficulty is less about the glacier itself and more about staying warm and fed through a cold night and a longer, harder summit day than the same route runs in autumn. The skills session at Base Camp still runs as it does the rest of the year, though your climbing Sherpa usually keeps it shorter and gets everyone moving again before hands go numb standing still.

This is the quietest the Hinku Valley gets. Kothe and Thangnak keep their lodges open through winter, generally with the fewest rooms made up and the dining stove doing double duty as the only heat in the house. Khare’s rental shacks thin out their stock in the cold months, one more reason to sort crampons and boots in Thamel first. You are unlikely to share the trail, or the fixed line on the dome, with anyone outside your own group.

January is one of the easier months to actually reach Lukla, with flights operating directly from Kathmandu rather than the Ramechhap shuttle that peak season demands. Demand is low enough that seats open on short notice, though cold morning fog at both ends and wind at the airstrip cost hours more often than they cost days. Build one buffer day on each side of the trek and treat the built-in day 12 spare day at Khare as a second line of defence against a delayed summit window, not just a flight.