Best Time to Trek Everest Base Camp (2026)
Best time to trek Everest Base Camp is the seasonal window that lines up the clearest mountain visibility, the most stable Lukla flight operations, and the least extreme overnight cold, and for most trekkers that means spring or autumn.
Peak Season
Mar-May & Oct-Nov
Coldest Night
About -22°C, Gorak Shep
Warmest Day
About 19°C, Lukla
Rainiest Months
Jun-Sep
Spring (March to May) and autumn (October and November, with September as a transition month) are the two peak trekking windows for the Everest Base Camp Trek, matching the Nepal Tourism Board's listing. Both deliver daytime temperatures of roughly 8-15°C at Namche Bazaar (3,440 m) and steadier Lukla flying than the monsoon, while winter and monsoon each trade one advantage for a real cost.
Spring and autumn aren't identical, and the difference matters for planning. Spring adds Everest's climbing season and blooming rhododendron forest below Namche. Autumn runs slightly drier and colder, with clear post-monsoon skies, and inside that window October and November aren't interchangeable: October is the busiest month on the trail, while November usually has similar weather with a thinner crowd. The season-by-season breakdown below covers all four seasons, plus that October-versus-November distinction. For the full route and permit picture beyond season, see the complete Everest Base Camp Trek guide.
The Trekking Calendar at a Glance
Twelve months sort into three practical categories: peak season (March to May, October and November), shoulder season (September, December through February), and monsoon (June to August, with rain often lingering into September).
- Peak season
- Shoulder season
- Monsoon
Temperature by Month and Altitude
Temperature on the Everest Base Camp Trek depends on altitude as much as season. The gap between Lukla (2,860 m) and Gorak Shep (5,164 m) runs about 15°C on the same calendar day, which is why a single expected-temperature figure for the whole trek is close to meaningless. The chart below breaks daytime highs and nighttime lows across four altitude tiers, from Lukla and Phakding up to Gorak Shep and Kala Patthar, for every month of the year. These are planning estimates rather than station records, since no long-term weather record was available to check them.
For the same figures as a month-by-month table in °C and °F, with rain, snow and live-forecast sources, see Everest Base Camp weather by month.
January is the coldest month at altitude, with Gorak Shep nights estimated around −22°C, while July and August are the mildest, with Lukla days reaching about 19°C even as monsoon soaks the lower trail. Pack for the coldest night of your specific itinerary’s highest camp, not for the average conditions of the month as a whole. See the packing and gear guide for a full cold-weather kit list.
Season by Season
Spring (March–May)
Spring brings clear mountain views early in the season alongside blooming rhododendron forest below Namche Bazaar. Daytime temperatures at Namche Bazaar (3,440 m) typically reach 10°C in March, climbing to 15°C by May, and nights drop below freezing through March and into April. Gorak Shep (5,164 m) nights fall to −16°C in March and warm only to around −10°C by May. This is also the Everest climbing season, adding a lively Base Camp atmosphere with expedition teams alongside trekking groups. April in particular is the month most trekking operators recommend to first-timers specifically: the trail is fully open, expedition activity at Base Camp is in full swing, and daytime temperatures are milder than March without yet carrying May’s pre-monsoon haze.
Autumn (September–November)
Autumn is usually the most reliable season for stable weather and Lukla flights, once the monsoon's rains have cleared the dust from the air. September is the transition: the Nepal Tourism Board counts it as part of the rainy season, and heavy snow hit the upper Khumbu in late September 2026. Namche Bazaar daytime temperatures sit around 8-12°C through the season, and Gorak Shep nights fall from −9°C in September to −18°C by November. Visibility is typically best in October and November. October carries the reputation as the single best month for weather, but it's also the most crowded: Dashain and Tihar send domestic travellers onto the trail alongside foreign trekkers, and popular teahouses at Namche, Dingboche, and Gorak Shep fill early. November usually keeps October's clarity with a thinner crowd and, at some operators, slightly lower rates, which is why repeat trekkers often choose it.
Autumn storms now recur often enough to plan for. A storm in late October 2026 led the Department of Tourism to urge trekkers to avoid high-altitude areas and closed Lukla for two days, and Cyclone Montha closed Lukla in November 2025. Keep buffer days at the end of any autumn trip, and take local advice before going higher after heavy snow.
Winter (December–February)
Winter often has very clear skies but the coldest nights of any season. Gorak Shep can drop to −20°C or colder in January, and Namche Bazaar nights regularly fall to −10°C to −12°C. Trail and teahouse crowds drop dramatically, though some higher lodges reduce services or close entirely above Lobuche. Our guide to trekking to Everest Base Camp in winter covers gear, lodge closures and what the cold means day to day.
Monsoon (June–August)
Monsoon brings daily afternoon rainfall, leech activity at lower elevations, and more Lukla flight cancellations than any other season, driven by persistent cloud cover rather than wind. Namche Bazaar stays a humid 17-18°C by day, and views above Tengboche are frequently obscured by afternoon cloud build-up. Most trekkers avoid this window entirely, and the road alternative doesn't help: the By Road itinerary isn't passable in monsoon because of road conditions in the lower hills.
Rainfall & Mountain Visibility
Rainfall on the Everest Base Camp Trek concentrates in the four rainy months. June through September brings rain on most afternoons at lower elevations, typically starting after midday and clearing by evening, while spring sees only occasional short showers and autumn is usually dry between storms. Winter stays dry too, though higher camps above Dingboche can pick up sudden snowfall even during an otherwise clear week.
Morning visibility beats afternoon visibility on almost every day of the year, since cloud builds up from the valleys as the day warms regardless of season. The classic early climb of Kala Patthar (5,644 m) for Everest photographs is timed around this, since afternoon cloud regularly blocks the summit view.
October and November offer the strongest combination of clear skies and mild-enough temperatures for extended photography stops at viewpoints like Kala Patthar and Everest View Hotel. Winter mornings can be even clearer, but the cold cuts photography sessions short fast.
Crowds & Trail Traffic
Trail and teahouse crowds track the peak-season calendar, not weather quality alone. Spring and autumn both see the Everest Base Camp Trek at its busiest, with Namche Bazaar, Dingboche, and Gorak Shep filling toward capacity around Nepal's Dashain and Tihar festivals in October and during the spring climbing season in late April and May, when independent trekkers without a confirmed room can struggle to find space. Storms add to this: after trekkers waited out about three days of snow and rain in early November 2026, the trail from Dingboche to Gorak Shep was badly congested.
Guided trekkers rarely feel this pressure directly, since their guide or agency arranges rooms along the route. Independent trekkers travelling in peak weeks should phone ahead to the busiest stops where they can, or plan to arrive early in the afternoon, before rooms fill for the night.
Winter and monsoon trails run close to empty by comparison. Rooms are available first-come, first-served at lodges that stay open, and popular viewpoints like Kala Patthar can be climbed without another trekker in sight. That quiet comes at the cost of colder nights in winter and near-daily rain in monsoon, covered above.
Frequently Asked Questions
Weather & Temperature
April edges out the rest of the calendar for first-time trekkers: trails are fully open, expedition teams are active at Base Camp, and days are milder than March without May's pre-monsoon haze. October is autumn's equivalent peak, with clear post-monsoon skies, but it's also the busiest month on the trail. November usually has similar visibility with thinner crowds, which is why repeat trekkers often prefer it, though late-season storms do happen, so keep buffer days in any autumn plan.
Crowds & Trail Traffic
Rain, Snow & Visibility