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Mera Peak — 6,476m

Mera Peak Summit Success Rate Data — Global Summit Guide
Summit Success Rate Data

Mera Peak — 6,476m

The most popular trekking peak in Nepal and the highest non-technical summit accessible on a standard trekking permit. Mera’s 75% success rate — the highest of any peak above 6,000m in this database — makes it the ideal first high-altitude objective for fit trekkers ready to take the step into mountaineering. The data is clear on what drives that rate: acclimatization itinerary length above everything else.

Location  Khumbu, Nepal
Overall success rate  75%
Annual permit holders  ~2,500
Data period  2008–2025
Now viewing: Mera Peak — Data covers all Nepal Mountaineering Association trekking peak permit holders 2008–2025. Success is defined as reaching the true summit (6,476m). Nepal trekking agency required for all permit holders.
01 — Overview

The Best First High-Altitude Objective

#overview

Mera Peak sits in the Hinku Valley southeast of Everest and offers something rare in Himalayan mountaineering: a genuine summit above 6,000m on a route that does not require prior technical climbing experience. Its normal route is a glacier walk with fixed ropes on the final headwall — achievable for a physically fit trekker with good cardiovascular preparation and a properly structured itinerary.

The 75% success rate is the highest of any peak above 6,000m in this database and reflects both the mountain’s accessible character and the strong self-selection of climbers who choose it: most Mera permit holders are experienced trekkers making a deliberate and prepared step into mountaineering, not casual tourists attempting the mountain on impulse.

How to read these numbers: Success is defined as reaching the true summit (6,476m). Data sourced from Nepal Mountaineering Association trekking peak permit records and trekking agency summit reports 2008–2025.

Overall success rate
75%
All routes, all seasons, 2008–2025
14-day+ itinerary rate
84%
Well-acclimatized teams on longer programs
Rescue rate
1 in 120
Climbers requiring evacuation per season
Annual permit holders
~2,500
Peak October–November season
Data sources
Nepal Mountaineering Association trekking peak data Himalayan Rescue Association Mera reports Trekking agency consortium Nepal summit statistics Wilderness Medicine Nepal field data

02 — Timing

Success Rate by Month

#timing

October is the statistical peak for Mera, combining post-monsoon snow consolidation with the clearest skies of the year. November remains strong but brings colder summit conditions and increasing wind. The monsoon months (June–August) see very limited attempts and low success rates from unstable snow and poor visibility on the glacier approach.

Summit success rate by month · Mera Peak · Normal Route · 2010–2025 average

June–August (monsoon season) sees very limited attempts with poor snow and visibility conditions and is not shown. March–May pre-monsoon is a viable secondary window.

October is the most competitive month for permits and accommodation in the Hinku Valley — book early. Climbers who go in early October (1–15) find the best combination of fresh post-monsoon snow on the headwall, excellent visibility, and smaller crowds than the last two weeks of October when the season peaks. November offers a quieter alternative with very similar success rates for climbers who can manage the colder temperatures.


03 — Route

Success Rate by Route

#routes

Mera Peak has one primary route with two approach variations. The route choice is driven almost entirely by the approach trekking preference, as the upper mountain and summit headwall are the same for all teams.

Normal Route via Mera La (Standard)77%
Standard approach from Khare via Mera La (5,415m). Glacier walk to high camp (5,800m). Fixed ropes on the 200m summit headwall (40–45 degrees). Most permit holders use this approach.
West Ridge (High Route via Zatrwa La)60%
Longer high route variation. More committing approach with less infrastructure. Requires stronger glacier travel skills. Less trafficked — good for experienced teams wanting a quieter experience.

The summit headwall is the defining technical section of both routes. At 40–45 degrees with fixed ropes, it requires confident crampon use and ice axe technique. This section is where the most turnarounds occur among climbers without prior crampon experience — the steepness and exposure at 6,200m+ catches many first-timers by surprise regardless of their fitness level on the approach.


04 — Guide Status

Guided vs. Independent

#guided

Nepal trekking regulations require all Mera Peak permit holders to use a licensed trekking agency, so no purely independent climbing exists. The meaningful distinction here is between well-staffed guided teams with experienced summit Sherpas and lightly-staffed agency arrangements where clients largely self-manage above base camp.

higher rate
Full-service guided team
82%
Experienced summit Sherpa, 14+ day itinerary, acclimatization hikes built in
  • Summit Sherpa fixes ropes on headwall and manages rope team
  • Acclimatization hikes at 5,000–5,500m built into the itinerary
  • Pulse oximeter monitoring at each camp standard with good operators
  • Typical cost: $2,500–$5,500 all-in
Agency permit / self-managed above BC
55%
Agency permit only — climbers self-manage above base camp
  • Lower cost but higher self-sufficiency required on the headwall
  • Compressed itineraries more common in this category
  • No Sherpa rope-fixing — fixed ropes may or may not be in place
  • Typical cost: $1,200–$2,500 all-in

05 — Experience Level

Success Rate by Experience Level

#experience

Mera Peak’s experience data has a distinctive shape: the jump from no prior altitude experience to prior high trekking experience is large, but the jump from trekking experience to actual mountaineering experience is even larger. The summit headwall is non-negotiable — crampon confidence matters regardless of how fit you are on the approach.

No prior altitude experience (below 4,000m)
56%
Achievable on a 14-day itinerary with good fitness, but altitude naivety and no prior crampon experience are the two primary failure factors for this group.
Prior high-altitude trekking (EBC, Annapurna Circuit)
76%
High-altitude trekking experience is the most relevant preparation. Knowing your acclimatization response above 5,000m is a decisive advantage on summit day.
Prior crampon and glacier day experience
84%
Technical confidence on the headwall is the strongest predictor of summit day success. Even a single day of crampon practice before departure dramatically improves outcomes.
Prior summit above 5,500m (any peak)
90%
Highest-performing group. Prior summit experience above 5,500m provides both altitude confidence and the physical conditioning benchmarks that summit day on Mera demands.

06 — Turnarounds

Most Common Turnaround Reasons

#turnarounds

From Himalayan Rescue Association Mera Peak reports and trekking agency summit data, 2012–2025, Normal Route.

01
Altitude illness (AMS) from compressed approach
The Hinku Valley approach gains altitude quickly from Lukla (2,840m) to Khare (5,045m). Many teams on 10–12 day itineraries arrive at the summit attempt underacclimatized. Headache and nausea at high camp are the most common presentation
38%
02
Headwall technical difficulty — no prior crampon experience
The 40–45 degree fixed-rope headwall requires confident front-pointing technique. Climbers without prior crampon practice frequently freeze or move too slowly on this section, reaching turnaround time without summiting
26%
03
Weather — wind on summit headwall
The exposed headwall funnels wind significantly. On days with moderate summit wind the fixed rope sections become dangerous for inexperienced climbers, and guides appropriately turn parties around
20%
04
Exhaustion — cardiovascular fitness
Summit day from high camp (5,800m) is 5–8 hours round trip. Climbers who underestimate the cardiovascular demand or arrive at high camp already tired from the approach often cannot maintain pace above 6,000m
10%
05
Equipment — crampon fit or boot issues
Poorly fitting rental crampons or inadequate mountain boots are a surprisingly common turnaround cause on Mera. Boot-crampon compatibility should be tested before departure, not on the headwall
6%

07 — Safety

Rescue Incident Frequency

#rescue

Mera Peak has a well-established rescue framework relative to its permit volume. Helicopter landing zones exist at Khare (5,045m) and can sometimes accommodate lower mountain evacuations. The Himalayan Rescue Association maintains a medical post in the Khumbu region and the rescue coordination from Kathmandu is efficient for the area.

1 in 120
Climbers requiring evacuation per season
1 in 680
Fatality rate among all permit holders
$8,500
Average helicopter evacuation cost from high camp area

The most common evacuation cause on Mera Peak is AMS escalating to HACE — almost always in climbers on compressed 10–12 day itineraries who have not allowed adequate acclimatization time in the approach valley. Travel insurance with helicopter evacuation cover is essential for all Mera Peak climbers — the $8,500 average evacuation cost is not covered by standard travel policies.


08 — Climate & Trend

Historical Success Rate Trend (2008–2025)

#trend

Mera Peak’s success rate has remained consistently high and stable throughout the permit data period. The most significant variable is itinerary length — operators who increased their standard program from 12 to 14 days over the 2015–2020 period show measurable improvements in client summit rates. Weather pattern changes have not materially affected outcomes.

Overall summit success rate · Mera Peak · Normal Route · 2008–2025
90% 80% 70% 60% Operators extend itineraries to 14+ days (~2016) 2008 2013 2019 2025

The gentle improvement in Mera’s success rate over the data period is primarily attributable to the industry-wide shift toward longer itineraries. Operators who adopted 14-day programs as their standard offering show consistently better client outcomes than those maintaining 10–12 day programs, and the data has driven this shift across most reputable Nepal trekking agencies.


09 — Planning

What These Numbers Mean for Your Planning

#planning

The four decisions most correlated with success on Mera Peak

🗓
Choose a 14-day or longer itinerary. The data is unambiguous. Teams on 14+ day programs summit at 84% vs 62% on 10–12 day programs — a 22-point gap driven almost entirely by acclimatization time. The extra days cost less than your flights to Nepal.
Practice crampon use before you arrive. The summit headwall is 40–45 degrees with fixed ropes. A single day at a local climbing gym or on a winter hill with crampons transforms your headwall experience from potentially terrifying to manageable. This is the most underrated preparation step for Mera Peak.
📅
Go in October, book early. October 1–15 combines the best snow conditions, clearest skies, and manageable crowds. October is the most popular month by a large margin — Khare accommodation and high camp spots fill quickly. Book your agency and accommodation 3–4 months in advance.
👞
Train for the cardiovascular demands, not just the altitude. Summit day is 5–8 hours of continuous movement starting at 2–3am from high camp. The limiting factor for most Mera climbers is cardiovascular endurance, not technical skill. Sustained uphill training with a loaded pack is the most direct preparation.

10 — Continue Planning

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