Autumn or Spring for Everest and Annapurna? The Honest 2026 Season Verdict

Clearer skies and safer flights in autumn, warmer nights and rhododendrons in spring — here's which season actually fits your Everest Base Camp or Annapurna Base Camp trek.

LR By Laxman Rawal · Jul 22, 2026 · 4 min read · Updated Jul 22, 2026

Autumn or Spring for Everest and Annapurna? The Honest 2026 Season Verdict

If you can only trek Nepal once, should you fly in during October or April? Short answer: autumn (October to November) gives you the clearest skies and the most reliable flights; spring (March to May) gives you warmer days on the lower trail and rhododendron forests in full bloom — but for Annapurna specifically, spring is now the more crowded season, not autumn. Here is the real, numbers-based trade-off for Everest Base Camp (EBC) and Annapurna Base Camp (ABC).

Key facts

Post-monsoon autumn (Oct-Nov) delivers Nepal's clearest, driest air — the reason it's the classic 'best season' for both EBC and ABC.
At Everest Base Camp elevation, October highs run roughly 5°C falling to about -9°C at night; by November daytime highs hover around freezing, with nights of -15°C or colder.
Up to 40-50% of Lukla flights are delayed or cancelled during the June-August monsoon; cancellations become rare once autumn's dry weather sets in through October.
Annapurna's single busiest month in 2025 wasn't October — it was April, with 44,763 foreign visitors, part of a record 246,575 for the region Jan-Oct.

Everest Base Camp: autumn's edge is the sky and the flights

Everest sits behind Nuptse and Lhotse from most of the trail, so what you're really trekking toward is a wall of 7,000-8,000m peaks — and how clearly you see them depends entirely on the air. Autumn's post-monsoon atmosphere has just been rinsed by three months of rain, and the result is the sharpest long-distance visibility of the year: Ama Dablam, Everest's summit pyramid and the Nuptse-Lhotse wall typically stand out crisp and close from Kala Patthar. Spring's views are still good above 4,000m, but pre-monsoon haze and agricultural burning in the lowlands can soften the lower-elevation shots through Namche and Tengboche.

The bigger practical factor is Lukla. Tenzing-Hillary Airport is a single short runway on a mountainside, and its flights live and die by visibility. Through the June-August monsoon, cloud cover regularly grounds 40-50% of scheduled flights. That risk falls sharply once the monsoon breaks in mid-September — by October, flights run close to daily, and the main annoyance is a same-day delay while morning cloud burns off, not a cancelled day. Spring flights are similarly stable from March through May, so if flight reliability is your only concern, autumn and spring are close to a tie — it's monsoon and deep winter you actually need to avoid.

5°C/-9°CEBC-area high/low, October

-10°C/-15°CEBC-area high/low, November

40-50%Lukla flights hit by monsoon cancellations

44,763Annapurna visitors in April 2025 alone

Side by side: EBC in autumn vs spring

Everest Base Camp — season comparison
Factor	Autumn (Oct-Nov)	Spring (Mar-May)
Visibility	Best of the year, especially Oct	Good above 4,000m; hazier below
Daytime temp at altitude	-5°C to 5°C	0°C to 8°C, milder
Night temp at altitude	-10°C to -15°C (colder by Nov)	-5°C to -10°C
Trail scenery	Dry, brown-gold hillsides	Rhododendron forests in bloom (Mar-Apr)
Lukla flight risk	Low, occasional delay	Low, occasional delay
Crowds	Busy, especially late Oct-Nov	Busy, especially April

Annapurna's twist: spring, not autumn, is now the crowd peak

This is the fact most guidebooks miss. Annapurna Conservation Area entry data for 2025 shows the single heaviest month for foreign arrivals was April — 44,763 trekkers — out of a record 246,575 for the January-October period. That means if solitude matters more to you than temperature, late November (after Tihar, before the cold deepens) is a genuinely quieter window on the Annapurna side than the headline 'October is peak season' advice suggests. For the shorter, lower-altitude Annapurna Base Camp trek, spring's warmer nights below 3,000m are also a real comfort gain that autumn can't match.

What this means for trekkers

Pick autumn if a clear, close-up view of Everest or the Annapurna Sanctuary is your priority — October especially is the sharpest-sky month of the year. Pick spring if you run cold at altitude, want rhododendron forests on the lower Annapurna trail, or want to dodge Annapurna's April crowd peak by shifting to early March or late May. Either season, book your Lukla flight and teahouses ahead — the truly quiet months left are really just December and midsummer, and both come with real downsides (deep cold or monsoon rain).

The verdict, by trekker type

First-timer wanting the classic postcard view: October, for Everest or Annapurna. Nothing beats the clarity.
Trekker who feels the cold badly: Spring (April-May) for Annapurna's lower elevations; November is genuinely harsh by night above 4,000m.
Photographer chasing flowers, not peaks: Late March-April, for the Annapurna rhododendron belt between Chhomrong and Bamboo.
Trekker who hates crowds: Late November on Annapurna (after the April and October peaks); early December on Everest before teahouses start closing.

Whichever season you choose, our month-by-month breakdown covers the rest of the year in more depth. Ready to lock in dates? Our 14-day Everest Base Camp trek and 9-day Annapurna Base Camp trek both run through autumn and spring with fixed and private departures.

Source: Travel And Tour World, Annapurna Conservation Area visitor arrivals report, 2025.

Cover photo: Clinton Weaver via Pexels (Pexels License).

Source: Travel And Tour World

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