By Everest Tourist · Published
Best time to trek Everest Base Camp: spring or autumn?
Spring and autumn are the main trekking windows. Start with October–November for post-monsoon visibility, then compare spring storms, winter cold and monsoon disruption before fixing dates.
Choose autumn for visibility; consider spring as the other main window
The best time to trek Everest Base Camp is usually spring or autumn. If clear mountain views are your first priority, October and November are the strongest starting point: Nepal Tourism Board identifies these as the months with the clearest post-monsoon skies. Spring is the other main trekking season, but rain and snowstorms can still affect a trip. These are seasonal tendencies, not a forecast for Lukla, Namche or Gorak Shep on your dates. Choose a window that suits your tolerance for cold and disruption, and keep the return journey flexible. No season guarantees a flight or an uninterrupted trek.
Nepal Tourism Board: seasons and post-monsoon visibilityThe seasonal trade-offs
Scroll sideways to compare every column.
| Compare | When to consider it | What could change your decision |
|---|---|---|
| Spring | One of Nepal Tourism Board’s two main trekking seasons; an alternative if autumn dates do not work. | Seasonal rain and snowstorms remain possible. Do not book on the assumption that spring means dry trails throughout. |
| October–November | The clearest post-monsoon skies in Nepal Tourism Board’s climate guidance; the first window to compare for mountain views. | Cold and sudden weather changes still matter at high elevations. A clear-weather tendency does not prove Lukla flight reliability. |
| December–February | A winter option requiring a specific plan for cold and shorter days. | Northern Nepal has severe winters. Bright sunshine does not remove snow, cold or operating constraints. |
| June–September and the monsoon transition | Only consider with a realistic plan for rain-related disruption; not the default choice for a first trek built around clear views. | Cloud, rain and disruption to access journeys can undermine a fixed itinerary. The end of the monsoon is not a guaranteed calendar date. |
October or November? Do not invent precision
Nepal Tourism Board supports October and November as a clear-sky window, but its guidance does not establish that one particular week is best for the whole Base Camp route. Do not turn a national seasonal pattern into a promised daily temperature, snowfall total or flight success rate. If your main constraint is cold, compare the actual equipment and overnight arrangements offered for your proposed dates. Kathmandu’s forecast is not a substitute for conditions farther up the route: Nepal Tourism Board notes that mountainous areas can fall below freezing. A comfortable arrival day tells you little about an upper-valley night.
Nepal Tourism Board: climate varies with elevationSpring: allow for rain and snowstorms
Spring is a reasonable alternative to autumn when your leave dates are fixed, but it is not a storm-free season. Nepal Tourism Board’s trekking guidance specifically notes seasonal rain and snowstorms in spring. For a proposal that includes Kala Patthar or a pass crossing as well as Base Camp, identify those objectives separately. Do not assume every excursion remains feasible just because the main trek is sold in spring. Confirm the current route plan and what the provider will change if conditions deteriorate, rather than paying for an unconditional promise to reach every landmark.
Nepal Tourism Board: seasonal trekking conditionsMonsoon dates need more caution than a four-season chart suggests
Nepal Tourism Board places the main monsoon rainfall in June–September. FCDO uses a broader normal hazard window of June–October and warns that flooding and landslides can close roads or cut off settlements. The two descriptions are a reason to allow for seasonal transitions, not to assume that 1 October brings an automatic improvement. This matters even if you fly to Lukla: your wider journey can include road transfers. Check current forecasts and access conditions for the whole trip. A change from air to road transport does not make weather disruption disappear.
FCDO: monsoon and transport disruptionLukla flights can fail in the preferred season too
FCDO says poor weather can delay high-mountain internal flights and cancellations are common. Its advice does not provide monthly on-time statistics for Lukla, so this guide does not rank the seasons by a made-up flight success percentage. Separate the scheduled return from the international flight home. Keep money available for additional nights and ask what happens to the trekking plan if departure is delayed. Reducing acclimatisation time is not an automatic solution to a lost transport day.
FCDO: high-mountain flight cancellationsCheck the flight before booking the transfer
Seasonal advice cannot establish your departure airport. Use the dated booking to distinguish Kathmandu from Ramechhap and confirm both flight legs before arranging ground transport.
Lukla flight booking and airport checksDecide how much flexibility you can afford
Compare changeable onward travel, additional accommodation and an accessible disruption reserve. If your dates have no room to change, consider a different objective rather than relying on a preferred month to remove the risk.
What to do if a Lukla flight is delayed or cancelled