When is the best time of year to visit Everest Base Camp?

We often get asked when is the best time of year to trek to Everest Base Camp?

We’re glad you’re looking to go trekking in the Himalaya! The Evertrek Yetis hold this part of the world very dear to our hearts - especially Nepal! We want each and every trekker who comes along with us to have the best possible time on their trekking adventure, so with that in mind - let’s talk dates! The date you pick for your EBC trek will depend on a few factors. Are you into crowds, or are you looking for a quieter trekking experience? Are you dependent on school breaks? Are you interested in meeting future Everest summiters? Are you into festivals? That’s a lot to consider, so we’ll make it a bit easier for you - When thinking about the best time to go to Everest Base Camp, one of the first things to think about is the weather!

What is the Weather Like on the Everest Base Camp Trek?

Temperatures in the Everest Region can range from -20°C (-4°F) in the Winter months, to as high as around 20°C (68°F) in the Autumn and Spring. With so much variability, it’s important to have weather in mind when picking a trip date!If you are looking to trek during the warmer months, we suggest picking a date in the Spring or early Autumn season. During these times the precipitation is limited and day temperatures will be mild to warm. If you’re trekking in Spring and Autumn you will probably see quite a few t-shirts out on the trails! If you are looking for a colder mountain experience, late Autumn and Winter are your best bet. If you’re looking to add that extra bit of challenge to the EBC experience, trekking in the colder months will definitely do it! Day temperatures are still pretty comfortable, with sunny skies on most days, but you will 100% notice the cold at night. Winter temperatures in the Everest region can go well below freezing, and it’s not uncommon to notice temperatures as low as -20°C (-4°F) near Everest Base Camp.

When is the best time of year to meet Everest summiters?

Spring is a great time to meet fellow trekkers who are making summit attempts, as Spring has some of the best weather for summit success. Specifically, May is a great month to meet some future summiters.

The summit of Everest might be the windiest place on earth -with hurricane force winds at the summit on over 50% of days during the windiest months. From the middle of October until the start of April the summit is subjected to winds that are almost continually in excess of 74 mph which is equivalent to a Category 1 Hurricane. During the winter, wind chill adjusted temperatures at the summit are as low as -70C (-90F) and exposed skin would be frostbitten almost instantaneously at this temperature. Lower wind speeds and warmer temperatures are what’s needed to make an Everest expedition possible, and there is only a relatively short climbing window in which these conditions are present each year. These conditions can typically be achieved in the month of May, which means that May is the most popular time to trek for those attempting to summit.


When is Everest Base Camp Busy, and When is it Quiet?

The Everest Base Camp trek is one of the most popular treks in the world, so it’s a safe bet to say that there will be plenty of people around, whether you trek during Winter, Autumn, or Spring. However, there are times during the year where the trek is most popular, and this will help you to determine when you should go.

As mentioned above, Spring (and May in particular) is the most popular time for those looking to summit Everest, so there will be plenty of excitement in the air during this time. If you are looking to meet as many people as possible, hear some great stories, and make connections with those who will shortly find their way to the top, this is the time for you! 

If you are looking to do the trip when there are less people about, then consider trekking to Everest Base Camp in the late Autumn and Winter months. As mentioned above, these times are much colder and so the trek takes an extra bit of determination to complete.

You will definitely still meet some great fellow trekkers along the way, but it will be a bit quieter than the busy Spring and Autumn months.

The weather and climate of Mt Everest is one of extremes. Temperatures at the summit are never above freezing and during January temperatures can drop as low as -60° C (-76° F). Despite the low temperatures the biggest issue faced by climbers are hurricane force winds and wind chill. When the jet stream dips south during the winter hurricane force winds may develop reaching more than 285 km/h (177 mph). These winds relax in the month of May and most climbers try to attempt the peak during this short window.


The Himalayas house the 3rd largest concentration of ice on the planet after the polar regions are often referred to as the third pole of the planet.

Seasons of Everest
Mount Everest lies 28° north of the equator and is subject to a typical northern hemisphere seasonal pattern. It lies at the edge of the influence of the Indian Monsoon which brings moisture and clouds from June to September. The cold months are December/January and the best trekking is between these two seasons, during March to May and September to November, when the climate is moderate.

1. Winter Weather at Everest:  Winter weather (Nov to Feb) is dominated by the southward migration of the northern hemisphere jet stream which brings high winds, cold temperatures and on occasion heavy snow falls. Winter can be a great time for trekking as the trails are really quiet and there is something challenging about reaching Everest Base Camp in the coldest time of year.

Day temperatures are comfortable with sunny skies generally prevailing although it can get well below freezing even as low as -20 near Everest Base Camp.

2. Spring (preMonsoon)Weather at Everest:

March until the onset of the Monsoon is one of the ideal times to trek. Rain is infrequent and day temperatures are warm. Lots of trekkers and climbers are out in t-shirts and all in all it's a great time to trek.

3. Monsoon Season Everest: 

The summer weather (June to August) is influenced by the Indian Monsoon which brings frequent rainfall and cloudy days. You might find solitude during this time but clouds and rain generally obscure the peaks and it’s not a good time to visit the Everest region.

4. Autumn Weather (post Monsoon) at Everest: 

The Autumn season from the end of the Monsoon until temperatures get cold in December is a great time for trekking with generally clear days and comfortable temperatures.

When is the best time of year to visit Everest Base Camp

Everest Precipitation Patterns

The Everest Base Camp Region is fairly dry with an average of 18 inches of precipitation received at base camp. Most of the precipitation that does fall (80%+) occurs during the monsoon season of June to August and the rest of the year is fairly dry.

Monsoon moisture comes from a south so Everest Base Camp experiences a rain shadow effect with most precipitation falling on the south side of the mountains with the rain almost running out of steam as it were, before the clouds reach base camp.

The high elevation and generally cold temperature act as a controlling influence on the amount of moisture and limit its overall availability. This becomes evident when one compares base camp precipitation (18in) to that in Lukla (70in) at the start of the trek.

The actual summit of Everest receives very little precipitation as most of it is scoured by high winds which you can see sometimes with the spindrift on the summit.

Big winter snowstorms while infrequent are possible as strong mid-latitude storms occasionally brush the region and can deliver over a meter of snow at base camp often taking trekkers by surprise. Its still possible to hike out but be prepared with windproof bottoms and gaiters if planning a winter trek. Ohh and don't forget the down jacket of course.

Temperatures at Everest Base Camp
The coldest temperatures of the year occur from the 15th of December onward until the end of January with temperatures at the summit averaging -37C (-35F) while those at Everest Base Camp average -17C (1.4F). Temperatures warm rapidly in the spring months of April and May bringing t-shirt weather although nights are still cold and chilly. It’s not uncommon to see climbers wearing t-shirts all the way up to camp 3 during this time period.


During May the short window for climbing the mountain summit temperatures average -15F and -26C.

Wind and Wind Chill on Mount Everest
The summit of Everest might be the windiest place on earth with hurricane force winds buffeting the summit on over 50% of days during the windiest months. From the middle of October until the start of April the summit is subjected to winds that are almost continually in excess of 74 mph which is equivalent to a Category 1 Hurricane. During the winter Wind Chill adjusted temperatures at the summit are as low as -70C (-90F) and exposed skin would be frostbitten almost instantaneously at this temperature. Lower wind speeds in May and warmer temperatures explain the relatively short climbing window.

Wind chill and low temperatures combined with high elevation make the summit of Everest one of the least hospitable places on the planet during the winter. The adjusted wind chill temperatures of 70C (-90F) observed on the summit compare to the worlds coldest places such the record cold -67.8C (-90F) in Siberia and -89C (129F) measured at Vostok in Antarctica.

How late in June can you do the Everest Base Camp Trek  ?

There is nothing stopping trekkers from heading to Everest in the monsoon as the timing of the monsoon varies from year to year. Some years the monsoon can start as early as late May and others not until the end of June but the average is about June 15. The monsoon lets up on average in the beginning of September. If you are able to plan your trip without much advance notice and want to go in June keep tabs on forecasts and the progress of the monsoon across India. The monsoon typically advances as a very clear boundary and withdraws in a much less orderly fashion.

Cloud Formations of Everest
The pyramidal shape and high winds around Mount Everest produce a rare cloud type know as a “Banner Cloud.” The Banner Cloud can be seen on otherwise cloudless days on the lee side of the mountain and forms as strong winds wrap around the mountain and create a temporary low pressure cell on the lee side which draws moisture upwards.

Only a few other peaks like the Matterhorn in Switzerland produce this same type of dynamic. Its commonly thought the cloud forms as Everest is the only mountain that actually projects into the jet stream but recent research shows its more likely due to the combination of high winds and the morphology of the mountain.


It’s said that the shape of the cloud on Everest is actually associated with the wind speed so that at 50mph the cloud is at a right angle to the peak and when its stronger it tilts down (conversely tilting up when its weaker).

When is the best time of year to visit Everest Base Camp

Forecasting the Weather on Everest
The nearest weather station to the summit is at Lobuche and is known as the “Pyramid Station.” The weather station is at elevation of 5,079m and has been operating since 2006. Obtaining accurate forecasts at the summit is essential for climbers and many teams hire meteorologists to produce daily spot weather forecasts. Forecasts are made by combining on the ground observations with large scale weather models. It can generally be assumed that the temperature gradient between base camp and the summit is approximately +1ºC per 150 meter of altitude.


When is the best time of year to visit Everest Base Camp

Climate Change and Everest

The small museum at the Everest view point in Namche Bazaar has some great historical photos of the Khumbu Glacier. Looking at these photos it’s not at all evident that the Khumbu Glacier is retreating because it is in basically the same position during the last 50 years. However, looks can be deceiving and while the glacier is not retreating it is thinning and loosing volume. Thinning occurs as a result of sublimation (direct evaporation of the ice) as opposed to melting. Sublimation occurs as temperatures are frequently below zero and the glacier never has a chance to actually melt.


Everest and Climate Extremes

  • Coldest Temperature on Summit: -41ºC (-42F)
  • Warmest Temperature on Summit: -16ºC (3F)
  • Highest Windspeed Everest: 175mph+ (Category 5 Hurricane Equivalent)
  • Everest Summit is the Windiest Location on Earth
  • Unique Clouds: Banner Clouds form only on Everest and the Matterhorn

When thinking about what time of year you want to head to Everest Base Camp or the Everest region, as you can see there are lots of options. Whatever time of year you go, it's a very real and extreme challenge but one that is achievable, reachable and unbelievable!

If you're thinking of trekking to Everest Base Camp, make sure you download our comprehensive free guide right below which walks you through all of the finer details of the trip itself.



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Written By

Andy Moore

Head Yeti & CEO