Best Time for the Everest Base Camp Trek: Month-by-Month Guide

Choosing when to trek to Everest Base Camp can make as much difference to your experience as choosing the right itinerary. The Khumbu's weather is shaped by the monsoon and altitude, and each season brings its own mix of views, temperatures, crowds and challenges. Some months offer crystal-clear skies but busy trails; others bring solitude but cold nights or clouds.

Below we go through the year month by month, so you can pick the right time for your Everest Base Camp trek.

Seasons at a glance

Season	Months	Weather	Crowds	Rating
Autumn	Late Sep – Nov	Clear, dry, stable; cold nights	Busiest	Excellent
Early winter	Dec	Clear, cold, quiet	Low	Very good
Deep winter	Jan – Feb	Very cold, occasional snow	Very low	Fair
Spring	Mar – May	Warmer, some afternoon cloud	Busy	Excellent
Monsoon	Jun – mid-Sep	Cloud, rain lower down, flight delays	Very low	Poor to fair

Temperatures along the trail

Place	Altitude	October day/night	January day/night	April day/night	July day/night
Lukla	2,840 m	16°C / 5°C	9°C / −5°C	17°C / 5°C	20°C / 13°C
Namche	3,440 m	14°C / 0°C	7°C / −10°C	15°C / 1°C	18°C / 10°C
Dingboche	4,410 m	10°C / −6°C	2°C / −15°C	10°C / −5°C	14°C / 5°C
Gorak Shep	5,164 m	6°C / −12°C	−4°C / −20°C	6°C / −10°C	10°C / 0°C

These are typical figures; wind chill can make it feel much colder, and sunshine much warmer.

Autumn in detail: October and November

Autumn is the classic Everest season for good reason. After the monsoon rains wash the dust from the air, the skies are deep blue and the mountains stand sharp and clear from Namche to Kala Patthar. Weather is generally stable, with sunny mornings and occasional afternoon cloud. Daytime temperatures are pleasant for walking, while nights above Dingboche are cold, especially from mid-November. The trails are busy with trekkers from around the world, lodges fill quickly and Lukla flights are in high demand, particularly in October. If you trek in autumn, book several months in advance, start your days early and be patient on busy sections of trail. The rewards are superb views and reliable conditions.

Late autumn also brings the Mani Rimdu festival at Tengboche Monastery, with masked dances by monks in the courtyard. Plan around it if you can.

Spring in detail: March to May

Spring is the second main season, and many trekkers prefer it. Temperatures are warmer than in autumn, making nights at altitude more comfortable, and the forests between Lukla and Tengboche glow with rhododendrons in red, pink and white. From April, expedition tents fill base camp, and you can see what life is like for climbers preparing for the summit. The main downside is haze and afternoon cloud, which can obscure views later in the day, and occasional pre-monsoon storms in May. Plan viewpoints such as Kala Patthar for early morning.

Winter in detail: December to February

Winter is the quietest season on the Everest trail, and if you're well prepared it can be the best. Skies are often clear, especially in December, and the mountains are dusted with snow. Trails are almost empty, lodges are peaceful and lodge owners have time to chat. The challenge is the cold: nights at Lobuche and Gorak Shep can fall below −20°C, and even daytime temperatures above 4,500 m can be below freezing in the shade. Some lodges close from mid-December to February, water pipes freeze and snowstorms can occasionally block trails or delay flights. You need a sleeping bag rated to −20°C or colder, an expedition down jacket, insulated trousers and warm gloves. See our winter trekking guide.

Monsoon in detail: June to September

During the monsoon, the Khumbu receives most of its annual rainfall, especially in the lower valleys. Cloud often hides the mountains for days, trails are muddy and leeches appear in the forests below Namche. Lukla flights are frequently delayed or cancelled, so spare days are essential. On the plus side, the valleys are green, alpine flowers bloom in the high pastures, and the trails are almost empty. Rain is lighter above Dingboche, and mornings sometimes bring clear views. If your only chance to trek is in summer, consider a rain-shadow trek such as Upper Mustang instead. More on this in our monsoon trekking guide.

Crowds and how to avoid them

In October, November and April, the Everest Base Camp trail is one of the busiest trekking routes in the world. Popular stops such as Namche, Dingboche, Lobuche and Gorak Shep can be crowded, and the narrow trail sections and suspension bridges may have queues of trekkers, porters and yaks. To avoid the worst of the crowds, trek in the shoulder months (late September, early December, early March), start walking early in the day, choose lodges slightly away from the main stops, or consider the quieter Gokyo valley. A guide who books lodges ahead ensures you have a room even in the busiest weeks.

Lukla flights and the seasons

The season you choose affects your Lukla flights. In autumn, flights are most reliable, although demand is high and flights may depart from Ramechhap. In spring, flights usually operate well in the mornings, but afternoon cloud can cause delays. In winter, morning fog in Kathmandu or the lowlands can delay departures. In the monsoon, cloud and rain cause frequent cancellations. Whatever the season, keep at least one spare day at the end of your trip. See our Lukla flight guide.

Festivals and cultural events

Timing your trek around a festival adds a special dimension. Mani Rimdu at Tengboche, usually in October or November, features masked dances and rituals. Dumji, a Sherpa festival celebrating the birth of Guru Rinpoche, takes place in Khumjung, Namche and other villages, usually in June or July. Losar, the Sherpa New Year, falls in February or March, with family celebrations and prayers. Dashain and Tihar, Nepal's biggest national festivals, usually fall in October or November and affect transport and offices in Kathmandu. More on this in our festivals guide.

Packing for each season

Your packing list changes with the season. In autumn and spring, bring a sleeping bag rated to about −15°C, a warm down jacket, layers and a waterproof shell. In winter, upgrade to a −20°C bag, expedition down jacket, insulated trousers and microspikes. In the monsoon, prioritise rain gear, a pack cover, dry bags and leech socks for the lower forests. In all seasons, bring sun protection, as UV is intense at altitude. Our packing list goes into more detail.

Which season suits which trekker?

• First-time trekkers who want the best views: October–November.
• Trekkers who prefer warmer nights and flowers: April.
• Mountaineering enthusiasts: April–May, to see expedition life at base camp.
• Trekkers who want solitude and can handle cold: December or late February.
• Photographers: November for clarity, April for colour.
• Budget travellers with flexibility: shoulder months or monsoon, with spare days.

Climate change and changing seasons

Our guides have noticed changes in the Khumbu's weather in recent years: later monsoons, more intense rain events, less predictable snowfall and occasional unseasonal storms, such as the heavy snow brought by late-autumn cyclones. Glaciers are retreating, and glacial lakes are growing. While the broad seasonal pattern remains, it is wise to keep your plans flexible, check forecasts and build spare days into your itinerary.

Booking ahead

For October, November and April, book your trek at least three to six months in advance to secure Lukla flights, good lodges and experienced guides. For winter and monsoon treks, one to two months is usually enough. Whenever you go, choose an itinerary with acclimatisation days and a spare day for flights.

Month by month

January

The coldest month, with nights at Gorak Shep well below −15°C and sometimes −25°C. Skies are often clear, and trails are very quiet, but some high lodges close, and snow can fall. Suitable only for experienced, well-equipped trekkers.

February

Still very cold, with occasional snowstorms, but days lengthen towards the end of the month. Very quiet trails. Losar (Sherpa New Year) celebrations in the villages add cultural interest.

March

Spring arrives. Temperatures rise, rhododendrons begin to bloom at lower altitudes, and trekker numbers increase. Early March can still bring snow; by late March, conditions are good.

April

One of the best months. Warm days, rhododendrons in bloom and the start of the Everest climbing season, with expedition tents at base camp. Afternoon clouds are common, so aim for morning views. Busy trails and lodges.

May

Warm, with the Everest summit window usually in mid to late May and a lively atmosphere at base camp. Pre-monsoon cloud and occasional storms increase towards the end of the month. Good for trekking, with hazier views.

June to August

The monsoon brings cloud, rain in the lower valleys and frequent Lukla flight delays. Upper valleys receive less rain, and the landscape is green and full of flowers, but mountain views are unreliable. Very quiet trails. Suitable for flexible trekkers with spare days.

September

The monsoon retreats during the month. Early September is still wet; by late September, skies clear and the trekking season begins, with fresh, green landscapes and fewer crowds than October.

October

The most popular month. Clear, stable weather, excellent views, comfortable daytime temperatures and cold nights. Trails and lodges are busy, and Lukla flights are in high demand. Book early.

November

Often considered the best month for views, with the clearest skies of the year and fewer trekkers than October. Nights are colder, especially at Lobuche and Gorak Shep. The Mani Rimdu festival at Tengboche often falls in October or November.

December

Early December is excellent: clear, quiet and cold. By late December, winter sets in, with very cold nights and some lodge closures higher up.

Daylight hours and walking times

Daylight varies through the year and affects how you plan your days. In June, the longest days give roughly 13–14 hours of daylight, while in December, days shrink to about 10–11 hours. In autumn and winter, the sun drops behind the ridges early in the valleys, and temperatures fall sharply as soon as it does, so trekkers aim to reach their lodge by early afternoon. In spring, longer days allow a more relaxed pace. On summit mornings such as Kala Patthar, starting before dawn is common in all seasons to catch the sunrise and avoid afternoon cloud.

Weather patterns during the day

In most seasons, the Khumbu follows a daily pattern. Mornings are usually the clearest, with calm air and sharp views of the mountains. As the sun warms the valleys, cloud begins to form, often rising up from the lower valleys by late morning or early afternoon. Wind picks up in the afternoon, particularly at higher altitudes. Evenings clear again in many cases, with starry skies and freezing temperatures. This pattern is why guides schedule early starts and viewpoint climbs for the morning, and why photographers are out at dawn.

Snow and ice on the trail

Snow can fall on the upper Everest trail in any season, but it is most common in winter and early spring, and occasionally after late-autumn storms. Above Dingboche, snow and ice can make trails slippery, especially on shaded sections and the descent from Kala Patthar. In such conditions, microspikes and trekking poles are essential. Heavy snowfall can occasionally close trails for a day or two, and your guide will advise whether to wait. In the main autumn season, the trail is usually dry and free of snow up to Gorak Shep.

Photography by season

Each season offers different photographic opportunities. Autumn gives the sharpest, clearest images of the mountains, with deep blue skies and crisp light; November is especially good for panoramas from Kala Patthar and Gokyo Ri. Spring adds rhododendrons in the lower valleys and expedition camps at base camp, though haze can soften distant views. Winter gives you snow on the ground and long shadows from the low sun. The monsoon brings heavy clouds, green valleys and wildflowers, and when the cloud breaks, the light on the peaks is very sharp. Wherever you go, plan your photography for mornings.

Wildlife by season

The Sagarmatha National Park is home to wildlife such as Himalayan tahr, musk deer, the Himalayan monal (Nepal's national bird) and, rarely seen, the snow leopard. In spring, birds are especially active, and the monal's colourful plumage is often seen in the forests around Tengboche and Namche. In autumn, tahr graze on the slopes near Namche and Khumjung. In winter, animals move to lower altitudes, and sightings can be more frequent near villages. Yaks and zopkioks (yak-cow crossbreeds) are present year-round, carrying supplies along the trail.

Trekking in the shoulder months

The shoulder months (late September, early December, and late February to early March) balance decent weather with fewer crowds. Late September can still bring some monsoon cloud, but landscapes are fresh and green. Early December is clear and cold, with far fewer trekkers than November. Late February and early March see increasing warmth, although snow may linger at altitude. These months suit trekkers who value solitude and are prepared for more variable conditions.

Trekking during Nepal's big festivals

Dashain and Tihar, Nepal's two biggest festivals, usually fall in October and early November, right in the peak trekking season. Treks continue as normal, and some guides and porters may be keen to celebrate with their families, but good agencies plan staffing around this. In Kathmandu, offices and shops may close for several days, and buses and domestic flights are busy as people travel home. It is wise to arrive a day early for permits. If you catch the festivals, with their lights, family blessings and kites, you'll see Nepal at home.

Weather forecasts and flexibility

Mountain weather forecasts for the Khumbu have improved, and your guide and trekking company will monitor them closely. However, conditions can change quickly, and forecasts are less reliable at high altitude. The best strategy is flexibility: build at least one spare day into your itinerary, be ready to move an acclimatisation day or wait out a storm, and accept that your guide may change plans for safety. Trekkers who stay flexible usually enjoy the trek far more than those on a rigid schedule.

Is there a bad time to trek to EBC?

There is no truly bad time, but some months are more challenging. January can be extremely cold, and the monsoon months of July and August bring cloud, rain and frequent flight delays. These months are best for experienced, flexible trekkers or those who value solitude over views. For most people, especially first-time trekkers, autumn and spring offer the best experience.

Month-by-month quick ratings

Month	Views	Temperature	Crowds	Overall
January	Good	Very cold	Very quiet	Fair
February	Good	Very cold	Very quiet	Fair
March	Good	Cold	Moderate	Good
April	Good	Mild	Busy	Excellent
May	Fair–good	Mild	Busy	Very good
June–August	Poor	Mild, wet	Very quiet	Fair
September	Fair–good	Mild	Moderate	Good
October	Excellent	Cool	Very busy	Excellent
November	Excellent	Cold	Busy	Excellent
December	Very good	Very cold	Quiet	Very good

What our guides recommend

When we asked our Everest guides which month they would choose for a friend's first trek, most said late October or early November, for the combination of clear skies and manageable cold. Several recommended early April for warmer nights and rhododendrons, and a few, who love quiet trails, said early December. All agreed that the key is to prepare for the conditions of your chosen month and to stay flexible.

Best time for other Everest region treks

The same seasonal pattern applies to other treks in the Everest region, with some differences. The Gokyo Lakes are at their most beautiful in autumn, when the water is vivid turquoise, and freeze in winter. The Three Passes are best in October and November, when the passes are usually free of deep snow; in early spring, the Cho La and Kongma La may still be icy. The Everest View Trek, which stays below 4,000 m, is pleasant in winter too. Trekking peaks such as Island Peak and Lobuche East are most popular in April–May and October–November. See our guides to Gokyo and the Three Passes.

Altitude and the seasons

The risk of altitude sickness does not depend much on the season, but cold weather can make symptoms feel worse and reduce appetite and sleep. In winter, trekkers often drink less because water is cold, which increases the risk of dehydration. Whatever the season, follow a gradual itinerary, drink plenty of fluids and tell your guide about any symptoms. More on this in our altitude guide.

Planning checklist

• Choose your month based on views, temperature and crowds.
• Book flights, lodges and guides early for October, November and April.
• Pack for the season: warmer gear for November–February, rain gear for the monsoon.
• Add at least one spare day for Lukla flights.
• Check festival dates if you want to join or avoid them.
• Buy insurance that covers trekking to 6,000 m and helicopter rescue.

Pick your month carefully, prepare for it, and you'll have a good trek whenever you go.

Trekking in October versus November

October and November are both excellent, but they differ slightly. October is warmer, especially at altitude, and very busy, with Dashain and Tihar festivals often falling in this month. November is colder at night but usually has even clearer skies and somewhat fewer trekkers after mid-month. Choose October for comfort and November for views and a quieter trail.

So when should you go?

If you want the best chance of clear views and stable weather, trek to Everest Base Camp in October or November. If you prefer warmer nights, flowers and the buzz of the climbing season, choose April or May. For solitude, consider early December. Whatever month you choose, prepare for the conditions, stay flexible and enjoy one of the greatest treks on Earth. Contact us for advice on the best dates for your trek, or read our complete EBC guide.