Upper Mustang Trek is famous for its high, rocky, colorful cliffs and caves. It is an isolated region bordered by Tibet. The rock paintings, monasteries, and snow-capped mountains are specialties of Upper Mustang.

There are two regions in Mustang: lower and upper. The upper Mustang is suitable for trekking. It is a rain shadow area. The high portion of the upper Mustang lies in the rainshadow area, so it is possible to trek during monsoon as well.

Let’s dive into more information about the weather of the upper Mustang.

Trekking Upper Mustang in Spring

Spring is the ideal time to trek the Upper Mustang. March, April, and May are three months of Spring. The weather is perfect for trekking. The pleasant weather attracts many trekkers.

The temperature ranges from 13 to 22 degrees Celsius during the daytime. At night, it drops below freezing point. Even though it is cold at night, you can warm yourself in the firelight of teahouses.

The spectacular views of Annapurna, Dhaulagiri, and Nilgiri are awesome. The clear skies and pleasant weather encourage trekkers to move forward. Everything is just perfect in this season.

It is the blooming season. You can see blooming wildflowers all along the trail. The immense natural beauty makes your heart flutter. Temperature begins to warm up. The forests become beautiful. The natural beauty of Spring engages you in the whole journey.

After Spring, the monsoon season starts. So, rainfall is possible in late May. However, there is no rainfall during this season. The trails are in the best possible condition. Tiji festival occurs in May. You can discover the cultural beauty during this festival.

Trekkers keep the trail busy. Many trekkers choose this season to enjoy the best weather. So, tea houses are packed. Make sure to prebook. The journey will be merrier with companions.

Trekking Upper Mustang in Summer

Summer is the hottest, with heavy rainfall. June, July, and August are three months of Summer. It is possible to trek the Upper Mustang even this season because it lies in a rainshadow area. There is no rainfall above Kagbeni.

The temperature is scorching hot. It ranges from 20 to 30 degrees during the daytime. At night, it drops up to -3 degrees. You will be sweating a lot during the journey. You get tired easily.

The main advantage of summer is that you can explore more in natural sunlight. Summer has longer days and shorter nights. The sky is clear. You can enjoy the view of landscapes and mountains.

Though it is possible to trek this season, many trekkers avoid it. It is very difficult to trek in a hot climate. There is the possibility of landslides below Kagbeni.

Trekking Upper Mustang in Autumn

Autumn is the best time to trek any part of Nepal. September, October, and November are three months of Autumn. It is the most feasible time of the year. The moderate climate favors trekkers with a comfortable journey.

The temperature ranges from 11 to 20 degrees during the day and -7 to -2 at night. It is warmer during the day and chillier during the night. October and November are the best times of this season.

Autumn is the fall season. The tree leaves change its color, making the forest look beautiful. It comes after the monsoon, so the weather is clear. But there is a chance of strong wind coming from the north. Make sure you put on windproof clothes.

It is the peak season with the best climate. It is the safest time to trek. The view of landscapes and mountains is breathtaking. It is also possible to trek the Sari Bung ang Teri La pass during Autumn.

There are many trekkers from different countries trekking in this season. It is the busiest season. You can also enjoy Dashain and Tihar with locals. You will get to experience the best journey in this season.

Trekking Upper Mustang in Winter

Trekking in Winter is not recommended. It is the coldest season. December, January, and February are three months of Winter. After sunset, the temperature starts to freeze. It drops up to -25 degrees at night.

The coldness is unbearable. Many locals migrate to Pokhara and Kathmandu during Winter to avoid extreme cold weather. Only a few villagers stay back to care for animals and the village. There is heavy snowfall in high altitudes.

The locals start packing during mid-December. About 80 percent of locals descend to lower regions. The remaining people survive with proper clothes and firewood. The trails are covered by snow. Many passes are blocked due to heavy snowfall. So, it is closed for safety reasons.

You need heavy packing. If you are a professional trekker, then only you can try trekking in this season. It is very risky. There is the possibility of avalanches. You will need a proper hiking map and cold-weather gear.

Many tea houses remain closed. So, you need a tent and sleeping bags. It isn’t easy to survive camping in such weather. But people take risks to experience the heavenly winter wonderland.


Hence, you can trek in Autumn and Spring for a comfortable journey. You get the opportunity to make new friends. If you love rain and can tolerate hot weather, summer is a good time. Winter is not recommended. But if you prepare well and take precautions, you can trek in any season.