Annapurna Circuit Trek Weather

The Annapurna Circuit Trek weather is diverse, just like the landscape that its trekking route covers. It takes you from a lower altitude of 760 m at Besisahar to a high altitude of 5,416 m at Thorong La Pass. The classic full circuit trail covers the distance of 160 to 230 km (100 to 145 miles). You will ascend from the lush subtropical valleys to alpine forests and high-altitude arid areas. As a result, there is a significant shift in climate from lower to higher altitude areas. The lower subtropical region is typically warm and humid, in contrast to high-altitude areas, which are generally cold and dry.

The four seasons that Nepal experiences each year also impact the weather and affect the Annapurna Circuit Trek experience. Spring and autumn offer the best climatic conditions with excellent views. These are also the peak trekking seasons, offering pleasant weather and comfortable trekking conditions. Meanwhile, summer and winter are considered off-seasons, but they are more adventurous and ideal for adventure seekers. Understanding the weather patterns of each season is crucial for planning your trek. It allows you to make careful preparations, ensuring your journey is safe, enjoyable, and comfortable.

Being aware of the weather pattern also allows you to get the most out of trekking to the Annapurna Circuit. On clear days, you can enjoy clear and grand views of Annapurna I (8,091 m), Annapurna II (7,937 m), Annapurna III (7,555 m), Annapurna IV (7,525 m), Gangapurna (7,455 m), Dhaulagiri (8,167 m), Tilicho Peak (7,134 m), and other surrounding peaks. Similarly, each season offers a unique scenery of the Annapurna region. 

Let us explore the Annapurna Circuit Trek weather in more detail to ensure every stop of your journey is filled with spectacular views and unforgettable moments! 

Annapurna Circuit Trek Weather And Temperature by Season

As we mentioned before, Nepal experiences four seasons annually. We will explain each season in brief:

Spring (March to May): Blooming Trails and Clear Skies

One of the best times of year for the Annapurna Circuit Trekking is spring. It offers one of the most favorable climatic conditions with bright days, clear skies, and warm temperatures. Similarly, you will enjoy longer daylight during this time. With the beginning of the spring season, the weather starts to warm up after a long, cold winter. There can be light snow patches on the landscapes of the higher elevations. Occasional fresh snowfall can also occur. But they disappear as the season progresses. High wind, especially near Thorong La Pass, is common during the day, even in the spring season. The wind speed is around 5 to 15 km/h (3 to 9 mph) in exposed areas.

The Annapurna Circuit trail also comes alive as the flora and fauna get more active. Likewise, the rhododendron forests in the lower forest areas are in full bloom. The vegetation is also lush, green, and vibrant. It adds to the beauty of the landscapes, and you will be treated to spectacular scenery. The scenic beauty makes trekking more enjoyable and memorable. Due to low precipitation levels, there is very little rainfall. Hence, the days in spring are clear with excellent visibility. You can enjoy the stunning and unobstructed views of the surrounding mountain vistas. Spring is an ideal time for one of the most rewarding and photogenic Annapurna Circuit Trek experiences. 

The temperature during spring is as follows:

Pros of spring trekking:

• The weather is favorable with mild and comfortable temperatures.
• Beautiful blooming rhododendrons and wildflowers like orchids, magnolias, primroses, etc.
• Enjoy the scenery of lush and green valleys.
• Excellent visibility and spectacular mountain views. 
• Trails are dry and safe for trekking.
• Teahouses are fully open for business, and the atmosphere is lively. 

Cons of spring trekking:

• The melting snow during early spring at higher altitude areas can make the trail slippery and muddy.
• Some trekkers may experience allergies if they are sensitive to pollen. 
• Since spring is a peak season, the trails are more crowded. 
• The teahouses are busier, and you need to book the rooms in advance.

5/5.0

For the second time we booked a trek with Himalaya Trip (after Langtang in 2024). This time we chose the Annapurna Circuit Trek, again with Ramesh dai as our guide…. Read More

danny grimminck Clarissenhof 435 , 2025

5/5.0

Second time with Harka and his team

For the second time we booked a trek with Himalaya Trip (after Langtang in 2024). This time we chose the Annapurna Circuit Trek, again with Ramesh dai as our guide. We also opted for a porter as we knew it was going to be a more difficult and long trek, so Sandeep bai joined us as well which was great. Both Ramesh and Sandeep were amazing, they helped us throughout the whole trek and kept us smiling. Also, despite the monsoon season, we have been blessed with clear views on some mornings. We would definitely recommend the ACT trek (off season) but especially with the guidance and expertise of Ramesh, Sandeep and Harka/Himalaya Trip!

danny grimminck Clarissenhof 435 , 2025

5/5.0

This is my second trek with Himalayan trip. Last year 16 day to Manaslu Circuit with my daughter, and this year 20 day Annapurna Circuit and side trips with my… Read More

Peter Canada , October 2016

5/5.0

my second trek with Himalaya Trip

This is my second trek with Himalayan trip. Last year 16 day to Manaslu Circuit with my daughter, and this year 20 day Annapurna Circuit and side trips with my wife and friend. Harka and his amazing team delivered an unbelievably enjoyable product. Many highlights. They include partially: Exposure to the Gurung culture. Most fascinating. Mountain scenery beyond belief. Patient, caring porter/guides-Bassu/Deep on Annapurna/Harry/Soroz on Manaslu, all of whom continually assessed our health and well-being, bent over backwards to make this journey a fantastic experience. Dahl baht! Momos! Yaks! Water buffalo. Chang beer! Super pleasant Nepali people en route. Turning 60 en route. Memorable birthday. Challenging altitudes. A very interesting menagerie of fellow Trekkers. Great villages loved Ghandruck, a special Gurung village.

If you are considering a trekking adventure, this family-run company has the experience and knowledge to make it memorable. This year, our porter/guide, Bassu, was incredible. Totally flexible, patient, never without a smile, totally cognizant of our needs, we felt so fortunate.

Deep our porter also never stopped smiling, most contagious. Many great laughs on the trails, such an awesome rich and rewarding experience with these two gentlemen.

Canada, October 2016

Peter Canada , October 2016

5/5.0

In October 2007 we did the Annapurna trek with Harka, which was a fantastic experience. In 20 days Harka guided us from one magnificent place to the other. During the… Read More

Marlies and Joris Netherlands , August 23, 2016

5/5.0

Annapurna trek with Harka

In October 2007 we did the Annapurna trek with Harka, which was a fantastic experience. In 20 days Harka guided us from one magnificent place to the other. During the trek Harka provided us with a lot of information about the region and the people we met. Harka’s experience made it a challenging but safe and feasible trek, by keeping the pace to a level that suited our physical condition. In the evening we rested and played many card games with Harka surrounded by the worlds highest peaks, drinking tea and eating cookies. It was an unforgettable experience, which we will cherish for the rest of our lives. For any further reference please don’t hesitate to contact us via Netherlands., August 23, 2016

Marlies and Joris Netherlands , August 23, 2016

5/5.0

Jay, Harka, and Meshak were outstanding. My friend and I were treated like VIPs throughout the experience. Everyone was a professional, polite, courteous, organized, patient, and extremely friendly. I would… Read More

Andres Betancur USA , November 2023

5/5.0

Outstanding service. It was like having a VIP experience with Jay and Harka. Our porter, Meshak, never stopped smiling!

Jay, Harka, and Meshak were outstanding. My friend and I were treated like VIPs throughout the experience. Everyone was a professional, polite, courteous, organized, patient, and extremely friendly. I would recommend all of them in heartbeat.

USA, November 2023

Andres Betancur USA , November 2023

Summer/Monsoon (June to August): Monsoon Rain and Lush Green Valleys

Summer is one of the least popular seasons for the Annapurna Circuit Trek, and for a good reason. The season coincides with the monsoon. The weather in early June is still dry and warm. As the season progresses, afternoon showers and occasional thunderstorms become common at the end of June. Especially, July and August months of the year are not ideal for trekking. It starts to rain heavily in the southern and lower regions of the Annapurna region.

Especially, July and August months of the year are not ideal for trekking. The rain makes the lower trails and stone-paved paths in areas like Besisahar and Chame wet, muddy, and slippery. Similarly, the humid conditions in the forest regions lead to leech infestation. The rainfall also causes the rivers and streams to swell up. It increases the risk of landslides or mudslides. 

Additionally, heavy cloud layers and fog in the monsoon result in poor visibility. So, the views may be obstructed, and flights often get delayed or postponed. Despite the highly unpredictable weather conditions of summer, the vegetation becomes fresher and greener at this time. While the lower section of the Annapurna Circuit Trekking trail is wet, hot, and humid, the upper region remains cool and dry. Typically, the wind speed is around 10 to 20 km/h (6 to 12 mph). There are very few trekkers on the trail in the monsoon season. So, it is the best time to enjoy the greenery in solitude. The teahouses are also quieter, and you may get seasonal discounts. 

Pros of summer trekking:

• The trail is quiet and perfect for enjoying a peaceful trekking experience.
• Landscapes look fresher and more vibrant.
• Observe locals planting rice and working in terraced fields.
• There are discounts in the prices for accommodations, meals, and fees for guides and porters.

Cons of summer trekking:

• Heavy rain in the lower areas makes the trail slippery and muddy.
• The forest and lowland areas are infested with leeches and insects.
• Rain clouds and fog obstruct the view and limit visibility of the mountains. 
• There is a high risk of landslides, rockfalls, and mudslides.
• The temperature at lower altitudes is hot and humid, and the weather is unpredictable. 

Autumn (September to November): Golden Trails and Unforgettable Mountain Views

Autumn is the most popular and peak season for the Annapurna Circuit Trek. It comes right after summer, so there can be slight rainfall until mid-September. As the season progresses, the monsoon rain ceases and the atmosphere clears up. The rain cleanses the surroundings, making them look fresher and more lush. You can also enjoy the best views of the vibrant landscapes and snow-capped panoramas. Similarly, the air is crisp, and the temperature also becomes slightly cooler. The autumn season offers the most comfortable and stable weather conditions to trek the Annapurna Circuit. There is moderate wind in higher altitude regions with a speed of around 5 to 15 km/h (3 to 9 mph).

With autumn comes the yellow and golden fall foliage. It colors the entire forest landscape of the Annapurna region into a golden hue. The beautiful scenery and clear mountain views offer the perfect setting for photography. Since autumn is also the harvest season, the hillside terrace farms are filled with golden paddies. Additionally, it is also the season of festivals. Nepal’s biggest festivals, Dashain and Tihar, fall during this time of the year. So, you can see trekkers busy with harvest and enjoying the festive atmosphere. You can also enjoy the festivities during the trek if the festive date matches yours. No wonder it is the best season for trekking!

Pros of autumn trekking:

• The season offers the most stable and favorable climatic conditions for trekking.
• You can enjoy safe trekking on the dry trail. 
• Enjoy the vibrant autumn scenery.
• The crisp skies offer excellent and clear views of the snow-capped mountains. 
• Witness the cultural festivities and get a richer and more immersive cultural experience.
• The teahouses are operating fully.

Cons of autumn trekking:

• As autumn is the peak trekking season, the trails are more crowded, even more than during spring.
• The nighttime temperature begins to decrease, and it can drop below the freezing point at higher altitudes.
• You have to book your accommodation in advance. 
• The prices for accommodation, transportation, and fees for guide and porter may also increase slightly.

Winter (December to February): Quiet Trails and Snow-capped Peaks

Winter is also an off-season for the Annapurna Circuit Trek. It is the coldest and quietest trekking season. With the season, it starts to snow at higher altitude areas. The snow covers the entire upper altitude areas of the Annapurna region like a soft blanket. It is a spectacular view that looks like a winter wonderland straight out of a storybook. The air is also crisp and dry. Hence, the visibility remains clear. Winter is the best time to enjoy the snowy landscape scenery and towering mountain peaks. Moreover, the few trekkers on the trail allow you to experience a tranquil trek.

As the snow piles up, the trail becomes icy and slippery. It can also block passes, especially the Thorong La Pass. There is also the risk of avalanches and snow blizzards. You may need snow gear like microspikes and crampons. Days are warm in the lower regions, but it gets colder as you ascend higher. The freezing temperature adds further challenge. One may fall victim to hypothermia and frostbite if they are not careful.

Likewise, winter wind can be strong around high ridges and exposed areas. The wind speed ranges from 10 to 25 km/h (6 to 15+ mph). So, winter Annapurna Circuit Trekking is only recommended for experienced trekkers. It offers solitude and unmatched scenery unique to the winter season. 

Pros of winter trekking:

• Winter is the least crowded season with peaceful trails and serene landscapes.
• Enjoy clear and unobstructed views of the Annapurna and Dhaulagiri ranges.
• Less crowded teahouses with better services.
• Annapurna Circuit offers magical views of the snow-covered forests and valleys.
• There may be off-season discounts on accommodation and trekking services. 

Cons of winter trekking:

• The weather is highly unpredictable, days are shorter, and the trekking conditions are harsh.
• Temperature drops at areas like Thorong La can reach below -15°C (5°F), which increases the risk of hypothermia and frostbite. 
• Heavy snowfall can block the Thorong La, making it impassable for days and sometimes even weeks. 
• Teahouses at higher altitudes can close for winter as many locals migrate to lower valleys.
• Trekkers need proper preparation, snow gear, and some winter trekking experience.

Tips for Dealing with Weather on the Annapurna Circuit Trek

Now that you know the weather of the Annapurna Circuit Trek, let us explore the ways you can deal with it like a professional. Here are some simple and practical tips for you:

• The weather on the Annapurna Circuit changes quickly with altitude, despite the season. So, prepare yourself for warmer lower areas, strong afternoon winds, and colder higher altitudes.
• Carry layer clothing that consists of base, mid, and outer layers for all seasons.
• In spring, start your journey early to avoid windy high ridges, open valleys, and passes. 
• Waterproof everything and wear quick-dry clothing and gear during the Annapurna Circuit Trek in the monsoon. Also, watch out for leeches and landslides. 
• Autumn is a stable time, but the trails are busier. If you want to avoid a crowded trail, start your journey early.
• While trekking in winter, check the trail conditions as snow can block passes. Carry heavy insulation, crampons, and spikes. 
• Keep a day or two as buffer days for weather-related delays or acclimatization. 
• Protect your electronics from moisture and keep your batteries warm during cold weather.
• In all seasons, it is best to book your accommodations in advance. 
• Always carry sun protection, a rain cover, and waterproof boots for your Annapurna Circuit Trek.
• Check for regular weather forecast updates during the trek. You can also download a reliable weather app for the journey. 

Weather by Altitude and Trekking Phases

As we mentioned before, altitude also significantly influences the weather of the Annapurna Circuit. Here is a detail on altitude and trekking phases during the journey:

Lower valleys (Besisahar to Ngadi Bazaar): The lower valleys lie in the subtropical zone. You can see lush vegetation and rolling hillside terrace farms. The climate in these areas is subtropical and humid. It is also the section of the Annapurna Circuit that receives frequent rain during the monsoon. So, there can be landslides in summer. 

Mid-altitude settlements (Chame to Manang): The climate type of the mid-altitude settlements of the Annapurna Circuit ranges from cool temperate to alpine transition zone. These regions receive slightly less rainfall during the monsoon due to the rain-shadow effect. The effect starts near Pisang. As you begin ascending higher, the air gets drier and the wind speed increases after noon. 

High passes (Thorong La pass, the highest altitude): The mountain weather at these altitudes is very dry with thin air and high wind exposure. The climate type is alpine tundra or high mountain desert. At this elevation, the oxygen level drops to 50% of sea level. Hence, trekkers may experience altitude sickness. Although there is no rain, light snowfall can occur even during spring and autumn. There is heavy snowfall in winter. 

Rain/snow line progression and its impact on crossing the pass

The rain/snow line is the elevation at which precipitation changes from rain in lower areas to snow at high altitudes. It allows trekkers and climbers to determine where rainfall turns into snowfall along the trail. Based on the information, one can plan and prepare for safe trekking and crossing of mountain passes. The rain/snow line progression moves up and down depending on the temperature, season, and wind pattern. In the Annapurna region, the line fluctuates between 2,800 m and 5,500 m throughout the year. As a result, it affects crossing of the Thorong La Pass. Here is a detail on its impact on different seasons and the pass conditions:

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Packing and Gear Recommendations

During the Annapurna Circuit Trek, you will traverse different climates and diverse landscapes. Seasons also highly influence the temperature and the climatic conditions. So, you need to pack the proper clothing, equipment, and gear for trekking to the Annapurna Circuit. Having said that, you need to pack smart. Managing your backpack weight makes the journey more comfortable and reduces the risk of physical overexertion. To help you with smart packing, here is our complete list of packing and gear recommendations:

Core Gear for All Seasons

• Base thermal wear (top and bottom)
• Windproof and waterproof jacket and pants
• Lightweight or fleece down jacket
• Quick-dry trekking pants
• Warm insulated jackets, sweater, or hoodie
• Neck gaiter or buff
• Sunhat and warm beanie
• Comfortable and sturdy trekking boots
• Camping shoes or sandals
• Trekking socks
• Backpack (50 to 65 L)
• Daypack (25 to 35 L)
• Raincover
• Trekking poles
• Water bottle/ hydration bladder
• Headlamp with spare batteries
• Toiletries (toothpaste, toothbrush, wet wipes, bio-degradable soaps, sanitizers, towel, etc.)
• Sunglasses and sunscreen
• Small first aid kit

Seasonal Gear

For Spring: 

• Lightweight fleece gloves and beanies
• Sleeping bag with comfort rating −10°C
• Pollen mask (if you are sensitive or allergic to pollen)

For Summer:

• Quick-dry clothes 
• Waterproof rain jacket and rain pants
• Dry bags and waterproof backpack cover
• Waterproof trekking boots 
• Lightweight trail shoes for muddy sections
• Anti-leech socks and insect repellent (lower trails)

For Autumn:

• Three-layer clothing (base, mid, and outer)
• Sleeping bag with comfort rating −15°C
• Warm gloves and a down jacket
• Sunscreen and lip balm (to protect from high UV and dry air)

For Winter:

• Heavy-duty down jacket
• Insulated pants or softshell trousers
• Fleece-lined hat 
• Insulated gloves
• Sleeping bag with comfort rating −20°C
• Microspikes/ crampons
• Extra power bank and batteries (cold drains batteries faster)

Conclusion

The Annapurna Circuit Trek has become one of the most iconic and popular trek destinations in Nepal. Since its opening back in 1977, numerous trekkers from around the world have trekked on its classic trails. It is an adventurous journey that combines changing scenery, towering mountain views, and rich cultural immersion. You will also get to witness seasonal beauty, depending on the time you take the trek. However, you must also face the challenges and adapt to the changing Himalayan weather. This is why you need to understand the weather pattern for the trip.

As you can see, the Annapurna Circuit Trek weather changes significantly with the seasons and altitude. The trail blazes with blooming rhododendrons in spring. Summer offers green scenery but muddy trails. Autumn brings clear and crisp skies with brilliant mountain views. Meanwhile, winter changes the higher altitude into a snowy wonderland. Each season is unique, but spring and autumn are the best times to trek the Annapurna Circuit. While journeying through the diverse landscapes, you will also experience several microclimates. 

You can choose to trek the Annapurna Circuit in any season, but you need to make preparations accordingly. The trail will test you, but it offers an unforgettable experience. So, choose the season wisely and pack smartly. It will be an adventure unlike anywhere else. If you are interested in turning your Annapurna Circuit Trek in Nepal dream into a reality, you can reach out to us directly or check our website!