Thorong La Pass Guide: Highest Pass in Annapurna Circuit

By Trip Pokhara 2025-09-26

Do you feel ready for the daring adventure that’s calling your name? Thorong La Pass, the highest point of Nepal’s renowned and popular Annapurna circuit, offers a thrilling adventure that will test your endurance and strength. The pass lies at an elevation of 5,416 meters(17,769 feet), providing an unforgettable experience with panoramic views of the beautiful Himalayas. This guide will equip you with all the essential information and expert tips to ensure a successful and safe trip and adventure.

What is Thorong La Pass?

Thorong La Pass stands as the pinnacle of the Annapurna circuit, a route for trekking in Nepal that draws adventurers from around the globe. It is a high-altitude crossing connecting the districts of Manang and Mustang, two strikingly different regions of Nepal. The lush valleys and picturesque landscapes of Manang and the desert-like environment of Mustang offer the best views of the mountains. 

Reaching Thorong La Pass is the climactic moment of the Annapurna Circuit. This pass serves as the point of true accomplishment for trekkers.

Thorong La Pass Elevation and Height: A high-altitude trekking

The Thorong La Pass has an elevation of 5,416 meters (17,769 feet), which is challenging and not for the faint-hearted. This high altitude challenge requires proper preparation and acclimatization. The air at this altitude contains less oxygen, which can lead to altitude sickness if proper acclimatization is not followed. 

Since the ascent is steep upward for several days, it helps trekkers adjust to the thin air, allowing the body to acclimate to the high altitude before reaching this rigorous and demanding pass.

Key Data

• Elevation: 5,416 meters (17,769 feet)

• Highest Camp: Thorong Phedi (4,525 meters) or High Camp (4,880 meters)

Navigating Thorong La Pass: Map and Route Tips

A map is crucial for travelers to understand that they are on the right path. Having a reliable map is crucial to navigating through the Annapurna region.  Although the Annapurna Circuit is well-trodden, a map can help guide you to critical locations, including tea houses and emergency shelters. 

While you have started your journey, make sure you download offline maps for easier access where the network is not available. The route follows the Marshyangdi River Valley through Manang, ascends to Thorong La Pass, and then descends to Muktinath in the Kali Gandaki Valley.

Route Highlights:

• Manang: Known for its scenic views and acclimatization opportunities

• Thorong La Trek: The high-altitude challenge

• Muktinath: A spiritual destination marking the end of the trek

How hard is Thorong La Pass?

Thorong La Pass, Nepal, is a challenging but highly rewarding experience for trekkers. Being the highest point on the Annapurna Circuit, it presents a test of endurance. While the paths are not extremely difficult or technically difficult, the altitude makes the trek rough as the air grows thinner and oxygen levels are much lower than at sea level. The ascent upwards is long, while the weather is unpredictable where the strong winds and freezing temperatures making it difficult.

However, with proper preparation, good fitness, and a steady pace, crossing and conquering the Thorong La Trek is an achievement, offering you a true sense of accomplishment.

Thorong La Pass Weather and Temperature: Know What to Expect

The weather is constantly changing due to various factors, and the weather during the Thorong La Trek can be unpredictable and harsh. Trekkers need to be prepared for all conditions because of its fluctuating weather conditions. The region is covered in snow for much of the year, and the high winds, especially in the afternoon, can make trekking in Nepal more challenging. Starting the trek early in the morning, before the wind kicks in, is suggested for the trekkers of this region.

Seasonal Insights

March, April, October, and November are considered the best seasons and a favorable time of the year for the Thorong La Climb. Months other than this carry increased risks of frostbite, avalanches, and even storm whiteouts.

Spring comes with clear skies and warmer temperatures but occasional snowstorms, making it one of the suitable times to climb the pass. Summer comes with heavy rain and potential landslides as the monsoon arises during this time, making it not ideal for trekking. Autumn is the most popular season that comes with stable weather and crystal clear views. Winter is about extreme cold and snow that makes the pass impassable for most trekkers. 

Temperature:

• Daytime: -5°C to 0°C (23°F to 32°F)

• Nighttime(Highcamp): -10°C to -15°C (5°F to 14°F)

Thorong La Pass Trek Map

The Annapurna Circuit is a well-traveled route, but having a map ensures you stay on track, especially when navigating the more challenging sections. The map highlights key landmarks, such as Manang, Thorong Phedi, High Camp, and Muktinath, helping you plan daily stages and distances. It keeps people on track, allowing you an easier method of navigation in the Annapurna Circuit.

Whether you’re using a traditional paper map or a digital version, having a reliable guide to the Thorong La Pass trek map is indispensable for a safe and successful journey through this stunning part of Nepal.

Preparing for the Trek: Acclimatization and Packing Tips

Since Thorong La Pass is one of the difficult climbs, the success heavily depends on acclimatization because acclimatization is the key. While you are on this journey, spend at least 2 nights in Manang, which will help your body adjust to the altitude. You can add side trips to the Ice Lake and Gangapurna Lake while you are acclimatizing.

Essential Trekking Tips

• Hydrate well to avoid altitude sickness.

• Listen to your body and descend if you experience symptoms of nausea and headache.

• Physical preparation is a must as the trek demands fitness, endurance, and stamina.

Packing is also an essential part of your trekking in Nepal for comfort and safety. Since temperature fluctuates, layering your clothes is essential while you are on your journey.

• Layered Clothing

Base layer, insulating mid-layer, and waterproof/windproof outer layer.

• Warm Hat and Gloves

Essential for protection against the cold.

• Trekking Poles

Provide stability and reduce strain.

• Head Lamp

For early starts before dawn and walking in the dark.

• Down Jacket and sleeping bag

For cold nights at high altitude trekking.
 

Final Thoughts

Thorong La Pass is a feat that every trekker should experience at least once while in the Annapurna Region. Whether you are drawn by the challenge, the breathtaking scenery, or the spiritual journey, this high-altitude trekking in Nepal is an unforgettable achievement. With the right preparation, gear, and knowledge, you’ll be ready to take on this unforgettable trek and enjoy the most beautiful landscapes along the way.

FAQs (Frequently Asked Questions)

1. What is the best time to cross Thorong La Pass?

March, April, October, and November are the best times to cross Thorong La Pass. They are the best times to cross the pass as they offer clear skies, an easier path, stable weather, and stunning views.

2. How difficult is the Thorong La Pass Trek?

The trek is challenging due to the extreme altitude of 5,416 meters and the long days of trekking. Proper acclimatization and physical fitness are crucial.

3. Do I need a guide to cross Thorong La Pass?

Yes, it’s possible to trek Thorong La Pass independently, but the trek is challenging due to extreme altitude and long days of trekking. A guide is highly recommended for newcomers to high-altitude trekking.

4. What gear is essential for the trek?

Essential gear for a trek like Thorong La Pass includes hiking boots, layered clothing, trekking poles, a down jacket, and a headlamp, along with other essentials.

5. What are the symptoms of altitude sickness?

Symptoms of altitude sickness include headache, dizziness, fatigue, and loss of appetite. If you notice any of this, contact your guide, and in extreme cases, descending or rescue is necessary. 

6. Is Thorong La Pass higher than Everest Base Camp?

Yes, Thorong La Pass, at an elevation of 5,416 m, is higher than Everest Base Camp. It is the longest high-altitude pass with beautiful landscapes during your trek.

7. Is Thorong La Pass hard?

Yes, the Thorong La Pass is a relatively challenging trek. Being the climax point during the Annapurna Circuit Trek, where half the oxygen at sea level is available, it is a hard climb.