The Annapurna Circuit Trek is one of the most diverse and breathtaking trekking routes in Nepal, offering a mix of landscapes, cultures, and climates. The weather and temperature vary greatly depending on the season, altitude, and location along the trek. Understanding these variations is crucial for planning a successful and comfortable trek.

The Annapurna Circuit Trek covers elevations ranging from 760m (Besisahar) to 5,416m (Thorong La Pass), leading to significant variations in temperature and weather. The trek passes through tropical forests, alpine meadows, and high-altitude desert landscapes. The best time to visit Nepal for trekking are spring (March-May) and autumn (September-November) due to favorable weather conditions.

1. Spring (March to May)

Weather: Spring is one of the best times for trekking in the Annapurna Circuit. The weather is generally stable, with clear skies and blooming rhododendrons enhancing the landscape.

Temperature Range:

Lower altitudes (up to 2,500m): 10°C to 25°C (50°F to 77°F)

Mid-altitudes (2,500m to 4,000m): 5°C to 15°C (41°F to 59°F)

Higher altitudes (above 4,000m): -5°C to 10°C (23°F to 50°F)

Advantages: Pleasant trekking conditions, vibrant flora, and longer daylight hours.

Challenges: Higher chances of snow in early March at high passes like Thorong La.

2. Summer/Monsoon (June to August)

Weather: This season brings heavy rainfall in the lower and mid-altitude regions, making trails muddy and leech-infested. However, the rain shadow area of Manang and Mustang receives very little rain, making trekking possible in those regions.

Temperature Range:

Lower altitudes: 15°C to 30°C (59°F to 86°F)

Mid-altitudes: 10°C to 20°C (50°F to 68°F)

Higher altitudes: 0°C to 12°C (32°F to 54°F)

Advantages: Lush green landscapes and fewer crowds.

Challenges: Slippery trails, landslides, and poor visibility due to cloud cover.

3. Autumn (September to November)

Weather: The most popular trekking season, with clear blue skies, excellent visibility, and stable weather.

Temperature Range:

Lower altitudes: 10°C to 25°C (50°F to 77°F)

Mid-altitudes: 5°C to 15°C (41°F to 59°F)

Higher altitudes: -5°C to 10°C (23°F to 50°F)

Advantages: Ideal weather conditions, stunning mountain views, and lively trekking routes.

Challenges: Crowded trails and difficulty in securing accommodation.

4. Winter (December to February)

Weather: Extremely cold, especially at high altitudes. Snowfall can block high passes, including Thorong La, making it challenging to complete the circuit.

Temperature Range:

Lower altitudes: 5°C to 15°C (41°F to 59°F)

Mid-altitudes: -5°C to 10°C (23°F to 50°F)

Higher altitudes: -20°C to -5°C (-4°F to 23°F)

Advantages: Fewer trekkers and breathtaking winter landscapes.

Challenges: Extreme cold, risk of altitude sickness, and the potential for blocked trails.

Learn more in details “How to Prepare for Annapurna Circuit Trek”

Best Overall: Spring (March-May) and Autumn (September-November).

For Off-the-Beaten-Path Experience: Winter (December-February) (only for experienced trekkers).

For Rain Shadow Areas: Summer (June-August) (trekking is possible in Manang and Mustang).

Read more about “Best Spring Treks in Nepal” 

Spring & Autumn:

• Light trekking clothes (moisture-wicking base layers, fleece, and a windproof jacket).
• Good-quality trekking boots.
• Sunglasses and sunscreen (strong UV rays at high altitudes).

Summer/Monsoon:

• Waterproof gear (rain jacket, backpack cover, and quick-dry clothing).
• Leech-repellent and gaiters for muddy trails.

Winter:

• Down jacket and thermal base layers.
• Insulated gloves, woolen hat, and thick socks.
• Crampons for icy sections.

A detailed blog about “Nepal Trekking Packing List” 

Wind Chill: Higher altitudes experience strong winds, making it feel colder than the actual temperature.

Snow and Ice: Snow accumulation at Thorong La and other high passes can be a major obstacle in winter and early spring.

Sudden Weather Changes: The Himalayas are unpredictable, and sudden rain, snow, or storms can occur.

Do you want to learn in details about Best Things to do in Nepal: Most Exciting Adventures?

1. What is the best season for the Annapurna Circuit Trek?

The best seasons are spring (March-May) and autumn (September-November), offering stable weather, clear skies, and comfortable temperatures.

2. How cold does it get at Thorong La Pass?

Temperatures at Thorong La Pass (5,416m) can drop to -20°C (-4°F) in winter and remain between **-5°C to 10°C (23°F to 50°F) in other seasons.

3. Is it possible to trek the Annapurna Circuit in winter?

Yes, but it is challenging due to extreme cold and potential snowfall blocking the Thorong La Pass. Proper gear and experience are necessary.

4. Is it safe to trek during the monsoon season?

Trekking is possible but difficult due to heavy rainfall, slippery trails, and landslides. However, Manang and Mustang (rain shadow areas) remain relatively dry.

5. What should I pack for the trek based on the season?

Layered clothing, a warm sleeping bag, waterproof gear, and sun protection are essential. For winter, down jackets, thermal wear, and crampons are necessary.

75 FAQS about Visiting & Trekking in Nepal 

The weather and temperature in the Annapurna Circuit Trek vary greatly with altitude and season. To have the best trekking experience, it is essential to choose the right time based on personal preferences and preparedness. Spring and autumn offer the best conditions, while winter is ideal for solitude seekers and monsoon is best for trekking in the rain shadow areas. With the right preparation, every season offers a unique and rewarding experience on this legendary Himalayan trek.

See the list of the trekking packages we offer in the Annapurna region. 

1. Annapurna Base Camp Trek
2. Ghorepani Poon Hill Trek
3. Annapurna Circuit Short Trek
4. Mohare Danda Trek
5. Mardi Himal Trek
6. Annapurna Circuit – Jomsom Trek
7. Kopra Ridge Trek
8. Annapurna Nar Phu Valley Trek
9. Tilicho Lake Trek with Thorong La Pass
10. Panchase Trek 

CONTACT US at our email at This email address is being protected from spambots. You need JavaScript enabled to view it. / This email address is being protected from spambots. You need JavaScript enabled to view it. or whatsapp +9779841416722 / +9779841389464 if you would like detailed itineraries or assistance planning any of these treks.