Annapurna Base Camp Trek Monthly Weather Guide

Overview

The Annapurna Base Camp Trek stands as one of the most iconic trekking journeys in Nepal, a mesmerizing route that leads adventurers deep into the heart of the Annapurna Sanctuary, a natural amphitheater surrounded by towering Himalayan peaks like Annapurna I (8,091m), Machhapuchhre (6,993m), and Hiunchuli (6,441m). While the scenery remains breathtaking throughout the year, your experience is largely defined by the season and the weather you choose to trek in.

Understanding the Annapurna Base Camp weather on a month-by-month basis is essential for ensuring comfort, safety, and the most rewarding views possible. The region’s climate varies dramatically due to its altitude, stretching from subtropical valleys to alpine zones in less than 50 kilometers. Each month offers a unique atmosphere,  from spring’s colorful rhododendron forests to autumn’s crystal-clear mountain skies, winter’s calm snowy solitude, and monsoon’s lush greenery.

The weather in the Annapurna region determines not only what you see but how you feel on the trail. Trekkers who prepare well and choose the right time of year often enjoy the trek far more than those who don’t plan ahead. This Annapurna Base Camp Monthly Weather Guide explores every season in depth: spring, summer (monsoon), autumn, and winter, and breaks down each month individually. You’ll also find detailed charts on rainfall and temperature, plus expert packing advice and frequently asked questions to help you prepare for your unforgettable adventure to the base of the great Annapurna.

Is the Annapurna Base Camp Trek Safe?

Yes, the Annapurna Base Camp (ABC) Trek is widely regarded as one of the safest and most beginner-friendly trekking routes in Nepal. The trail is well-marked, dotted with welcoming villages, and supported by experienced local guides and teahouse owners who are always ready to help. With proper preparation, awareness, and basic fitness, most trekkers complete the journey without any difficulty.

The risk of altitude sickness is relatively low compared to higher treks like Everest Base Camp since the maximum elevation at ABC is around 4,130 meters. Walking at a steady pace, drinking enough water, and taking rest days when needed help your body acclimate naturally.

For solo female trekkers, the Annapurna region is considered very safe. Locals are respectful and used to seeing independent travelers. Many women hike solo every year without issues, though it’s always wise to stay in established teahouses and share your itinerary with someone back home. Trekking with a licensed guide adds an extra layer of safety, local insight, and companionship, especially useful in remote stretches or during low season.

During the monsoon, trails can be slippery due to rain and occasional leeches, while winter may bring snow and icy patches near the base camp. With a guide’s help and proper gear, these challenges are easy to manage. In case of emergencies, helicopter evacuation and rescue services are available through local agencies. With thoughtful planning and respect for mountain conditions, trekking to Annapurna Base Camp, whether solo or guided, is both safe and unforgettable.

Seasonal Weather Patterns and Their Impact on Annapurna Base Camp Trekking

Before diving into the month-by-month breakdown, it’s important to understand how Nepal’s four distinct seasons influence trekking in the Annapurna region. Each season paints the landscape differently, alters visibility, and affects how comfortable and safe your trek will be.

The Annapurna region experiences a subtropical to alpine climate, meaning temperatures can vary drastically within a single day depending on altitude. At lower elevations like Pokhara or Nayapul (around 800–1,000m), the weather remains relatively mild year-round. But as you ascend above 3,000 meters toward Machhapuchhre Base Camp (MBC) and Annapurna Base Camp (ABC), temperatures drop significantly,  and conditions can change within hours.

The four primary trekking seasons are Spring (March–May), Monsoon (June–August), Autumn (September–November), and Winter (December–February). Spring and autumn are widely regarded as the best seasons to trek due to their stable weather and clear skies, but even off-seasons have their charm. Let’s explore how each one transforms the ABC trail.

Spring (March–May)

Spring in the Himalayas is a time of renewal, color, and life. The Annapurna Base Camp Trek in spring is among the most beautiful experiences you can have in Nepal. After the cold winter months, temperatures gradually rise, and the trails become lively once again as rhododendron forests burst into brilliant shades of red, pink, and white. The valleys are full of birdsong, and the mountain views are crisp and spectacular.

During March, the weather begins to stabilize, with daytime temperatures averaging between 10°C to 20°C in lower regions and hovering around 0°C to 10°C at higher altitudes like ABC. April is considered the prime month of the season; the skies are mostly clear, and visibility is outstanding. You’ll often find trekkers waking up early to witness golden sunrises over Annapurna South and Machhapuchhre, painting the snow peaks in fiery orange hues.

May brings slightly warmer temperatures, but also hints of the approaching monsoon, especially toward the end of the month. Occasional clouds may form in the afternoons, though mornings remain clear and ideal for trekking. The lush vegetation, pleasant temperatures, and stable trails make spring perfect for first-time trekkers and photographers alike.

One thing to note: because it’s such a popular time, trails and teahouses can be busy. Booking accommodations early is wise, especially around Ghorepani, Chhomrong, and Deurali. Still, the festive energy on the trail, combined with perfect weather, makes spring one of the most rewarding seasons for the Annapurna Base Camp Trek.

Monsoon (June–August)

The monsoon season in the Annapurna region is characterized by heavy rainfall, lush vegetation, and fewer trekkers. While this time of year is generally not recommended for most travelers, it can still appeal to those who appreciate solitude and nature’s vibrancy. The hills turn deep green, waterfalls gush from every cliff, and the trails are alive with the hum of insects and the scent of wet earth.

From June to August, warm and humid air from the Bay of Bengal sweeps across Nepal, bringing heavy rain showers, mostly during afternoons and nights. Daytime temperatures range between 15°C and 27°C at lower elevations, while at Annapurna Base Camp, they average around 5°C to 15°C. The rain can make trails slippery, especially around bamboo forests and stone steps, and leeches become common in damp, lower areas.

Visibility often fluctuates; mornings can be surprisingly clear, offering fleeting glimpses of Machhapuchhre or Annapurna I, while afternoons tend to cloud over. Still, the mountains look surreal after rain, their peaks emerging dramatically from mist. If you trek in the monsoon, the best time is late August, when rainfall begins to taper off, and trails start drying up.

Though trekking in this season requires extra caution, it has unique rewards, peaceful trails, discounted accommodation, and vibrant nature all around. Carry waterproof boots, a rain cover for your backpack, and leech-repellent spray. If you can embrace the elements, you’ll find an entirely different kind of beauty in the Annapurna Sanctuary during the monsoon.

Autumn (September–November)

Autumn is the best and most popular time to trek to the Annapurna Base Camp. After months of rain, the air clears up, the landscapes sparkle in fresh colors, and the sky turns impossibly blue. The monsoon dust is washed away, leaving crisp air and superb mountain visibility that lasts from early morning to dusk.

From September to November, the weather is stable, dry, and perfect for trekking. Daytime temperatures range between 12°C and 22°C, while nights at high altitudes can drop to -3°C to 5°C. It’s comfortably warm in the day and cool at night, the ideal balance for hiking. Trails are dotted with golden terraces of rice and millet, while the distant white peaks of Annapurna and Dhaulagiri gleam in the sunlight.

October is the peak trekking month in Nepal. Teahouses are full, villages are lively, and the atmosphere is joyous as trekkers from all over the world cross paths on the trail. Local festivals like Dashain and Tihar often fall during this season, adding a vibrant cultural touch to your journey. November remains fantastic for trekking too, slightly cooler and quieter but still clear and beautiful.

Autumn’s calm weather means fewer risks of flight cancellations, landslides, or slippery paths. Every sunrise feels like a painting, and the nights are clear enough for mesmerizing stargazing. For most travelers, this is the undisputed best time to trek to Annapurna Base Camp, when the Himalayas reveal their most glorious face.

Winter (December–February)

Winter in the Annapurna region is a season of silence, snow, and solitude. As temperatures drop, the number of trekkers dwindles, offering a peaceful experience for those who don’t mind the cold. If you crave solitude and pristine white landscapes, this is your time.

From December to February, daytime temperatures range between 5°C and 15°C in lower areas, while at Annapurna Base Camp, they can plunge to -10°C or lower at night. Days are sunny and crisp, but evenings are freezing, requiring proper insulated gear. The skies remain astonishingly clear, giving you some of the best mountain views of the year, with glistening snowcaps that seem close enough to touch.

The trek becomes more challenging due to icy sections, especially beyond Deurali and MBC. Some teahouses close temporarily, but major villages like Chhomrong and Sinuwa remain operational. Despite the cold, the serenity is unparalleled, no crowds, no rush, just you and the Himalayas in their purest form. If you’re well-prepared with thermal wear, down jackets, and crampons if necessary, winter trekking in Annapurna Base Camp is an unforgettable adventure.

Summary: Choosing the Right Time to Trek

When deciding the best time for the Annapurna Base Camp Trek, consider your priorities — scenery, comfort, solitude, or cultural experience.

• Spring (March–May): Ideal for blooming flowers, moderate weather, and lively trails.
• Autumn (September–November): Best visibility, stable temperatures, and festival atmosphere.
• Winter (December–February): Clear skies, peaceful environment, but colder conditions.
• Monsoon (June–August): Quiet, lush, but wet and leech-prone.

If you’re a first-time trekker, autumn and spring are your safest and most beautiful options. Adventurous travelers seeking isolation may prefer winter, while monsoon trekking suits those who love nature’s raw beauty and solitude.

Annapurna Base Camp Monthly Rainfall Guide

Rainfall is one of the key elements that shape the experience of trekking in the Annapurna region. The amount of precipitation fluctuates dramatically throughout the year, influencing trail conditions, visibility, and even the availability of certain teahouses along the route. Understanding the monthly rainfall pattern will help trekkers plan better — especially those who wish to avoid heavy downpours or muddy trails.

During the monsoon season (June–August), the Annapurna region receives the highest rainfall of the year, averaging between 600mm and 900mm per month. Trails can become slippery, and river crossings may be more difficult. The leech population increases in the lower altitudes, and fog or mist can often obscure mountain views. However, it’s also during this time that the entire region turns emerald green, with rice terraces and waterfalls at their most vibrant.

In contrast, autumn (September–November) and spring (March–May) receive moderate to low rainfall, averaging 30mm–100mm per month, which makes these seasons much more favorable for trekking. Rain is rare, and the trails are dry and comfortable underfoot. The post-monsoon freshness of September and October ensures dust-free air, producing the clearest visibility of the entire year.

Winter (December–February), on the other hand, experiences minimal rainfall, often under 25mm per month, but snowfall can occur at higher altitudes like Deurali, MBC, or ABC itself. Though precipitation is low, the trails may be covered in snow or ice, so proper footwear and trekking poles are essential.

Here’s a general overview of the average monthly rainfall in the Annapurna Base Camp region:

As you can see, rainfall peaks during summer but remains comfortably low during spring and autumn. Therefore, those who wish to capture clear photographs of the Annapurna massif or prefer dry, comfortable hiking conditions should plan their journey between March–May or September–November.

Annapurna Base Camp Trek Temperature Overview

Temperature plays a vital role in how challenging your trek will be. The Annapurna region spans a wide elevation range,  from around 800 meters at the trailhead to over 4,100 meters at the base camp, so temperatures can vary significantly between lower villages and higher altitudes.

In spring, temperatures range from 15°C to 25°C at lower elevations and 0°C to 10°C near ABC. This makes it a comfortable time for long trekking days, with cool mornings and evenings.

During the monsoon months, temperatures are relatively warm, between 18°C and 27°C, but humidity levels are high. Even at Annapurna Base Camp, the temperature rarely drops below 5°C, making it one of the warmer seasons despite the rain.

Autumn offers perhaps the most comfortable climate overall, days range between 10°C and 22°C, while nights at higher altitudes can fall to -3°C or 5°C. The crisp air and low humidity make hiking feel refreshing.

In winter, conditions get much colder, especially from late December to mid-February. At higher altitudes, temperatures can plummet to -10°C or below, though daytime sunshine often brings relief. Trekkers must be prepared with thermal clothing, down jackets, and good-quality sleeping bags rated for sub-zero temperatures.

Here’s a simple temperature comparison chart to give you a better overview:

The takeaway: spring and autumn offer moderate, stable temperatures perfect for trekking comfort and clear visibility, while winter and monsoon present more extreme conditions suitable for experienced or adventurous trekkers.

Annapurna Base Camp vs Everest Base Camp Trek

Both Annapurna Base Camp (ABC) and Everest Base Camp (EBC) treks are iconic, but they differ in altitude, climate, and overall experience. ABC is shorter, lower, and more beginner-friendly, while EBC is longer, colder, and more physically demanding.

The Annapurna region enjoys milder weather, with daytime temperatures between 10°C–20°C in peak seasons, making it comfortable for most trekkers. The Everest region, being higher, is colder and windier, with nights often dropping below -10°C.

ABC offers lush forests, waterfalls, and panoramic views of Annapurna I and Machapuchare, starting easily from Pokhara. EBC, on the other hand, reveals glaciers, the Khumbu Icefall, and the world’s tallest peaks, accessible via a flight to Lukla.

If you prefer moderate weather and diverse scenery, choose Annapurna Base Camp. For a colder, high-altitude challenge, Everest Base Camp awaits.

Comprehensive Packing Guide for Annapurna Base Camp Trek

Packing for the Annapurna Base Camp Trek should align with the season you’re trekking in. However, certain essentials remain constant year-round. The rule of thumb is to pack light but smart,  layering is key because temperatures fluctuate drastically between day and night.

Clothing

• Moisture-wicking base layers
• Fleece or wool mid-layer for insulation
• Lightweight down jacket or insulated shell
• Waterproof and windproof outer shell (jacket and pants)
• Trekking pants and convertible trousers
• Thermal wear for winter or higher altitudes
• Quick-drying T-shirts and undergarments
• Warm hat, sun hat, and gloves (both thin and insulated pairs)

Footwear

• High-quality trekking boots (waterproof and broken in)
• Warm socks (merino wool recommended)
• Camp sandals or slippers for evenings

Accessories & Gear

• Trekking poles
• Sunglasses with UV protection
• Sleeping bag (rated -10°C to -20°C for winter)
• Headlamp with spare batteries
• Backpack with rain cover
• Reusable water bottle and purification tablets
• Personal first aid kit and altitude medicine

Extras

• Sunscreen and lip balm
• Toiletries and wet wipes
• Power bank and charger
• Snacks and energy bars
• Lightweight towel and small lock for lodges

During monsoon, include a poncho, waterproof bag liners, and leech repellents. In winter, add gaiters and crampons for icy paths. Smart packing ensures you stay warm, dry, and comfortable throughout your journey.

Frequently Asked Questions (FAQs)

1. What is the best month to trek to Annapurna Base Camp?
The best months are April and October, offering clear skies, moderate temperatures, and ideal trekking conditions.

2. Can I trek during the monsoon season?
Yes, but expect rain, leeches, and slippery trails. However, fewer tourists and vibrant greenery can make it a peaceful experience if you’re prepared.

3. Is winter trekking safe in Annapurna Base Camp?
Yes, with proper gear and physical readiness. Some lodges may close, and snow can make trails challenging but magical.

4. Why Annapurna Base Camp Trek in Autumn?
Autumn (September–November) offers the best weather with clear skies, mild temperatures, and stunning mountain views. Trails are dry and safe, and visibility is perfect for photography. It’s also festival season in Nepal, adding cultural charm to your trek.

5. Why Annapurna Base Camp Trek in Spring?
Spring (March–May) is colorful and vibrant, with blooming rhododendrons and lush forests. The weather is warm and stable, making it one of the most comfortable times to trek. It’s ideal for nature lovers and photographers.

6. Why Annapurna Base Camp Trek in Monsoon?
Monsoon (June–August) brings rain and lush green scenery. Though trails can be slippery, it’s great for solitude seekers who prefer fewer crowds and vibrant landscapes. Early mornings often offer clear mountain views.

7. Why Annapurna Base Camp Trek in Winter?
Winter (December–February) is peaceful and quiet, with crisp air and snow-capped peaks. It’s perfect for trekkers who enjoy cold weather and solitude, but proper warm gear is essential due to freezing temperatures at high altitudes.

8. How cold does it get at Annapurna Base Camp?
In winter, temperatures can drop to -10°C or below at night. During spring and autumn, nights are around 0°C to 5°C, while days remain pleasant.

9. What should I wear for the ABC trek?
Layered clothing is best: base layer, insulating mid-layer, and waterproof outer shell. Don’t forget a warm hat, gloves, and high-quality trekking boots.

10. How do weather conditions affect visibility?
Monsoon months (June–August) can obscure views with clouds and fog, while spring and autumn guarantee clear, stable panoramas of the Annapurna Range.

Final Thoughts: Plan Your Annapurna Base Camp Trek According to the Weather

The Annapurna Base Camp Trek is an awe-inspiring journey through diverse landscapes, cultures, and climates. Every season tells a different story. Spring brings blossoms and color, autumn brings clarity and comfort, winter brings peace and purity, and monsoon brings vitality and renewal.

No matter when you go, proper planning, awareness of weather conditions, and suitable gear are essential for safety and enjoyment. Choose your season according to what you value most, be it solitude, scenery, or sunshine, and you’ll experience the Annapurna Sanctuary at its finest.

At All Nepal Hiking Pvt. Ltd., we’re here to craft your unforgettable journey to Annapurna Base Camp. Our expert guides, tailored itineraries, and local hospitality ensure that you trek safely, comfortably, and with memories that last a lifetime. Let us help you choose the best time and plan your perfect adventure beneath the majestic peaks of the Annapurna Range.