Overview of Annapurna Base Camp Trek Weather
The Annapurna Trek region lies in the north-central part of Nepal and experiences diverse climatic zones, ranging from subtropical valleys to alpine highlands. The trek begins from lower elevations like Pokhara (820m) and ascends to Annapurna Base Camp at 4,130 meters. Due to this rapid change in altitude, trekkers encounter varying temperatures and conditions in a single day.
Generally, spring (March–May) and autumn (September–November) are considered the best trekking seasons, while summer/monsoon (June–August) and winter (December–February) pose certain challenges due to rain, snow, or extreme cold.
READ IN DETAILS “Best Time to Visit Nepal : A Detailed Guide”
Spring Season (March to May)
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Weather Overview:
Spring in the Annapurna Trek region is mild and stable, with clear skies, longer daylight hours, and blooming rhododendron forests. It’s a peak trekking season due to pleasant weather and vibrant natural beauty.
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Temperature:
- Lower regions (1,000–2,000m): 15°C to 25°C during the day; 5°C to 10°C at night
- Mid regions (2,000–3,000m): 10°C to 20°C during the day; 0°C to 5°C at night
- Mid regions (2,000–3,000m): 10°C to 20°C during the day; 0°C to 5°C at night
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Conditions:
- Mostly dry and sunny days
- Snow still present at higher altitudes early in March
- Rhododendron blooms at their best around April
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Gear Tips:
- Lightweight layers for the lower trail
- Down jacket, gloves, and hat for higher altitudes
- Sunglasses and sunscreen for UV protection
Autumn Season (September to November)
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Weather Overview:
Autumn is the most popular season for the Annapurna Base Camp Trek, with post- monsoon clarity, crisp air, and fantastic mountain views. The trails are bustling with trekkers enjoying stable and dry weather.
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Temperature:
- Lower regions: 15°C to 22°C in the day; 5°C to 10°C at night
- Mid regions: 10°C to 18°C in the day; 0°C to 5°C at night
- ABC Camp: -5°C to 10°C during the day; -10°C to -2°C at night
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Conditions:
- Excellent visibility of snow-capped peaks like Annapurna I, Machapuchare (Fishtail), and Hiunchuli
- Dry trails and very little chance of rainfall
- Mild to moderately cool temperatures
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Gear Tips:
- Standard layered clothing for changing conditions
- Thermal innerwear and down jackets for Annapurna Base Camp nights
- Trekking poles and sturdy boots for rocky terrain
Summer / Monsoon Season (June to August)
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Weather Overview:
Summer overlaps with the monsoon season, bringing frequent rain, cloud cover, and slippery trails. Landslides and leech-infested paths are common, making this a challenging time to trek.
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Temperature:
- Lower regions: 20°C to 30°C in the day; 15°C to 20°C at night
- Mid regions: 15°C to 22°C in the day; 10°C to 15°C at night
- ABC Camp: 5°C to 15°C during the day; 0°C to 5°C at night
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Conditions:
- Heavy rainfall, especially in the afternoons
- Cloudy skies, obstructed mountain views
- Risk of landslides, floods, and flight cancellations
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Gear Tips:
- Waterproof gear: poncho, rain jacket, backpack cover
- Quick-dry clothes and extra socks
- Insect repellent and salt for leeches
Winter Season (December to February)
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Weather Overview:
Winter brings cold temperatures, snowfall, and less crowded trails. While early December is manageable, January and February can be harsh with snow-blocked passes and extreme cold at Annapurna Base Camp.
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Temperature:
- Lower regions: 10°C to 15°C during the day; 0°C to 5°C at night
- Mid regions: 5°C to 10°C during the day; -5°C to 0°C at night
- ABC Camp: -15°C to 5°C during the day; -20°C to -5°C at night
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Conditions:
- Clear skies, especially in the morning
- High chance of snowfall above 3,000m
- Icy trails and potential for trek delays
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Gear Tips:
- Heavy winter gear: insulated jacket, fleece, thermal base layers
- Snow gaiters, crampons, and trekking poles
- Hand warmers and extra batteries (cold drains power quickly)
Weather-Related Trekking Tips
- Always check local forecasts before your trek.
- Hire a guide in off-seasons like monsoon or winter for safety.
- Start early each morning to avoid afternoon weather changes.
- Be prepared for altitude changes—weather can change dramatically within a few hours.
- Always pack layered clothing for flexibility.
