The Tsum Valley Trek in Summer offers a unique trekking experience in Nepal's remote Manaslu region. Surrounded by towering peaks, including Ganesh Himal and Sringi Himal, this sacred valley is home to Tibetan Buddhist culture, ancient monasteries, and pristine landscapes. While summer (June to August) brings lush greenery and fewer crowds, it also presents challenges like rain, slippery trails, and landslides.
In this guide, you'll find everything you need to know about trekking in Tsum Valley during the monsoon season, including weather conditions, safety tips, and the best months to visit.

Weather Conditions in Tsum Valley During Summer
General Summer Climate (June – August)
The Tsum Valley Trek in Summer experiences moderate temperatures with occasional rainfall due to the monsoon season.
Daytime temperature: 15°C to 25°C
Nighttime temperature: 5°C to 10°C (higher elevations)
Humidity: High, with misty conditions at times
Trail conditions: Can be muddy and slippery due to rain
Despite the monsoon, Tsum Valley falls in a rain-shadow area, meaning it receives less rainfall than other trekking routes in Nepal. The valley turns lush green, wildflowers bloom, and waterfalls become more vibrant, making it a scenic trek for nature lovers.
Month-by-Month Breakdown
Tsum Valley Trek in June
Early June sees mild temperatures with relatively dry trails.
By mid to late June, rain showers become more frequent, making some sections slippery.
Fewer trekkers mean a peaceful experience, but caution is needed for river crossings and landslide-prone areas.
Tsum Valley Trek in July
July is the peak monsoon season, with more frequent and heavier rainfall.
Trails can be challenging due to mud and occasional landslides.
The valley remains lush and vibrant, with waterfalls at their peak.
Ideal for trekkers who enjoy solitude and don’t mind wet conditions.
Tsum Valley Trek in August
Rain starts to decrease by mid-August, improving trail conditions.
The landscape is at its greenest, with wildflowers in full bloom.
A great time to experience the Faning Festival, a unique cultural celebration in the valley.
Still, be cautious of landslides and leeches along the trail.
Pros & Cons of Trekking Tsum Valley in Summer
Pros
✅ Fewer trekkers: Enjoy a peaceful, uncrowded experience.
✅ Lush landscapes: Green valleys, waterfalls, and blooming wildflowers.
✅ Mild temperatures: Comfortable daytime weather compared to the colder months.
✅ Cultural immersion: Witness local Tibetan Buddhist traditions and festivals.
Cons
❌ Landslide risk: Some trails may be affected by landslides, requiring detours.
❌ Leeches & insects: The humid climate attracts leeches, especially in lower altitudes.
❌ Slippery trails: Trekking poles and good grip shoes are essential.
Essential Safety Tips for Trekking in Summer
Check Weather Forecasts: Always monitor updates for rainfall and potential landslides.
Wear Proper Trekking Boots: Choose waterproof boots with a strong grip to handle muddy trails.
Pack Waterproof Gear: A rain jacket, quick-dry clothing, and a waterproof backpack cover are essential.
Carry Trekking Poles: Helps maintain stability on slippery terrain.
Use Water Purification: Monsoons increase the risk of waterborne diseases, so bring a reliable water filter or purification tablet.
Hire a Local Guide: An experienced guide will help you navigate monsoon-affected routes safely.
Keep Trekking Permits Ready: Ensure you have the Tsum Valley Restricted Area Permit and the Manaslu Conservation Area Permit with you.
FAQs
Is the Tsum Valley Trek safe in summer?
Yes, but trekkers should be prepared for rain, slippery trails, and occasional landslides. Hiring a guide and checking the weather forecast is recommended.
What should I pack for the Tsum Valley Trek in monsoon season?
Waterproof trekking boots
Rain jacket & quick-dry clothes
Trekking poles for stability
Water purification tablets
Insect repellent to protect against leeches
Are accommodations open during monsoon?
Yes, most teahouses remain open, but higher-altitude lodges may have limited services due to fewer trekkers.
Which is the best month to trek in Tsum Valley during the monsoon?
Mid-June to August is the best period, as rainfall is lower than in other parts of Nepal. Late August offers clearer skies and improved trekking conditions.
Final Say
The Tsum Valley Trek in Summer offers an unforgettable adventure for those who embrace nature’s raw beauty and don’t mind a bit of rain. While monsoon brings lush landscapes and a quieter trail, trekkers should prepare for wet conditions, leeches, and potential landslides.
With the right gear, a flexible itinerary, and an experienced guide, summer trekking in Tsum Valley can be a truly rewarding experience. If you're looking for a unique Himalayan adventure away from the crowds, Tsum Valley in summer might be the perfect choice for you!
Ready to explore Tsum Valley in the summer? Contact us today for customized trekking packages and expert guidance! email: [email protected], WhatsApp +977-9851006023 (Bikesh)