Manaslu Trek Weather and Temperature in September
The Manaslu Circuit Trek in September is refreshingly cool. Higher areas of the Manaslu region can be colder, but it is an adorable temperature. The first two or three days will be warm in subtropical regions. The temperature will chill up to Namrung, then start colder from Namrung until the pass. The temperature might decrease by 7-8 degrees Celsius in the higher regions of the Manaslu Region in September.
September is the first month of the autumn season. Autumn is one of the busiest trekking seasons for the Manaslu Circuit Trek. But it can be rainy days until mid-September. The weather changes to crystal transparent in late September. Because of the crystal weather conditions, you will see many snow-capped high mountains during the Manaslu Circuit Trek in September.
Manaslu Trek in September Highlights
- Trekking experience inside the restricted region
- Experiencing sub-tropical climate in the lower region
- Hindu and Buddhist culture, religion, temples, monasteries, and other monuments
- Meet different tribes of local people
- Lifestyle and daily activities of Lowlanders and Highlanders
- Walking through beautiful valleys
- Rivers, streams, and waterfalls
- Stunning views of Manaslu, Nadi Chuli, Himal Chuli, and more
- Crossing a high adventure pass Larke La (5,106m)
- Beautiful Glacial lake
- Wildlife and vegetation
Rewards of Manaslu Trek in September

Trekkers are on the Manaslu circuit Larke Pass
Fewer Trekkers
The Manaslu Region is restricted, so trekkers must have three permits and hire a guide. There are fewer trekkers than on the other commercial trekking routes. September is the beginning of autumn, so fewer visitors are on the Manaslu Circuit Trek than in October and November.
Two Different Weather Conditions
You can experience two different weather conditions during the September Manaslu Circuit Trek. The first two weeks of this month feel like monsoon weather with a few rainfalls, while the last two weeks offer nice, clear autumn weather.
Unreal Views
Usually, the days will be bright in September, so you can see mesmerizing views of the high mountains, green hills, and more this month. For a few days, you can always see beautiful mountains after the Lho Gaun in the September Manaslu Circuit Trek.
Greenery Everywhere
Monsoon rains from June to August provide plenty of water for the vegetation. In summer, the trees and herbs change to dark green and still look beautiful in September. Cider, needlewood, and other trees in the lower region, as well as pine, oak, juniper, and other trees with dense shrubs, look beautiful in the Manaslu Region in September.
Accessible to Cross Larke La
There won't be snowfall and ice on the Larke Pass in September so the trail will be clear. Crossing this high pass without any difficulties this month will be easy. Also, it won't be freezing on the pass in September.
Festival Celebration
September also welcomes many Festivals in Nepal. You can see Teej (a women's festival), Indra Jatra, and other festivals during the Manaslu Circuit Trek. Each festival provides a unique, memorable experience.
Manaslu Trek Preparation in September
September begins autumn, the busiest trekking season in Nepal and the Manaslu Circuit. You must prepare well for this adventure trip since you are going to the high Himalayan region.
You must be physically and mentally prepared to trek in a highly elevated region. Mental Preparation means reading about difficulties and what to do for a successful trip. Physical Preparation involves stamina and exercise.
Mental Preparation
Manaslu Circuit Trek is an adventure trek with a high pass, Larke La (5,106m). It might not be easy in the Nepalese Himalayas, so you must be mentally prepared before planning to trek this route. You must discover your difficulties on the trek and be ready to tackle them.
Intense mental Preparation gives you more confidence to overcome every challenge on the trek. Encouragement and a concerned mind support a successful trip by leaving all doubt behind. I think I can do it.
Physical Preparation
Besides Mental Preparation, Physical Preparation is a vital part of the September trek to the Manaslu Circuit. The Manaslu Trek is an adventure trek, so being physically fit plays a crucial role in this trip. You can do some physical exercise in the club and hike to prepare physically for this Larke Pass trek. Some short treks above 3,000m anywhere in the Himalayas keep you physically fit for this adventure trek.
Manaslu Trek Difficulties in September

Larke pass (5,106m)
Face Late Monsoon Weather
You might experience Late Monsoon Weather until mid-September. You might have some rainy days during the trek until the second half of September, but it won't rain continuously like in a Monsoon. The rivers, waterfalls, and streams stay bigger and look attractive. The second half of September brings autumn, so that the weather will be nice and clear.
Long Trekking Camps
The Trekking Camps are extended for a few days in lower areas. There are lots of uphill and downhill trails that can make for a tiring walk. You need to cross several streams on temporary wooden bridges at other times. They might not be available because of floods, and they sometimes need to take a longer route through permanent bridges.
Dehydration
You might suffer from Dehydration during the Manaslu Circuit Trek in September. The lower region will be warm and sweat significantly because of the many uphill trails. Because of losing sweat, you might be dehydrated.
Altitude Sickness
There will be fewer chances of Altitude Sickness because you start the trek from a low elevation and then ascend gradually to a higher elevation. However, you might feel the Altitude effect after 3,000m of elevation. You will mainly feel altitude when you go for the Larke La pass rather than the other days during the Manaslu Circuit Trek in September.
Tiredness
You might be tired from the long camps and altitude effects during the trek. In the lower regions, you walk 7-8 hours daily, so long camps with many up-and-down hills can tire you out. In addition to the long trekking days, altitude can also cause Fatigue during the trek.
Difficulty of Accommodation
You will find Accommodation quickly in most places, but it might be challenging to find enough space in places like Deng, Namrung, Lo Gaun, Samdo, and Dharamsala. Do not expect Luxury Accommodations or a room with an attached bath during the trek, but you can find Private Accommodation everywhere.
Slippery trails
The September Manaslu trek can sometimes be slippery due to raindrops. However, the trails should not be slippery throughout the trip except for some spots. There will be less rain in the higher areas than in the lower ones.
September Manaslu Trek Tips
Safety and a successful trip are the primal motos of every traveler. Here, I have tried to provide some helpful tips for the Manaslu trek in September.
- Take rain gear in your daypack.
- Drink plenty of clean water and fluid
- Walk carefully on slippery surfaces
- Start walking earlier in the morning
- Walk slowly and comfortably
- Eat and sleep well (do not try taking sleeping medicine if you can't sleep well)
- Keep warm yourself in the higher region
- There are no ATMs and money changers, so take NPR from Kathmandu enough
- Book your Accommodation in advance, at least the day before you reach
- Do not walk alone without keeping a long distance with friends or a guide
- Don't hesitate to tell the guide if you face any problems or difficulties in the mountain
- If you have altitude symptoms, take an extra rest day at the same place or descend to the lower altitude
Equipment for the September Manaslu Trek

Main bag for trekking Equipment
It would help if you packed mixed types of trekking gear for the Manaslu Trek in September for the monsoon and the cold temperature. There will be a warm temperature in the more parts of the trek, so you had better wear a half shirt and pants during the walk. Check a list of Equipment for the trek below:
- Duffel bag or Ruksack
- Daypack
- Sun hat
- Warm hat
- Sunglasses
- Buff
- Thermal layer
- Fleece jacket
- Long and short sleeves trekking shirts
- Gloves
- Down jacket
- Sleeping bag
- Half and full trekking pants
- Rain cover
- Bag covers
- A few pairs of trekking socks
- Good quality trekking boots
- Head torch
- Sun lotion
- Lip balm
- Moisturizer cream
- Trekking poles
- Wet napkins
- Snacks and energy bars
- Quick drier towel
- Hand sanitizers
- First-Aid kit
- Multi-use power socket
- Extra camera battery
- Powerbank for battery charging
- Water bottle or camelback
- Toiletries
Manaslu and Tsum Valley Combined Trek in September
Tsum Valley is a Himalayan Hidden Valley in the Manaslu region. It is a Buddhist region, where you might sometimes see sky burials for cremation after the people die. The Tsum Valley trail splits after about an hour of walking from Philim village.
If you have 5-6 days more with the Manaslu circuit trek itinerary, you can do a combined trek between the Tsum and Larke passes. This long Manaslu Trek offers a beautiful experience in a restricted area experience.
Manaslu and Annapurna Circuit Combined Trek in September

Throng La pass (5,416m)
Annapurna and Manaslu Circuit Treks are adventurous trekking packages in Nepal. They include high passes like Larke La (5,106m) and Throng La (5,416m). After you finish the Manasu circuit here, the Annapurna circuit trail begins from Dharapani.
If you have 7-8 days more with the Manaslu Circuit and want to try the Annapurna adventure, you can do a combined trek of the Manaslu and Annapurna circuits simultaneously.
Other Activities in Nepal with Manaslu Circuit Trek in September
You can do a one-day activity in Kathmandu before the Manaslu Circuit Trek in September. You will have one extra day before the trek to prepare for the restricted area permit and do city tours, such as the Kathmandu sightseeing tour, Bhaktapur and Patan tour, or other heritage tours, which are free days.
In addition to the heritage tour, you can hike around the Kathmandu Valley for a day. The Champadevi hike, the Nagarkot Changunarayan hike, and other beautiful nature hiking routes are available around the valley. Hiking can be beneficial for a long mountain trip.
You might be interested in seeing the Everest Himalayas simultaneously as you are for the Manaslu Circuit Trek in September. You can fly directly to the Everest base camp on a helicopter or try the Everest scenic mountain flight from Kathmandu.
Besides the trips mentioned above from Kathmandu, you can go to Pokhara and do some activities like the Pokhara tour, Sarangkot sunrise tour, Paragliding, Ultra light flight, or bungee in this beautiful city.
The Chitwan jungle safari tour after the Manaslu trek in September can be another refreshment trip for you. You can go to this warm place after a few days of suffering from the cold temperature.
Conclusion
September is perfect for the Manaslu Circuit Trek, so you can confidently plan the trip. It offers clear weather and bright views, except for a few raindrops in the beginning weeks of this month. The waterfalls look attractive with green nature around the September trekking trail. September has a very tolerable temperature so that it will be neither hot nor freezing. It is one of the best times if you do not like to trek with crowded trekkers.