Trekking in Nepal during September
September is the start of the official peak (best) trekking season in Nepal.
However, it's important to realize that it's also the end of monsoon season which can continue on into mid September. Heavy monsoon rains along with thunderstorms can linger on as the weather cools down to pleasant temperatures for trekking.
For those that take the chance at trekking early September there is a chance that your could get open trails with few other trekkers and beautiful views. It's a 70/30 chance in my estimation of rain in early September.
For the most part at 2,000m expect day time temperatures of 24+ degrees and temperatures at night around 11 degrees.
September trekking tips
- Try to plan your trek from mid-september onwards
- Bring light rain gear just in case
In early September it's best to avoid remote treks in far west or east Nepal. There's still flooding in these areas and the roads are not considered safe. From mid-September the monsoons should have passed and the trekking season begins in earnest. All treks are now possible from the all-time popular treks like Everest Base Camp and Annapurna Circuit to the remoter treks.
What is the weather like in September for trekking in Nepal?
September in Nepal marks a transition period, starting with the lingering effects of the monsoon season and ending with the arrival of the peak trekking season. The first week or two of September can still experience some lingering heavy monsoon rains, a final burst before the weather begins to clear.
Following this brief period, the skies open up to bright, pleasant, and dry weather, heralding the start of the prime trekking season. Trekkers can look forward to comfortable daytime temperatures in the mountains, reaching 24+ degrees Celsius. Nights become cooler, with temperatures typically around 11 degrees Celsius, making for refreshing evenings. As with any mountain environment, temperatures will decrease as altitude increases, but the clearing skies and dry weather in late September often provide stunning views.
The shift from monsoon to dry weather in September creates a unique trekking experience. The early part of the month requires some flexibility and preparedness for rain, while the latter half offers ideal trekking conditions.
Trails might still be a bit muddy in the initial weeks, but they quickly dry out as the weather improves. The air becomes cleaner and crisper, and the views become increasingly spectacular. While it's important to be prepared for some rain at the beginning of the month, especially at lower altitudes, the overall trend in September is towards drier and more stable weather, making it an attractive time to trek in Nepal.
* weather temperatures and conditions change as you go up in altitude or descend. Likewise there are variations depending on the trek. Always expect passes and base camps to have more extreme conditions. The temperatures listed here are only used as rough indications.
Historical weather data for trekking in September
Since publishing my guidebooks we've been keeping an accurate record of both GPS data for trails and the weather to try and help trekkers make decisions.
The following information is correlated based on real trekking guides and trekkers who were in the following areas. The weather data is broken down into the year of the trek, weeks in the month and a note on what a guide or person experienced in terms of weather. We've used EBC, ABC and the APC for weather examples as they cover the widest range of areas.
EBC = Everest Base Camp. ABC = Annapurna Base Camp. APC = Annapurna Circuit.
* Blank years or months just means the guide or data is/was not available. It may also mean we've not had the time to update the data here (we have a lot of data on all treks). We are trying to keep this information as accurate as possible. If you are looking for specific data you may contact us, however you can best support this site by purchasing a guidebook first.
This historical climate/weather data may be useful to some but do remember that that the weather can change on an hourly basis in Nepal.
What trekking clothing is needed during September in Nepal?
September in Nepal presents a transitional climate, demanding adaptable clothing choices for trekking. A light, breathable rain jacket is a must-have throughout the month, ready to shield you from the occasional shower or the heavier rains that can still occur in the initial weeks. While heavy jackets are generally unnecessary due to the warming temperatures, unless you're anticipating extended stays at high-altitude base camps, layering is the most effective strategy.
Many trekkers opt for shorts during the day, enjoying the pleasant warmth, then readily switch to longer trekking trousers as evening approaches and temperatures begin to dip. A sleeping bag liner can be a comfortable addition for warmer nights, but packing a light sleeping bag is a wise precaution, especially if teahouses happen to have limited blanket supplies.
Consider packing moisture-wicking base layers as well, as even with pleasant daytime temperatures, exertion can lead to perspiration. And don’t forget a good sun hat and sunglasses for protection from the strong mountain sun.
Is trekking accommodation on the trails open during September in Nepal?
All trekking accommodation along the well-established routes will be open and welcoming trekkers in September. As the peak trekking season gets underway, teahouses and lodges are prepared for guests.
While rooms are rarely fully booked at this time of year, it's always prudent to check with local sources or your trekking agency regarding availability, especially if your trek takes you to less-trafficked regions or if you're traveling during any local holidays. Booking ahead is generally not essential for most popular routes, but it can certainly offer greater peace of mind, allowing you to secure your preferred teahouse and room.
Are trekking restaurants on the trails open during September in Nepal?
Just like accommodation, all restaurants and teahouses along the trekking trails will be open and serving trekkers in September. Food is readily available as the trekking season begins.
While you'll find plenty of options, it's always a good idea to be mindful of local customs. It's customary for trekkers staying at a teahouse to also dine there. This is an important part of teahouse culture and helps support the local economy.
Be sure to confirm their policy on outside food and drinks to avoid any misunderstandings. For a deeper understanding of teahouse etiquette and dining customs during treks, I highly recommend consulting my guidebook trekking in Nepal.
Are trekking permits available in September in Nepal?
Yes, trekking permits are available year round in Nepal including September. Permits are available in both Kathmandu and Pokhara.
Do you need travel insurance for trekking in September?
Trekking in Nepal during September means you'll need travel insurance. It's peaks season and the weather should be good. This is when trekkers often enjoy going that bit further, beautiful views distract and altitude sickness is ever-present
Do read about getting proper travel insurance for trekking in Nepal.
Find out when is the best time of year for trekking in Nepal
Do read my full article on when is the best time of year to go trekking in Nepal for a full overview which it makes it easy to pick the best season to go trekking. Meanwhile here's a monthly breakdown.
» What's it like to trek in Nepal in January?
» What's it like to trek in Nepal in February?
» What's it like to trek in Nepal in March?
» What's it like to trek in Nepal in April?
» What's it like to trek in Nepal in May?
» What's it like to trek in Nepal in June?
» What's it like to trek in Nepal in July?
» What's it like to trek in Nepal in August?
» What's it like to trek in Nepal in September?
» What's it like to trek in Nepal in October?
» What's it like to trek in Nepal in November?
» What's it like to trek in Nepal in December?
Again, if you are trying to make plans it'll be easier to read when is the best time of year to go trekking in Nepal first, then the monthly breakdown.
More information on Trekking in Nepal
The above information should give you a brief outline and understanding about trekking in Nepal in September.
I've compiled more detailed articles on the specifics of trekking in Nepal below.
You will find them to be a great place to thoroughly research your trip to Nepal, be sure to bookmark them so you don't forget!
| You might find my following free guides helpful: | ||||
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My guide on trekking in Nepal |
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Check out my guide on equipment & gear needed for trekking in Nepal | |
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Check out my list of treks to do in Nepal complete with maps |  |
Check out my guide on how to travel overland into Tibet for a lot more! | |
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How to choose a trekking guide in Nepal |  |
My Day by day account of trekking to Everest Base Camp in the off season (winter) | |
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Check out my How to travel overland into Nepal guide |  |
Check out my country Guide to Nepal | |
These guidebooks are a hands on trekking guidebooks that are better than the rest. Yes, really!
The books contain day-by-day guides with accuracy using scalable maps, photographs and travel-tested up-to-date trekking information. Just like my other guidebooks these have been proven to be the best interactive, or paperback guidebooks to Nepal available anywhere today.
So what are you waiting for? Get your hands on these guidebooks and start trekking in Nepal today!
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First Time Trekking in Nepal Guidebook
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Trekking in Nepal Guidebook
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| Full Nepal Guidebook Complete country guide that also includes First Time Trekking in Nepal Discover more guidebooks to Nepal! |
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