Nepal tour in September

September marks the start of Nepal's busiest tourist season. The monsoon rains recede, and the hot, humid summer begins to cool as autumn arrives. The snow-capped peaks shine brilliantly against the blue sky, above lush mountain layers cleared by the monsoon. The average temperature ranges from 25 ℃ to 12 ℃. September is an ideal time to visit Nepal if you want to avoid crowds. By mid-September, even remote trailheads for treks are accessible.

Expect rain and avoid festival rush in September 2025

September 2025 offers a few vibrant festivals as a bonus. But plan your trip carefully to avoid the festival travel rush.

Rain in September

While September offers promising moderate weather with clear skies, travelers should be aware of occasional rain and festival crowds. The remaining monsoon clouds may still bring some rain in September. There are about 10 rainy days with an average rainfall of 323 mm (13 inches), compared to 15 rainy days with 616 mm in August. Most of the rainy days occur in the first half of September. By mid-September, the weather becomes perfect.

Plan for festivals in September 2025

September 2025 will also see two biggest celebrations; Indra Jatra and Dashain. The first one starting on 8th September; Indra Jatra is celebrated in Kathmandu which will not effect your travel. But, this 8-day long mask dancing street festival is actually fun to participate. The second festival, Dashain is the biggest festival of Nepal which lasts for 10 days (22 Sept - 1 Oct) and causes mass movement of locals going back to their hometown or on a holiday. It is must to plan your trip ahead of time to avoid shortage of transportation and accommodations during the festival time.

September weather

Average weather around the major tourist area of Nepal

Place	Max Temp	Min Temp	Rainfall	Rain day
Kathmandu	28.1℃	18.5℃	199.8 mm	15
Pokhara	29.3℃	20.3℃	641 mm	10
Chitwan	31℃	22℃	386 mm	8
Namche	15℃	6℃	165 mm	15
Jomsom	15℃	3℃	72 mm	14

Trip for early September

The rainy season is supposed to end by the end of August, but the last few years have seen some rain throughout September. However, the rain subsides by the beginning of September. It rains in a few days, especially in the late afternoon or night, making it possible to travel.

September is the best time to visit all of the three Himalayan countries.

Cultural tours visiting the scenic hill towns like Nagarkot and Bandipur are also the best thing to do in early September. Since the cultural tours include mostly driving and sightseeing or cultural immersion activities with locals, it is less affected by weather. Spending a night at hilltop towns like Nagarkot and Bandipur gives you ample opportunities to see the Himalayas, as it normally clears up in the morning and evening.

Everest Trek in September

Trekking in the Everest region is more preferable in early September as it rains less in the east than in western Nepal (Annapurna and Dhaulagiri). The high-altitude trail escapes the hot and humid temperature of the foothills. Temperature is pleasant, ranging from about 9 ℃ to 18 ℃ at Lukla (2,800 m) and - 3 ℃ to 8 ℃ at Everest base camp (5,380 m).

Trips for Mid September

By mid-September, monsoon rain subsides and the main tour season for Nepal begins. All trekking trails are open after the monsoon flooding and landslides. It is the best time to go on any treks in Nepal.
To avoid the crowd of popular routes, we recommend some new trails with more cultural insight .

Nepal Travel tips for September

• Choose the well-established popular treks as the trails in remote treks may still be closed by landslide and flood in September
• Prepare for the rain. Good quality, breathable rain gears are recommended.
• Make your luggage/backpack waterproof and bring a cover.
• Footwear must be waterproof or easy to dry.
• Keep your itinerary flexible, considering delays and cancellations of transportation and domestic flights.
• Plan your trip with enough time between your trip and international flight.
• Avoid driving on off-road as much as possible.
• Normally, it rains in the afternoon or evening. So it is better to start your activities early.
• Plan a morning Himalayan sightseeing on the morning if it rains the night before.

Nepal Tibet tour in September

The Himalayas block the monsoon clouds, limiting the rain in Tibet to only one-fourth of Nepal. Also, the temperature in the high ground remains more comfortable during the month, making it one of the popular months to travel. With an average temperature of 14°C and only 9 rainy days, September is the best time for a Nepal Tibet tour. The clouds start to subside, giving way to a fresh view of the Himalayas. It mostly rains in the late afternoon or at night. September has a moderate temperature and weather for the harsh land with an average altitude of 4,500 m.  

Festivals in September

With the advent of autumn and the break from agricultural rush, Speptember is also the beginning of festival season

Indra Jatra - 8 September

Indra Jatra is the most colorful and longest street festival in Old Kathmandu. The 8-day-long festival is marked by mystic mask dancing, feasting, and chariot pulling activities. The festival mainly consists of two events, Indra Jatra and Kumari Jatra. While Indra is the King of heaven, revered for rain and happiness, Kumari is the embodiment of feminine energy against evil and wickedness. Local people from the different neighborhoods of old Kathmandu take out a masked dance and display sacred images. The chariot of the living goddess, Kumari, is pulled around the alleyways of Old Kathmandu. This is one of the most thrilling spiritual festivals in Nepal with respect to nature and feminine energy.

Thimphu Drubchen - Thimphu, Bhutan - 28 September

The Dromchoe is one day festival celebrated 3 days prior to the Thimphu Tshechu. The festival date back to 17th century and showcases the sacred dances dedicated to the chief protective deity of Bhutan, Palden Lhamo. As per the legend, the deity Pelden Lhamo appeared before Kuenga Gyentshen and performed the dances while he was in meditation. Based on these dances, Kuenga Gyaltshen initiated the Dromchoe.
During Thimphu Drubchen the mask dances known as cham and folk dances are performed to bless onlookers, to teach them the Buddhist dharma, to protect them from misfortune and to exorcise all evil.

The famous Thimphu Tshechu festival occurs from 2 - 4 October in 2025.