Nepal September — clouds breaking over the Himalaya as the monsoon begins to ease in late September

Nepal · Nepal

September

Monsoon easing — the final heavy rain month before autumn's clear skies arrive in October.

Strong option

#9 of 12 months

There are better months for Nepal — see the full ranking below.

See when to go instead →

Climate

High

26°C

Low

17°C

Rain

240mm

Sun

5.5hrs/day

30-year climate normals · Open Meteo ERA5

How September scores in Nepal

Weather
Average
Value
Very good
Crowds
Very good
Events
Above average
Atmosphere
Above average

What you gain in September

  • Indra Jatra (Kathmandu festival, September, date varies) is the city's most important festival: the eight-day celebration features the chariot procession of Kumari (the living goddess), masked dances of the demon god Indra, and the blessing ceremony for the President of Nepal at Hanuman Dhoka Durbar Square; the spectacle is extraordinary and is firmly in the Nepali cultural calendar rather than the tourist one
  • September rainfall eases from August's peak: 240mm versus 345mm represents a meaningful improvement, and the second half of September in particular sees clearer days beginning to appear; late-September mountain views from Nagarkot or Kakani above Kathmandu become possible for the first time since May
  • Trekking lodges begin reopening and restocking for the autumn season: September is when the teahouse operators return from their summer break, and the trails begin to be cleared of monsoon debris in preparation for October; visiting in late September places you at the very beginning of the opening-up atmosphere

What you sacrifice

  • 240mm of rain is still very heavy — September is not a comfortable trekking month, and leeches on the lower forest trails below 2,500m remain at high population; the trails from Birethanti to Ghorepani and from Salleri to Phaplu are particularly leech-affected in September
  • Mountain visibility in September improves from the August nadir but is still restricted by monsoon cloud: the dramatic Himalaya panoramas that define Nepal's appeal remain largely hidden until October's skies clear; September trips require accepting that mountain views are a bonus rather than a guarantee
  • The transition between monsoon and autumn can be unpredictable in timing: some years the monsoon extends well into October, pushing the clear autumn season later; September trekking requires plans flexible enough to adapt to extended rain

How September compares to October (best month)

FactorSeptemberOctober
Weather
4
10
Value
7
4
Crowds
7
3

September in other destinations

Lisbon (24.6°C)Barcelona (25.5°C)Tokyo (28.1°C)Bali (30.4°C)Santorini (24.1°C)Paris (21.6°C)New York (23.9°C)Marrakech (31.6°C)Amsterdam (18.8°C)Maldives (30.2°C)Rome (26.5°C)Bangkok (31°C)Istanbul (24.2°C)Vienna (22.1°C)Seoul (25.1°C)Dubrovnik (24.9°C)Rio de Janeiro (27.3°C)Kyoto (28.6°C)Phuket (31°C)Cape Town (19°C)Prague (21°C)Amalfi Coast (27°C)Mexico City (22°C)Medellín (28°C)Fiji (27°C)London (20°C)Sydney (20°C)Iceland (10°C)Tulum (32°C)Dubai (39°C)Singapore (32°C)Hoi An (31°C)Chiang Mai (31°C)Miami (32.8°C)Florence (26.3°C)Queenstown (12.5°C)Madrid (28.7°C)Porto (25°C)Edinburgh (16°C)Copenhagen (18°C)Budapest (23°C)Kraków (19°C)Tbilisi (26°C)Palawan (30°C)Hanoi (31°C)Osaka (29°C)Goa (30°C)Cusco (20°C)Buenos Aires (18°C)Mykonos (27°C)Zanzibar (27°C)Sri Lanka (30°C)Costa Rica (24°C)Cancun (31°C)Krabi (31°C)Athens (29°C)Seville (31°C)Cartagena (31°C)Siem Reap (31°C)Havana (31°C)Split (26°C)Taipei (31°C)Kuala Lumpur (32°C)Valletta (29°C)Ho Chi Minh City (32°C)Hawaii (31°C)Cappadocia (27°C)Dominican Republic (31°C)Jamaica (32°C)Tanzania (25°C)Seychelles (27°C)Jordan (32°C)Azores (25°C)Bora Bora (27°C)Los Angeles (28.1°C)Cairo (35.9°C)Kenya (25.3°C)Jaipur (32.1°C)Las Vegas (36.2°C)San Francisco (20.8°C)Madeira (26.5°C)Vancouver (19.2°C)Muscat (38.1°C)Lima (17.8°C)Cinque Terre (25°C)Kotor (27°C)Tel Aviv (30°C)Santiago (18°C)Bogotá (18°C)Bruges (19.2°C)Penang (31.8°C)Lombok (31°C)Cape Verde (29.2°C)Fez (32.8°C)Kerala (30°C)Kigali (27°C)Hong Kong (29°C)Oslo (18°C)Auckland (16°C)
Climate data: 30-year normals (1991–2020) from Open Meteo ERA5 reanalysis. Scores compare months within Nepal, not across destinations. Methodology →