SeasonMapNamche Bazaar (Everest Base Camp) weather in September
Nepal
September in Namche Bazaar: cool, soaked, with clean air — fine if you can take 27 rainy days.
#8 of 12 months in Namche Bazaar · #892 of 1383 destinations to visit in September · comfort 73/100 (tier B)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Namche Bazaar in September
No notes yet. Open Namche Bazaar on the map to add the first one.
Namche Bazaar climate normals — September
| Daytime high | 13°C / 55°F | 🙂 cool |
|---|---|---|
| Nighttime low | 8°C / 47°F | |
| Rainfall | 221 mm / 8.7 in | ⛈ soaked |
| Rainy days | 27 days | |
| Humidity | 88% | 💦 very humid |
| Dew point | 9°C / 47°F | |
| Sunshine | 7.2 h/day | |
| Daylight | 12.3 h | |
| Wind | 6 km/h / 4 mph | |
| Snowfall | 13.8 cm / 5.4 in | |
| Air quality (US AQI) | 39 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Namche Bazaar in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyAutumn trekking season, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Namche Bazaar's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherNamche Bazaar's best weather comes in April, October and November — separate windows, not one continuous season.
Best weatherFair weatherToughest weather
What's on in Namche Bazaar in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Rule
Park entry and municipality fee
1 Jan – 31 DecBook earlySagarmatha National Park entry is paid at the Monjo gate and the Khumbu rural municipality charges its own fee on top, collected at Lukla. Neither is issued further up the trail, and the old TIMS card does not cover this valley. Source ↗
- Season
Monsoon in the Khumbu
15 Jun – 10 Sep · usuallyClosuresRiskCloud sits in the valley, the Lukla flights are cancelled for days at a time, and the trail below Namche is mud and leeches. A few lodges stay open and the mountains are behind cloud when you get to them.
- Season
Autumn trekking season
25 Sep – 20 NovTrail seasonCrowdedBook earlyThe busiest weeks on the trail and the clearest air of the year. Namche is the compulsory acclimatisation stop, so every lodge here is full, and a day of bad weather at Lukla backs the whole valley up behind it.
- Season
Wet season
MonsoonRisk27 rainy days and about 221 mm in the month — the real kind of rainy season, not afternoon showers.
from the climate normals
Nearby, and something's on
Within 300 km of Namche Bazaar — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Namche Bazaar?
Namche Bazaar in September — FAQ
- Is September a good time to visit Namche Bazaar?
- September in Namche Bazaar: cool, soaked, with clean air — fine if you can take 27 rainy days. It ranks #8 of 12 months for Namche Bazaar on SeasonMap's comfort score (73/100).
- What is the weather like in Namche Bazaar in September?
- In September, Namche Bazaar averages a daily high of 13°C and a low of 8.2°C, with about 221.2 mm of rain over roughly 27 rainy days.
- What is the air quality in Namche Bazaar in September?
- Namche Bazaar has a mean US Air Quality Index of about 39 in September.
- Does it snow in Namche Bazaar in September?
- Namche Bazaar sees roughly 13.8 cm of snowfall in September.
Other months in Namche Bazaar
Compare Namche Bazaar in September
Warmer or cooler than Namche Bazaar in September
Similar destinations in South Asia — September
Within 300 km: Kathmandu's Indra Jatra on 19–27 Sep, and Thimphu's Thimphu Tshechu on 21–23 Sep.