EBC Trek in September: Weather, Rain and What to Expect
September can be a good month for Everest Base Camp, but timing matters. The first half is often still wet from the monsoon, with cloud, rain on the lower trail and more Lukla flight delays. The second half usually clears up, and late September can give you good views before the October crowds arrive.
Our 14-day Everest Base Camp Trek costs USD 1,020 per person for groups of 4 to 9, USD 1,160 for 2 to 3 people and USD 1,440 for a solo trekker.
- Weather: wet early, usually clearing in the second half
- Monsoon end: usually late September or early October, changes each year
- Namche daytime: around 12°C to 16°C
- Gorak Shep and EBC at night: around -10°C to -5°C
- Snow: usually little on the main trail
- Crowds: quiet early, building towards the end of the month
- Leeches: possible in the forest below Namche early in the month
- Lukla flights: more delays early in the month, so plan spare days
- Sleeping bag: comfort rating around -10°C
- Booking: 2 to 3 months ahead for late September
Last updated: October 2026
In this guide
September is when the Khumbu shakes off the monsoon. The valleys are at their greenest, the waterfalls are full and the trails are quiet. But the weather is less settled than in October, so you need some flexibility.
If you’re still choosing a month, see our guide to the best time for the Everest Base Camp trek.
September Weather on the EBC Trek
Early September usually still feels like the monsoon. Cloud often sits in the valleys, and rain is common below Namche, mostly in the afternoon and overnight. Higher up it’s drier, but the mountains can hide behind cloud for days.
As the month goes on, the monsoon usually weakens. By the last week or so, mornings are often clear and the air is very clean after the rain. The exact timing changes each year.
| Location | Altitude | Daytime | Night |
|---|---|---|---|
| Namche Bazaar | 3,440m | 12°C to 16°C | 3°C to 7°C |
| Dingboche | 4,360m | 7°C to 12°C | -2°C to 2°C |
| Lobuche | 4,940m | 4°C to 8°C | -5°C to 0°C |
| Gorak Shep and EBC | 5,164m to 5,364m | 2°C to 6°C | -10°C to -5°C |
Early September vs Late September
| Early September (1 to 15) | Late September (16 onward) | |
|---|---|---|
| Rain | Common, especially lower down | Less, often clearing |
| Mountain views | Often cloudy | Often clear in the mornings |
| Lukla flights | More delays | Usually improving |
| Leeches below Namche | Possible | Fewer |
| Crowds | Very quiet | Building |
| Teahouse booking | Easy | Advisable above Namche |
If you can only go in September, aim for the second half. If quiet trails matter more than views, early September is very peaceful, but plan for rain and delays.
Trail Conditions in September
The lower trail from Lukla to Namche can be muddy and slippery early in the month, and there may be leeches in the forest. Above Namche the trail dries out faster, and the higher sections are usually free of snow.
Rivers and streams run high after the monsoon. The suspension bridges are fine, but small side streams can be fuller than usual. Your guide checks conditions each day.
Crowds and Booking
Early September is one of the quietest times on the trail. Numbers build quickly towards the end of the month as the October season starts.
For late September, we recommend booking 2 to 3 months ahead. When you book with us, we reserve teahouses for each night of your trek.
EBC Trek Cost in September
September doesn’t change the price. Our 14-day Everest Base Camp Trek costs:
| Group size | Price per person |
|---|---|
| 1 traveller | USD 1,440 |
| 2 to 3 travellers | USD 1,160 |
| 4 to 9 travellers | USD 1,020 |
The price includes Lukla flights, permits, guide, porter and teahouse rooms. See our EBC trek cost guide for what to budget on top, or check our fixed departures.
Lukla Flights in September
Lukla flights need clear weather, and cloud is common early in the month. Delays and cancellations are more likely than in October, so leave at least two spare days at the end of your trip before your flight home. Things usually improve later in the month.
Depending on the season, Lukla flights may run from Kathmandu or from Manthali Airport in Ramechhap. We confirm your airport and pickup time before your trek. See our guides to Lukla flight delays and Lukla flights via Ramechhap.
What to Pack for September
September needs gear for both rain and cold.
- A good waterproof jacket and rain trousers
- A pack cover and dry bags
- Quick-drying layers for the warm, wet lower trail
- A down jacket for evenings and the Kala Patthar morning
- A sleeping bag with a comfort rating around -10°C
- Long socks for the forest below Namche
- Waterproof boots that are already broken in
For the full list, see our EBC packing list.
Festivals in September
Indra Jatra usually falls in September in Kathmandu, with chariot processions and masked dances in the old city. Depending on the year, Dashain, Nepal’s biggest festival, can start in late September or early October. Check the dates for your trip.
Frequently Asked Questions
Is September a good month for Everest Base Camp?
Yes, especially the second half. Early September is often still wet, but late September usually brings clear mornings and quiet trails.
Is it still monsoon in September in the Everest region?
Often in the first half. The monsoon usually ends in late September or early October, but the timing changes each year.
Are Lukla flights reliable in September?
Less reliable than in October, especially early in the month. Leave at least two spare days before your flight home.
Will I see Everest in September?
Often, but less reliably than in October. Late September mornings are usually your best chance.
Are there leeches on the EBC trek in September?
Sometimes, in the forest below Namche early in the month. Long socks help.
Is September or October better for EBC?
October is more reliable for views and flights. September is quieter and greener. If you go in September, aim for the second half. See our guide to the EBC trek in October.
How much does the EBC trek cost in September?
The same as the rest of the year. USD 1,020 per person for 4 to 9 people, USD 1,160 for 2 to 3 and USD 1,440 solo.
