Best Time for the Kanchenjunga Base Camp Trek: Month by Month for 2027

Updated 27 October 2026.

Short answer: The best months for the Kanchenjunga base camp trek are October and November, then March to May. December to February is very cold at the high camps and some of the highest lodges close. June to mid-September is monsoon, with leeches and landslides on the approach. Our 19-day trek to Pangpema (5,143 m) and the south base camp costs USD 1,655 Budget, USD 3,070 Standard and USD 4,715 Luxury per person for two to four people.

I am Shreejan. Most people who write to me about Kanchenjunga have already done their reading on Everest or Annapurna, and they assume the seasons work the same way. Mostly they do, but this is the far east of Nepal, closer to the Bay of Bengal, and the trek is long and remote. Below I go month by month for 2027 and mark what comes from published records and what is only an operator's estimate.

Kanchenjunga trek facts that decide the season

Fact	Detail
Length	19 days, Kathmandu to Kathmandu
Highest point	Pangpema, the north base camp, 5,143 m
Other base camp	South base camp, 4,730 m on our itinerary, reached from Ramche (4,610 m)
Pass	Sele Le, 4,290 m on our itinerary (some guides list it higher)
Start and finish	Taplejung (1,800 m) in, Yamphuding then Illam out
Best months	October to November, March to May
Permits	Restricted area permit, KCAP and TIMS, all handled by us
Group size	1 to 20

The walk climbs from 1,650 m at Shekathum to Ghunsa at 3,415 m, then on to Lhonak at 4,792 m. That spread is why one temperature for "Kanchenjunga" means very little. The first days can be warm and wet while Lhonak is below freezing.

What do the weather records say?

I could not find a published weather record for Ghunsa, Lhonak or Pangpema. The closest long record I found is Ilam, 1,300 m, which is on our way out on day 18. The table is the Ilam Tea Estate average for 1976 to 2005 as listed on Wikipedia, which credits Agricultural Extension in South Asia. I have not checked the original dataset.

Month	Ilam high / low	Ilam rain
January	16.1 / 9.2 °C	13.6 mm
February	17.9 / 10.6 °C	16.3 mm
March	22.0 / 14.2 °C	24.9 mm
April	24.9 / 16.8 °C	61.6 mm
May	25.2 / 18.0 °C	132.5 mm
June	25.5 / 19.7 °C	295.8 mm
July	24.8 / 19.8 °C	466.7 mm
August	25.2 / 20.0 °C	366.2 mm
September	24.7 / 19.1 °C	229.9 mm
October	23.6 / 17.2 °C	73.4 mm
November	21.2 / 14.2 °C	12.6 mm
December	18.0 / 11.0 °C	10.4 mm

Read it for the rain pattern only. Ilam gets about 467 mm in July and about 13 mm in November. The mountain temperatures are far lower than these.

Kanchenjunga trek best time, month by month for 2027

For the high camps I use the figures on our own package page, which are estimates from guiding, not station data. Operator blogs agree on the general shape, but none that I read gave numbers for Ghunsa or Lhonak.

Month	What to expect	Verdict
January	Our package page puts high camps at -10 to -20 °C. Heavy snow can close Sele Le. Some of the highest lodges close.	Experienced and well-equipped only
February	Still deep winter above Ghunsa. Lower valleys are dry (Ilam about 16 mm).	As January
March	Days warm up in the valleys. Snow high up, nights freezing.	Good from mid-March
April	Rhododendron flowers on the lower slopes. More afternoon cloud.	Very good
May	Warmest month. Ilam rain rises to about 133 mm as the monsoon approaches.	Good, drier early in the month
June	Monsoon. Ilam about 296 mm. Leeches, slippery trail, landslides.	Avoid
July	Wettest month. Ilam about 467 mm.	Avoid
August	Ilam about 366 mm.	Avoid
September	Monsoon tails off. Ilam still about 230 mm.	Not before late September
October	Rain drops to about 73 mm. Clear air, stable weather.	Best
November	Driest of the main months (about 13 mm). Nights at altitude very cold.	Best
December	Dry but cold. Lodges above Ghunsa may be closed.	Only with a guide who confirms lodges

Autumn, October and November

This is the season I send most people in. Our package page gives daytime 10 to 15 °C at lower elevations and 5 to 10 °C above 4,000 m, with nights at altitude down to -10 °C or lower. Those are our estimates.

The cost of a good season is that the lodges at Lhonak and the south side are small. In a busy week they fill. Book early.

Spring, March to May

Spring is warmer in the valleys. Our page gives 15 to 20 °C there and 5 to 12 °C by day at the high camps, with a higher chance of afternoon cloud and snow showers. Nights still freeze. One operator guide I read says rhododendrons flower heavily from late March into April. I have not checked this against a botanical source, so treat it as a general pattern.

Late March is the risky end. Sele Le can still hold snow, and I would ask the lodges whether they are open before fixing a date. April and early May are the easier part.

Winter and monsoon

Winter is possible, but it is a different trek. Heavy snow on Sele Le is a real stop, and I will turn a group round rather than push.

The monsoon I avoid completely on this route. The trail is long, the slopes are steep, and the approach is wet for months.

Getting there and what it costs

The trek starts at Taplejung. You either fly Kathmandu to Bhadrapur and drive, or go overland. Our package page says Luxury flies to Bhadrapur and uses a private vehicle, while Budget and Standard go by road. The day-by-day itinerary on the page also shows the Bhadrapur flight, so ask me which version applies to your dates before you book.

There is a small airfield at Suketar, Taplejung. On 28 September 2026 ekantipur reported that Kathmandu to Taplejung flights restarted after a four-month break, with regular flights planned on Mondays, Thursdays and Saturdays from October. I do not build any trek around that flight. It has stopped for months before and I have not checked the winter or 2027 schedule.

The 2027 prices from our live package page, per person, for two to four people:

Tier	2 to 4 people	1 person
Budget	USD 1,655	USD 2,930
Standard	USD 3,070	USD 4,155
Luxury	USD 4,715	USD 7,130

Prices do not change by month. Permits are in the price: the restricted area permit is USD 20 per week for the first four weeks, the Kanchenjunga Conservation Area permit is NPR 2,000 and the TIMS card is NPR 2,000. The fees come from the Department of Immigration and the Nepal Tourism Board. Kathmandu hotels are extra, and you should plan roughly USD 20 a day for personal spending on the trail.

Since 22 March 2026 the Department of Immigration lets one trekker get the permit, through a registered agency and with a licensed guide. You never walk apart from the guide in this area. Standard has one porter per two guests, so each guest gives 10 kg. Luxury has your own porter, up to 20 kg for your bag. Budget has no porter.

Insurance should cover the highest point, 5,143 m, rounded up to 5,500 m. Buy it at home. The deposit is 10% and the balance is paid in Kathmandu in USD or EUR. Card on the balance carries 3.5%.

For distances and daily hours read the distance and difficulty guide. For lodges and the new teahouse route read what changed in 2026. For cost detail see the cost breakdown, and for the pass day read the Sele Le pass post. If you are choosing between two quiet routes, there is a Kanchenjunga and Manaslu comparison. The trek itself is here: Kanchenjunga Base Camp Trek, 19 days.

When is the best time to trek to Kanchenjunga base camp?

October and November, then mid-March to May. Autumn is the most stable. Spring is warmer and has flowers lower down, but more cloud.

Can you trek Kanchenjunga in winter?

Yes, but only if you are experienced and well equipped. Our package page puts high camps at -10 to -20 °C, snow can close Sele Le, and lodges above Ghunsa may be shut. I would want a firm yes from the lodges before agreeing to any December to February date.

Is Kanchenjunga trek possible in the monsoon?

It is possible on paper, but I do not run it. Ilam gets about 467 mm of rain in July, and the approach has leeches and landslide risk.

Which is better for Kanchenjunga, March or October?

October for clear weather and the most reliable days. Early spring has more snow high up and some lodges may not have opened. Choose March only if October is full or you want flowers.

Do I need a permit, and can I go alone?

You need the restricted area permit, the conservation area permit and TIMS. A single trekker can get the restricted permit since 22 March 2026, but only through a registered agency and with a licensed guide. We file all of it.

How cold does Kanchenjunga base camp get?

In autumn our estimate is nights down to -10 °C or lower at altitude. In winter it is -10 to -20 °C at the high camps. These are not station readings. Bring a proper sleeping bag.

How many days do I need, and is it too hard?

Our trek is 19 days and the pages call it very strenuous. Days run long, with the longest on our itinerary being 21.6 km from Lhonak to Ghunsa. Come with weeks of hill walking behind you.

What does the Kanchenjunga trek cost in 2027?

From USD 1,655 Budget, USD 3,070 Standard and USD 4,715 Luxury per person for two to four people. A solo trekker pays USD 2,930, USD 4,155 and USD 7,130. International flights, Kathmandu hotels, insurance and personal spending are extra.

If you tell me your dates and group size on WhatsApp at +977 9810351300, I will tell you which month suits you and whether the lodges should be open.