Best Time to Visit Sikkim: Month-by-Month Weather Guide

Quick answer

The best time to visit Sikkim is March to May and October to mid-December. Spring brings rhododendrons in Yumthang and clear roads; autumn brings the sharpest Kanchenjunga views. Winter (December–February) is cold, and snow can close Nathula and North Sikkim for days. Avoid June to September, when monsoon landslides cut roads to Gangtok and the north.

Month-by-month at a glance

Jan13°Fair
Feb14°Fair
Mar18°Good
Apr21°Best
May22°Good
Jun23°Fair
Jul23°Avoid
Aug23°Avoid
Sep23°Fair
Oct21°Best
Nov18°Best
Dec14°Good

BestGoodFairAvoidTemperatures are average daily highs (°C).

Sikkim weather, crowds and what to expect

Monthly weather, crowds and our verdict
Month	High / Low	Rain	Crowds	What to expect
JanuaryFair	13° / 4°	25 mm	low	Cold and clear; snow often closes Nathula and the road beyond Lachung.
FebruaryFair	14° / 6°	55 mm	low	Snow likely at Tsomgo; Losar celebrations at monasteries.
MarchGood	18° / 9°	110 mm	medium	Roads to Tsomgo clear; early rhododendrons.
AprilBest	21° / 12°	240 mm	high	Rhododendron season in Yumthang and Barsey; some afternoon haze.
MayGood	22° / 14°	520 mm	high	School-holiday rush; Yumthang in flower; afternoon showers.
JuneFair	23° / 16°	600 mm	medium	Monsoon sets in; landslides begin on NH10 and in North Sikkim.
JulyAvoid	23° / 17°	650 mm	low	Heaviest rain; North Sikkim permits often suspended.
AugustAvoid	23° / 17°	560 mm	low	Wet and cloudy; mountain views are rare.
SeptemberFair	23° / 16°	450 mm	low	Rain eases late in the month; Pang Lhabsol.
OctoberBest	21° / 13°	150 mm	high	Clear Kanchenjunga views; Puja holiday crowds from Bengal.
NovemberBest	18° / 9°	40 mm	medium	Crisp and dry; the best views; cold nights in Lachung.
DecemberGood	14° / 6°	20 mm	medium	First snow at Zero Point and Nathula; Red Panda Winter Carnival in Gangtok.

Long-term monthly averages. Individual years vary — check a forecast in the week before you travel.

Festivals and events in Sikkim

February (about 7 February 2027)
Losar (Tibetan New Year)
Masked dances and prayers at Rumtek and other monasteries.
April–May
Rhododendron season
Yumthang Valley and the Barsey sanctuary in west Sikkim are at their best.
May–June (full moon)
Saga Dawa
Processions in Gangtok marking the Buddha's birth, enlightenment and parinirvana.
August–September
Pang Lhabsol
A Sikkim-only festival honouring Mount Kanchenjunga; warrior dances at monasteries.
December
Red Panda Winter Carnival
Food stalls, music and crafts in Gangtok in the run-up to Christmas.

When is the best time to visit Sikkim?

March to May and October to mid-December. The monthly figures are for Gangtok at about 1,650 m. Lachung, Tsomgo and Nathula are much colder: Tsomgo is around 3,750 m and Nathula about 4,310 m, so add a warm layer whatever the month.

Spring or autumn: which is better?

Factor	March–May	October–mid-December
Views	Hazier afternoons	Sharpest Kanchenjunga views
Flowers	Rhododendrons, primulas	Few
Snow at Zero Point	Patches until April	First snow from December
Crowds	High in May	High in October Puja week

Pick spring for the rhododendrons of Yumthang Valley. Pick late October to November if mountain views matter most: this is the clearest weather of the year.

Can you visit Sikkim in winter?

Yes. Gangtok stays at 4–14°C and is quiet, and you may see snow at Tsomgo. The catch is that Nathula and the road to Zero Point can shut for days after snowfall, and the army may stop vehicles beyond a point. Build in flexibility and don't promise children snow at Nathula.

Why skip the monsoon?

Gangtok gets 550–650 mm of rain a month from June to August. NH10 from Siliguri, the only main road in, is prone to landslides, and North Sikkim permits are often suspended. Lachen and the Gurudongmar route have been open on and off since the October 2023 Teesta flood. Check status a week before travel.

Nathula, Tsomgo and North Sikkim permits

Nathula is for Indian nationals only and is usually open Wednesday to Sunday. Permits for Nathula, Tsomgo and North Sikkim are issued through registered tour operators. Carry ID and passport photos. Hotels also collect a ₹50 per person Sikkim tourism fee at check-in.

Darjeeling pairs well with Sikkim in the same windows. See the best time to visit Darjeeling.

Plan with our 7-day Sikkim itinerary, the Sikkim trip cost guide, things to do in Sikkim and where to stay in Gangtok.

Frequently asked questions

Which month is best for snow in Sikkim?

December to February gives the best chance of snow at Tsomgo Lake, Nathula and Zero Point. Snow can also close those roads for days. March and early April often still have snow patches at Zero Point with better road access, which suits families who want to see snow without too much risk.

Is October a good time to visit Sikkim?

Yes. October is one of the best months: the monsoon has cleared, Kanchenjunga is visible most mornings and roads are open. The Durga Puja week brings big crowds from West Bengal, so book hotels and permits early for those dates.

Is Nathula open in winter?

Nathula usually stays open on its regular days (Wednesday to Sunday) in winter, but snow often closes it for days at a time. When that happens, operators usually still take you to Tsomgo Lake and Baba Mandir if the road is open that far. Keep a spare day in Gangtok.

Can I visit North Sikkim in the monsoon?

It is not advisable. From June to September landslides often close the North Sikkim Highway, and permits are suspended for days. Lachen and the Gurudongmar route have been especially unreliable since the 2023 Teesta flood. Plan Lachung and Yumthang for March–May or October–December instead.

How we checked this page

Last reviewed 28 October 2026

Written and fact-checked by the Elitech Travels editorial desk in New Delhi, drawing on our consultants' day-to-day booking work and the official sources below. Rules, fares and fees change — always confirm anything critical with the issuing authority before you travel. Our editorial policy.