Best time
October to April is the best time for most of North East India, with dry roads, clear mountain views and the Kaziranga safari season, which usually runs from about November to April or May. October, November and March to May are the most comfortable months everywhere; December to February is cold, with snow at Tawang, Tsomgo Lake and in North Sikkim and freezing nights up high. June to September is the monsoon, when Meghalaya's waterfalls are at their fullest but landslides can close the hill roads in Sikkim and Arunachal and Kaziranga is shut.
- October to November, 8 to 26°C: The best all-round weeks: clear Kanchenjunga and Tawang views, the Meghalaya waterfalls still full and the Umngot at Dawki turning clear. The Durga Puja and Diwali weeks are busy in Sikkim and Darjeeling, and Kaziranga's safari season usually opens from about November.
- December to February, -5 to 20°C: Cold, dry and clear: snow at Sela Pass and Tawang, Tsomgo Lake and Lachung, and freezing nights up high, while Shillong and Guwahati are cool and pleasant. Heavy snow can hold the Tawang and North Sikkim roads for a day, so keep a spare day. Christmas and New Year are the busiest weeks.
- March to May, 10 to 30°C: Spring: rhododendrons in the Yumthang Valley and on the Arunachal passes, mild days in the hills and the last weeks of the Kaziranga season. Pre-monsoon showers start in Meghalaya in April and May, and Guwahati warms up.
- June to September, 15 to 33°C: The monsoon: Meghalaya is one of the wettest places on earth and its waterfalls are at their fullest, but landslides can close the hill roads in Sikkim and Arunachal, the Umngot turns murky and Kaziranga is shut, so plans need spare days.
What to pack
Pack for the highest place on your trip. For Meghalaya and Assam, light layers and a fleece, a rain jacket or umbrella in every month, shoes with a good grip for the root-bridge steps, and sandals and quick-dry clothes for Dawki and Krang Suri. For Tawang, Sikkim and Darjeeling, add thermals, a down or padded jacket, gloves and a woollen cap, warmest from November to March, and sunglasses and sunscreen for the high lakes. Everywhere: a government photo ID (several copies for the permits), passport-size photos for the Sikkim and Arunachal permits, motion-sickness tablets for the hill roads, a power bank, and some cash, because ATMs and phone signal thin out between the towns.
Getting there
From Hyderabad, fly to Guwahati for the Meghalaya, Assam and Arunachal trips, non-stop or with one stop through Kolkata or Delhi depending on the day, or to Bagdogra for the Sikkim and Darjeeling trips: as of September 2026 there are two daily non-stops to Bagdogra of about 2 hours 15 to 30 minutes. Your private cab meets you at the airport or at Guwahati or NJP railway station; Shillong is about three hours from Guwahati and Gangtok about four to five hours from Bagdogra. The train takes well over a day, so most travellers fly.
From Bengaluru, fly to Guwahati, non-stop or through Kolkata or Delhi depending on the day, for the Meghalaya, Assam and Arunachal trips, or to Bagdogra for Sikkim and Darjeeling: as of September 2026 there is one early-morning non-stop of about 2 hours 50 minutes, and the other options connect. The trip starts at the airport or station with your private cab; trains to Guwahati take more than two days.
From Chennai, fly to Guwahati, directly or through Kolkata, Delhi or Bengaluru depending on the day, for the Meghalaya, Assam and Arunachal trips. For Sikkim and Darjeeling, fly to Bagdogra through Kolkata or Hyderabad; as of September 2026 booking sites showed no non-stop. Every trip starts at the airport or railway station with a private cab.
Permits and fees
Indian citizens need no permit for Assam or Meghalaya, or to enter Sikkim; carry a government photo ID. Arunachal Pradesh needs an Inner Line Permit for Indian visitors, issued online through the state's eILP portal (eilp.arunachal.gov.in), and the Arunachal trips on this page include it or help you apply. Nagaland usually asks Indian visitors from outside the state for an Inner Line Permit as well, applied for online, and the 18 day trip covers the permits for its Nagaland days. In Sikkim, Tsomgo Lake, Nathula and North Sikkim are protected areas whose permits are usually issued only through a registered tour operator, and the trips that go there arrange them. Bum La near Tawang needs army permission and fair weather on the day and is open to Indian citizens only. Foreign nationals need a Protected Area Permit for Arunachal and a Restricted Area Permit for Sikkim, and some high areas stay closed to them; tell the planner before booking. Rules change, so confirm before you book.