⛰ Seasonal Guide

Sikkim in December 2026 — Weather, Festivals & What to Pack

December is a moderate time to visit Sikkim. Weather has trade-offs; plan carefully. Here's the complete on-ground guide — weather data, festivals, what to do, what to pack, what to skip — based on our research and conversations with local operators.

📍 Updated May 2026 📖 7 min read 🌡 -2 to 12°C

Sikkim in December: average temperatures -2 to 12°C, weather cold but clear — winter peak. December is a moderate time to visit Sikkim. Weather has trade-offs; plan carefully. Main destinations: Gangtok, Pelling, Tsomgo Lake, North Sikkim.

Weather in Sikkim during December

Average temperatures across Sikkim in December sit around -2 to 12°C. The general character: cold but clear — winter peak.

Gangtok is at 1,650 m; North Sikkim crosses 14,000 ft (acclimatize 2 days first). Different altitudes within the state will feel noticeably different — coastal/lowland areas can be 10°C warmer than high-altitude passes on the same day.

Festivals and events in Sikkim in December

Hornbill Festival — December 1-10 in Nagaland — the biggest NE cultural event
Christmas — December 25 — Mizoram, Meghalaya, Nagaland celebrate

What to do in Sikkim in December

Highlight: Hornbill Festival is the must-attend cultural event. Kaziranga, Meghalaya and lowland Sikkim are perfect..

Watch out for: Sela Pass on Tawang road frequently closes due to snow; book Kohima accommodation by August.

Key destinations across Sikkim for this month: Gangtok, Pelling, Tsomgo Lake, North Sikkim. For a full multi-day itinerary, see our curated Sikkim tour package → or the in-depth state guides below.

What to pack for Sikkim in December

thermals, heavy jacket, gloves, woolen cap, hot water flask.

For the full Northeast India packing breakdown by season, see our complete packing guide.

Cost outlook for Sikkim in December

Shoulder-season pricing — moderate rates, more flexibility. See our complete budget guide for tier-by-tier daily costs.

Other guides for Sikkim

→ Sikkim 5-Day Itinerary → Sikkim Trip Cost for Couples → North Sikkim Permits → Complete Sikkim Travel Guide

FAQs — Sikkim in December

Is December a good time to visit Sikkim?

December weather in Sikkim averages -2 to 12°C. December is a moderate time to visit Sikkim. Weather has trade-offs; plan carefully.

What's the weather like in Sikkim during December?

Average temperatures range -2 to 12°C. The general character is cold but clear — winter peak. Gangtok is at 1,650 m; North Sikkim crosses 14,000 ft (acclimatize 2 days first).

What festivals happen in Sikkim in December?

Hornbill Festival (December 1-10 in Nagaland — the biggest NE cultural event), Christmas (December 25 — Mizoram, Meghalaya, Nagaland celebrate)

What should I pack for Sikkim in December?

thermals, heavy jacket, gloves, woolen cap, hot water flask

Should I book hotels in advance for Sikkim in December?

Yes — book 30-45 days ahead in peak season (October-December, March-May) and 7-14 days ahead in shoulder months. Major festivals require booking 60-90 days early.

Plan your Sikkim trip for December 2026

If December is your travel window, the best move now: lock accommodation, apply for permits if required, and book flights. Use our free trip planner — we'll send a custom Sikkim plan for your December dates within 24 hours.