Summer
March to May
Weather: Pleasant and mild, with valleys warming up and skies staying mostly clear.
Season highlights
- Rhododendrons and orchids bloom across the hillsides.
- The best season for trekking to waterfalls, old Buddhist stupas and scenic monastery trails.
- Local festivals and cultural events bring extra life to towns like Gangtok.
Best for: Sightseeing, trekking and photography — the most popular season to visit.
Monsoon
June to September
Weather: Heavy seasonal rain and high humidity, with landslide risk on mountain roads.
Season highlights
- Landscapes turn a deep, lush green, with mist settling over hills and waterfalls.
- Far fewer tourists, so popular sites feel quieter and roads are less crowded.
- Roads can be slick or blocked by landslides — pack waterproof gear, keep plans flexible, and travel with local guidance.
Best for: Budget-conscious, offbeat travellers comfortable with unpredictable weather.
Winter
October to February
Weather: Cold, with heavy snowfall in North Sikkim, Lachung and Yumthang Valley.
Season highlights
- Crystal-clear Himalayan views on cold, sunny days.
- Snow-covered valleys give North Sikkim a winter-wonderland feel.
- A popular season for honeymoon trips, thanks to the cosy, festive atmosphere.
Best for: Honeymooners, winter-scenery seekers and anyone chasing snow.
Pick summer for flowers and trekking, monsoon for a quieter and greener trip, or winter for snow and clear mountain views — Sikkim rewards each season differently.
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