January
Good time to goCold and relatively dry; max 13°C, min 4°C, 16 mm rain
Clear views possible, but high-altitude routes can be snowbound
February
Good time to goCool and increasingly pleasant; max 15°C, min 6°C, 24 mm rain
Occasional snow and access restrictions remain possible in North and East Sikkim
March
Best time to goImproving visibility and rhododendron blooms; max 19°C, min 9°C, 52 mm rain
Crowdsmoderate
Pricesmoderate
Strong shoulder season for flowers and sightseeing
April
Best time to goMax 22°C, min 12°C, 104 mm rain; intermittent showers begin
Crowdsmoderate
Pricesmoderate
One of the best months for Gangtok, Pelling and flower viewing
May
Good time to goWarm and green; max 24°C, min 15°C, 218 mm rain
Popular, but showers increase and mountain visibility becomes less consistent
June
Shoulder seasonMonsoon onset; max 24°C, min 18°C, 479 mm rain
Frequent rain can affect roads, permits and high-altitude excursions
July
Not recommendedWettest period; max 24°C, min 19°C, 625 mm rain
Landslides, road closures and cloud cover make sightseeing unreliable
August
Not recommendedVery wet with persistent cloud; max 24°C, min 19°C, 565 mm rain
Allow substantial schedule flexibility; sightseeing plans are frequently disrupted
September
Shoulder seasonRain declines late in the month; max 24°C, min 18°C, 391 mm rain
Road and visibility conditions remain variable; late September improves
October
Best time to goExcellent post-monsoon; max 22°C, min 14°C, 124 mm rain
Clear views, festivals and broad route access; peak demand for vehicles and hotels
November
Best time to goDry and crisp; max 18°C, min 9°C, 28 mm rain
Excellent for sightseeing, with colder nights at elevation
December
Good time to goDry and scenic in lower areas; max 14°C, min 5°C, 11 mm rain
Cold conditions and possible snow affect northern routes; Christmas–New Year demand is high
- BestMar, Apr, Oct, Nov
- GoodJan, Feb, May, Dec
- FairJun, Sep
- AvoidJul, Aug