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Gangtok, Sikkim Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Gangtok, Sikkim?
March is the warmest month (average high 33°C) and February the coldest (average low 13°C).
Gangtok climate at a glance
Gangtok weather by month
Gangtok weather in October
In October, Gangtok averages a high of 32°C and a low of 21°C. Estimated sunshine is 41% of daylight hours, derived from ERA5 cloud cover. The October record high is 38°C (2022) and the record low is 14°C (1983).
Sunshine, humidity and wind in Gangtok
November is the sunniest month in Gangtok, with estimated sunshine of 54% of daylight hours from ERA5 cloud cover. July is the cloudiest, at 4%. The annual cloud-cover estimate is 30% of daylight hours; it is not a measurement of sunshine duration. Gangtok is cloudier than 95% of India.
Humidity peaks in July at 90% and is lowest in April at 78%.
Gangtok has about 26 days a year above 32°C. Gangtok is cooler than 95% of India.
Gangtok weather records
These records cover SILIGURI during 1973–2025. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Gangtok station is 43°C, on August 18, 1983. The coldest is 0°C, on December 18, 1973.
The wettest day in the available station history brought 244 mm of precipitation, on July 12, 2020.
21 all-time records have been set at the station since 1973.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | — | — | 1.3 mm | 0 | 85% | 35% | 33° | 1° |
| February | 13° | — | 7.9 mm | 1 | 82% | 35% | 36° | 4° |
| March | — | 33° | 5.6 mm | 1 | 81% | 37% | 40° | 9° |
| April | — | 33° | 35 mm | 3 | 78% | 42% | 41° | 11° |
| May | — | — | 89 mm | 4 | 80% | 29% | 39° | 16° |
| June | — | — | 174 mm | 6 | 88% | 12% | 40° | 20° |
| July | 25° | — | 356 mm | 10 | 90% | 4% | 40° | 22° |
| August | 25° | — | 291 mm | 10 | 89% | 6% | 43° | 20° |
| September | 24° | — | 224 mm | 8 | 85% | 17% | 39° | 20° |
| October | 21° | 32° | 54 mm | 3 | 82% | 41% | 38° | 14° |
| November | 16° | — | 8.4 mm | 1 | 79% | 54% | 34° | 9° |
| December | — | — | — | — | 81% | 46% | 32° | 0° |
Station: SILIGURI, 82 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1973–2025; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Gangtok climate questions
What is the hottest month in Gangtok?
March is the warmest month in Gangtok, with an average high of 33°C.
What is the coldest month in Gangtok?
February is the coldest month in Gangtok, with an average low of 13°C.
What is the record high temperature in Gangtok?
Within the available 1973–2025 station history, the record high at the Gangtok station is 43°C, set on August 18, 1983. The record low is 0°C, on December 18, 1973.
What is the sunniest month in Gangtok?
November is the sunniest month in Gangtok, with estimated sunshine of 54% of daylight hours from ERA5 cloud cover. July is the cloudiest.