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Gangtok, India climate
Cfb Oceanic / temperate
Gangtok has a mildly seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 18°C, while the coldest is January averaging around −5°C at night. Precipitation totals about 5074 mm a year and is strongly seasonal — July alone averages 1159 mm while December barely receives 153 mm. Snowfall is heavy (413 cm of snow per year on average).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation split into rain and snow · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Gangtok climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 6 | 8 | 11 | 14 | 16 | 18 | 18 | 17 | 16 | 14 | 11 | 8 |
| Avg temp (°C) | 1 | 2 | 5 | 8 | 11 | 14 | 14 | 14 | 12 | 9 | 6 | 3 |
| Avg low (°C) | −5 | −4 | −1 | 2 | 5 | 9 | 10 | 10 | 8 | 4 | 1 | −2 |
| Precipitation (mm) | 223 | 240 | 251 | 224 | 307 | 645 | 1159 | 961 | 529 | 216 | 165 | 153 |
| Snowfall (cm) | 23 | 28 | 51 | 77 | 74 | 23 | 27 | 25 | 29 | 30 | 17 | 10 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 6 | 8 | 11 | 14 | 16 | 18 |
| Avg temp (°C) | 1 | 2 | 5 | 8 | 11 | 14 |
| Avg low (°C) | −5 | −4 | −1 | 2 | 5 | 9 |
| Precipitation (mm) | 223 | 240 | 251 | 224 | 307 | 645 |
| Snowfall (cm) | 23 | 28 | 51 | 77 | 74 | 23 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 18 | 17 | 16 | 14 | 11 | 8 |
| Avg temp (°C) | 14 | 14 | 12 | 9 | 6 | 3 |
| Avg low (°C) | 10 | 10 | 8 | 4 | 1 | −2 |
| Precipitation (mm) | 1159 | 961 | 529 | 216 | 165 | 153 |
| Snowfall (cm) | 27 | 25 | 29 | 30 | 17 | 10 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with low ≤ 0°C (days) | 30 | 26 | 19 | 3 | 0.0 | — | — | — | — | 0.3 | 8 | 25 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with low ≤ 0°C (days) | 30 | 26 | 19 | 3 | 0.0 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with low ≤ 0°C (days) | — | — | — | 0.3 | 8 | 25 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 70 | 74 | 78 | 81 | 84 | 86 | 87 | 81 | 68 | 60 | 60 |
| Relative humidity (%) | 57 | 56 | 56 | 62 | 74 | 83 | 88 | 89 | 88 | 81 | 70 | 59 |
| Wind speed (m/s) | 1.2 | 1.5 | 1.7 | 1.8 | 1.9 | 1.9 | 1.8 | 1.7 | 1.5 | 1.2 | 1.1 | 1.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 70 | 74 | 78 | 81 | 84 |
| Relative humidity (%) | 57 | 56 | 56 | 62 | 74 | 83 |
| Wind speed (m/s) | 1.2 | 1.5 | 1.7 | 1.8 | 1.9 | 1.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 86 | 87 | 81 | 68 | 60 | 60 |
| Relative humidity (%) | 88 | 89 | 88 | 81 | 70 | 59 |
| Wind speed (m/s) | 1.8 | 1.7 | 1.5 | 1.2 | 1.1 | 1.0 |
Methodology & sources
Temperature & precipitation — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.