Climate averages 1991–2020
Gangtok weather
in December.
A cool, wet month: the 10th warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cool month in Gangtok: daytime highs average 12.4°C and nights cool to about 5.9°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 173 mm of rain on roughly 23 days, which makes December a wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 27 min on an average December day.
The nearest other city in this atlas is Dārjiling (47 km away). In December its highs average 12.4°C, about as warm as Gangtok, with 17 mm of rain.
Among the 692 cities listed in India, Gangtok ranks joint 687th of 692 for the warmest December highs and 689th of 692 for the driest December (rainfall, lowest first). The mean December high of those 692 cities is 25.6°C; Gangtok is 13.2°C cooler than that mean.
From December to January, average highs fall by 1.5°C to 10.9°C, and monthly rainfall rises from 173 mm to 253 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Gangtok climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 10.9°C3.5°C | 3.5°C | 253 | 25.6 | 10.611 h |
| February | 12.3°C4.2°C | 4.2°C | 269 | 24.7 | 11.211 h |
| March | 16.1°C6.8°C | 6.8°C | 252 | 26.4 | 12.012 h |
| April | 18.9°C9.6°C | 9.6°C | 211 | 24.6 | 12.813 h |
| May | 20.2°C13.0°C | 13.0°C | 283 | 29.4 | 13.513 h |
| June | 21.2°C15.9°C | 15.9°C | 605 | 29.5 | 13.814 h |
| July | 21.0°C16.3°C | 16.3°C | 1,126 | 31.0 | 13.714 h |
| August | 21.2°C16.1°C | 16.1°C | 908 | 30.8 | 13.113 h |
| September | 20.5°C15.2°C | 15.2°C | 508 | 28.4 | 12.312 h |
| October | 18.6°C12.3°C | 12.3°C | 216 | 23.0 | 11.512 h |
| November | 15.2°C8.6°C | 8.6°C | 181 | 21.0 | 10.811 h |
| December, selected | 12.4°C5.9°C | 5.9°C | 173 | 22.8 | 10.510 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Dārjiling in DecemberIndia · 47 kmHigh 12.4°C · Low 4.2°C · 17 mm rain
- Siliguri in DecemberIndia · 71 kmHigh 23.3°C · Low 12.0°C · 8.8 mm rain
- Jalpāiguri in DecemberIndia · 91 kmHigh 24.2°C · Low 13.3°C · 3.4 mm rain
- Jaigaon in DecemberIndia · 92 kmHigh 21.9°C · Low 14.0°C · 6.3 mm rain
- Thimphu in DecemberBhutan · 103 kmHigh 9.4°C · Low 1.1°C · 59 mm rain
- Koch Bihār in DecemberIndia · 139 kmHigh 24.6°C · Low 13.4°C · 5.6 mm rain
- Dharān in DecemberNepal · 144 kmHigh 21.4°C · Low 11.0°C · 4.6 mm rain
- Thākurgaon in DecemberBangladesh · 145 kmHigh 24.7°C · Low 13.1°C · 4.2 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Gangtok) is explained once on the Gangtok year overview and on the Sources, method and limits page.