Climate averages 1991–2020
Gangtok weather
in August.
A mild, very wet month: one of the warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Gangtok: daytime highs average 21.2°C and nights cool to about 16.1°C. By daytime temperature it is one of the warmest months of the year.
Expect about 908 mm of rain on roughly 31 days, which makes August a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 06 min on an average August day.
The nearest other city in this atlas is Dārjiling (47 km away). In August its highs average 20.4°C, 0.9°C cooler than Gangtok, with 548 mm of rain.
Among the 692 cities listed in India, Gangtok ranks 689th of 692 for the warmest August highs and 692nd of 692 for the driest August (rainfall, lowest first). The mean August high of those 692 cities is 30.2°C; Gangtok is 9.0°C cooler than that mean.
From August to September, average highs fall by 0.8°C to 20.5°C, and monthly rainfall falls from 908 mm to 508 mm.
The annual picture
August 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, selected | 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 | 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
August in nearby cities
- Dārjiling in AugustIndia · 47 kmHigh 20.4°C · Low 15.8°C · 548 mm rain
- Siliguri in AugustIndia · 71 kmHigh 29.4°C · Low 24.5°C · 576 mm rain
- Jalpāiguri in AugustIndia · 91 kmHigh 30.3°C · Low 25.0°C · 669 mm rain
- Jaigaon in AugustIndia · 92 kmHigh 28.2°C · Low 24.3°C · 657 mm rain
- Thimphu in AugustBhutan · 103 kmHigh 19.4°C · Low 13.4°C · 350 mm rain
- Koch Bihār in AugustIndia · 139 kmHigh 31.0°C · Low 25.5°C · 590 mm rain
- Dharān in AugustNepal · 144 kmHigh 28.6°C · Low 24.1°C · 371 mm rain
- Thākurgaon in AugustBangladesh · 145 kmHigh 31.0°C · Low 25.4°C · 371 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.