Climate averages 1991–2020
Kolkata weather
in August.
A hot, very wet month: the 6th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Kolkata: daytime highs average 30.9°C and nights cool to about 25.9°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 308 mm of rain on roughly 29 days, which makes August a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 55 min on an average August day.
The nearest other city in this atlas is Howrah (5 km away). In August its highs average 30.9°C, about as warm as Kolkata, with 308 mm of rain.
Among the 692 cities listed in India, Kolkata ranks joint 316th of 692 for the warmest August highs and joint 558th of 692 for the driest August (rainfall, lowest first). The mean August high of those 692 cities is 30.2°C; Kolkata is 0.6°C warmer than that mean.
From August to September, average highs fall by 0.1°C to 30.8°C, and monthly rainfall falls from 308 mm to 250 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
Kolkata climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.0°C13.2°C | 13.2°C | 13 | 1.7 | 10.911 h |
| February | 28.5°C16.7°C | 16.7°C | 24 | 2.6 | 11.411 h |
| March | 33.0°C21.6°C | 21.6°C | 30 | 4.2 | 12.012 h |
| April | 35.2°C25.3°C | 25.3°C | 68 | 8.6 | 12.713 h |
| May | 34.9°C26.9°C | 26.9°C | 122 | 11.7 | 13.213 h |
| June | 32.8°C27.1°C | 27.1°C | 265 | 21.8 | 13.513 h |
| July | 31.1°C26.2°C | 26.2°C | 348 | 28.6 | 13.413 h |
| August, selected | 30.9°C25.9°C | 25.9°C | 308 | 29.2 | 12.913 h |
| September | 30.8°C25.4°C | 25.4°C | 250 | 24.9 | 12.312 h |
| October | 30.2°C23.3°C | 23.3°C | 131 | 12.9 | 11.612 h |
| November | 28.4°C18.7°C | 18.7°C | 29 | 2.1 | 11.111 h |
| December | 25.7°C14.5°C | 14.5°C | 10 | 1.0 | 10.811 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
- Howrah in AugustIndia · 5 kmHigh 30.9°C · Low 25.9°C · 308 mm rain
- Maheshtala in AugustIndia · 13 kmHigh 30.8°C · Low 25.9°C · 308 mm rain
- Pānihāti in AugustIndia · 14 kmHigh 30.9°C · Low 25.9°C · 289 mm rain
- Rajpur Sonarpur in AugustIndia · 16 kmHigh 30.8°C · Low 25.9°C · 307 mm rain
- Rishra in AugustIndia · 18 kmHigh 31.0°C · Low 25.8°C · 289 mm rain
- Budge Budge in AugustIndia · 21 kmHigh 30.8°C · Low 25.9°C · 308 mm rain
- Shrīrāmpur in AugustIndia · 21 kmHigh 31.0°C · Low 25.8°C · 289 mm rain
- Bārāsat in AugustIndia · 21 kmHigh 30.9°C · Low 25.9°C · 290 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 Kolkata) is explained once on the Kolkata year overview and on the Sources, method and limits page.
Howrah, Maheshtala and Budge Budge lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.