August is one of the warmer months of the year in Kolkata, with average highs near 32.8°C and lows around 25.1°C (mean 29°C). It is a relatively wet time of year, averaging 300 mm of rainfall and 89% relative humidity across the period.
August is one of the warmer months of the year in Kolkata. Across 45 years of records, the warmest August in Kolkata was 2019 — when the month averaged 30.1°C — while the coldest was 1996 at 28.2°C. Typical August days reach 32.8°C with nights near 25.1°C. The long-term August temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.8°C | 28.8°C | 28.9°C | 29.2°C | 29.1°C | +0.3°C |
| Avg High | 32.8°C | 32.6°C | 32.8°C | 33.1°C | 32.9°C | +0.1°C |
| Avg Low | 24.9°C | 25.0°C | 25.0°C | 25.2°C | 25.3°C | +0.4°C |
| Avg Rain | 258 mm | 305 mm | 278 mm | 323 mm | 350 mm | +92 mm |
August temperatures in Kolkata have stayed relatively stable across the record.
August has ranged from a record low of 24.2°C (1986) to a record high of 34.4°C (2019).
Rainfall in August is a relatively wet time of year, averaging 300 mm, with a wettest year of 475 mm.
A quieter season to visit Kolkata
If your dates are flexible, the more temperate months of February and November tend to be the most comfortable for visiting Kolkata. That said, August — with days averaging 32.8°C and nights around 25.1°C (mean 29°C) and higher rainfall (300 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 32.5°C | 24.8°C | 28.7°C | 293 mm | 90% | 2.5 m/s | 3.8 |
| 2024 🌧️ | 32.5°C | 25.3°C | 28.9°C | 475 mm | 90% | 2.3 m/s | 3.5 |
| 2023 | 33.3°C | 25.1°C | 29.2°C | 303 mm | 86% | 2.5 m/s | 3.8 |
| 2022 | 33.5°C | 25.3°C | 29.4°C | 335 mm | 87% | 2.6 m/s | 4.2 |
| 2021 | 32.3°C | 25.5°C | 28.9°C | 297 mm | 91% | 2.5 m/s | 4 |
| 2020 | 33.4°C | 25.6°C | 29.5°C | 399 mm | 89% | 2.6 m/s | 3.9 |
| 2019 🔥 | 34.4°C | 25.7°C | 30.1°C | 378 mm | 86% | 2.4 m/s | 4 |
| 2018 | 32.8°C | 25.5°C | 29.1°C | 288 mm | 88% | 2.3 m/s | 4.3 |
| 2017 | 32.4°C | 25.4°C | 28.9°C | 297 mm | 90% | 2.3 m/s | 4.1 |
| 2016 | 33.2°C | 24.6°C | 28.9°C | 462 mm | 89% | 2.3 m/s | 4.3 |
| 2015 | 32.1°C | 24.9°C | 28.5°C | 223 mm | 89% | 2.5 m/s | 4.4 |
| 2014 | 32.9°C | 25.5°C | 29.2°C | 280 mm | 90% | 2.8 m/s | 4.5 |
| 2013 | 32.5°C | 25.5°C | 29.0°C | 384 mm | 90% | 2.6 m/s | 4.2 |
| 2012 | 33.1°C | 25.3°C | 29.2°C | 246 mm | 88% | 2.6 m/s | 4.3 |
| 2011 | 33.8°C | 24.5°C | 29.1°C | 456 mm | 91% | 2.6 m/s | 3.7 |
| 2010 | 34.2°C | 25.3°C | 29.7°C | 210 mm | 87% | 2.3 m/s | 4.7 |
| 2009 | 33.1°C | 24.8°C | 28.9°C | 397 mm | 90% | 2.4 m/s | 3.8 |
| 2008 | 32.2°C | 25.2°C | 28.7°C | 247 mm | 90% | 2.7 m/s | 4.2 |
| 2007 | 33.6°C | 24.5°C | 29.1°C | 258 mm | 90% | 2.3 m/s | 4.4 |
| 2006 | 32.2°C | 24.9°C | 28.6°C | 316 mm | 90% | 2.9 m/s | 4 |
| 2005 | 34.0°C | 25.2°C | 29.6°C | 294 mm | 87% | 2.4 m/s | 4.1 |
| 2004 | 32.0°C | 25.6°C | 28.8°C | 282 mm | 90% | 2.6 m/s | 4 |
| 2003 | 33.1°C | 24.6°C | 28.9°C | 184 mm | 89% | 2.9 m/s | 4.6 |
| 2002 | 32.2°C | 24.9°C | 28.5°C | 315 mm | 90% | 2.7 m/s | 4 |
| 2001 | 33.1°C | 25.5°C | 29.3°C | 254 mm | 91% | 2.3 m/s | 4.6 |
| 2000 | 32.5°C | 25.1°C | 28.8°C | 236 mm | 89% | 2.5 m/s | 4.6 |
| 1999 | 31.9°C | 25.0°C | 28.5°C | 351 mm | 91% | 2.7 m/s | 4.1 |
| 1998 | 32.8°C | 25.4°C | 29.1°C | 264 mm | 90% | 2.7 m/s | 3.8 |
| 1997 | 32.6°C | 25.3°C | 29.0°C | 464 mm | 91% | 2.6 m/s | 4 |
| 1996 ❄️ | 32.2°C | 24.2°C | 28.2°C | 428 mm | 90% | 2.7 m/s | 3.8 |
| 1995 | 32.3°C | 25.2°C | 28.8°C | 255 mm | 91% | 2.5 m/s | 4.2 |
| 1994 | 32.3°C | 25.1°C | 28.7°C | 301 mm | 90% | 2.9 m/s | 4 |
| 1993 | 32.8°C | 25.1°C | 29.0°C | 322 mm | 89% | 2.9 m/s | 3.8 |
| 1992 | 32.6°C | 24.5°C | 28.6°C | 263 mm | 89% | 2.6 m/s | 4.4 |
| 1991 | 33.4°C | 25.1°C | 29.2°C | 189 mm | 88% | 2.6 m/s | 4.3 |
| 1990 | 32.6°C | 24.9°C | 28.7°C | 209 mm | 89% | 2.6 m/s | 4.7 |
| 1989 | 32.2°C | 24.6°C | 28.4°C | 182 mm | 89% | 2.7 m/s | 4.8 |
| 1988 | 32.4°C | 25.2°C | 28.8°C | 157 mm | 89% | 2.9 m/s | 3.6 |
| 1987 | 32.6°C | 25.1°C | 28.9°C | 294 mm | 87% | 2.8 m/s | 4.4 |
| 1986 | 33.1°C | 24.2°C | 28.7°C | 138 mm | 86% | 2.6 m/s | 5 |
| 1985 | 33.4°C | 25.0°C | 29.2°C | 305 mm | 86% | 2.8 m/s | 4.6 |
| 1984 | 32.7°C | 25.1°C | 28.9°C | 329 mm | 89% | 2.7 m/s | 3.8 |
| 1983 | 33.4°C | 24.6°C | 29.0°C | 153 mm | 85% | 3.3 m/s | — |
| 1982 | 32.4°C | 25.1°C | 28.8°C | 424 mm | 90% | 2.9 m/s | — |
| 1981 | 32.7°C | 24.8°C | 28.8°C | 341 mm | 89% | 2.7 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 32.8°C with lows near 25.1°C (mean 29°C), based on 45 years of NASA POWER data.
August averages 300 mm of rainfall in Kolkata, a relatively wet time of year. The wettest on record was 475 mm in 2024.
The hottest August reached 34.4°C in 2019. The coldest dipped to 24.2°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 0.1°C. Daytime highs moved from 32.9°C to 32.8°C and overnight lows from 24.9°C to 25.2°C over the same span.
August is one of the warmer months of the year in Kolkata and a relatively wet time of year, so plan for around 32.8°C daytime highs and 25.1°C at night.
Not quite — August is the 8th coolest month in Kolkata, averaging 29°C.
For August in Kolkata, pack light, breathable clothing and sun protection, with typical highs of 32.8°C and lows of 25.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 89% — quite humid.
Average wind speed in August is 2.6 m/s. The windiest August on record averaged 3.3 m/s (1983).
The wettest August on record was 2024 with 475 mm. On average, August sees 300 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Kolkata behaves each August, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for August specifically, along with year-by-year records and how the month has changed over the decades.
