August is one of the cooler months of the year in Mumbai, with average highs near 29.6°C and lows around 23.4°C (mean 26.5°C). It is a relatively wet time of year, averaging 525 mm of rainfall and 90% relative humidity across the period.
August is one of the cooler months of the year in Mumbai. Across 45 years of records, the warmest August in Mumbai was 1998 — when the month averaged 28.2°C — while the coldest was 1986 at 25.1°C. Typical August days reach 29.6°C with nights near 23.4°C. The long-term trend is warming, about 0.2°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.1°C | 26.5°C | 26.5°C | 26.7°C | 27.0°C | +0.9°C |
| Avg High | 29.1°C | 29.6°C | 29.5°C | 29.9°C | 30.4°C | +1.3°C |
| Avg Low | 23.1°C | 23.4°C | 23.5°C | 23.6°C | 23.6°C | +0.5°C |
| Avg Rain | 478 mm | 424 mm | 592 mm | 535 mm | 632 mm | +153 mm |
August temperatures in Mumbai have risen by about 1.1°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 21.5°C (1986) to a record high of 32.5°C (1998).
Rainfall in August is a relatively wet time of year, averaging 525 mm, with a wettest year of 1203 mm.
A quieter season to visit Mumbai
If your dates are flexible, the more temperate months of December and January tend to be the most comfortable for visiting Mumbai. That said, August — with days averaging 29.6°C and nights around 23.4°C (mean 26.5°C) and higher rainfall (525 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 29.8°C | 24.0°C | 26.9°C | 776 mm | 91% | 3 m/s | 3.7 |
| 2024 | 31.6°C | 24.7°C | 28.1°C | 629 mm | 91% | 3.2 m/s | 4.4 |
| 2023 | 30.8°C | 23.5°C | 27.1°C | 225 mm | 89% | 3.2 m/s | 5.1 |
| 2022 | 30.7°C | 23.3°C | 27.0°C | 578 mm | 90% | 3.6 m/s | 4.4 |
| 2021 | 29.9°C | 22.0°C | 26.0°C | 379 mm | 89% | 2.4 m/s | 4.4 |
| 2020 🌧️ | 29.5°C | 24.2°C | 26.8°C | 1203 mm | 92% | 3.9 m/s | 3.5 |
| 2019 | 29.8°C | 23.6°C | 26.7°C | 660 mm | 91% | 3.5 m/s | 4.4 |
| 2018 | 28.8°C | 23.2°C | 26.0°C | 424 mm | 90% | 4 m/s | 4 |
| 2017 | 29.6°C | 22.7°C | 26.1°C | 669 mm | 90% | 3 m/s | 4.5 |
| 2016 | 29.2°C | 23.4°C | 26.3°C | 706 mm | 91% | 3.7 m/s | 4.1 |
| 2015 | 31.1°C | 23.9°C | 27.5°C | 123 mm | 87% | 2.7 m/s | 4.8 |
| 2014 | 31.6°C | 23.8°C | 27.7°C | 621 mm | 91% | 3.1 m/s | 4.3 |
| 2013 | 29.3°C | 23.7°C | 26.5°C | 239 mm | 90% | 3.3 m/s | 4.9 |
| 2012 | 29.6°C | 24.1°C | 26.8°C | 399 mm | 90% | 3.6 m/s | 4.2 |
| 2011 | 29.9°C | 23.9°C | 26.9°C | 641 mm | 91% | 3.5 m/s | 3.8 |
| 2010 | 29.8°C | 23.7°C | 26.8°C | 871 mm | 91% | 3.2 m/s | 4 |
| 2009 | 30.4°C | 24.2°C | 27.3°C | 402 mm | 89% | 3.1 m/s | 4.7 |
| 2008 | 30.0°C | 23.1°C | 26.6°C | 685 mm | 90% | 3.1 m/s | 4.3 |
| 2007 | 30.1°C | 23.9°C | 27.0°C | 611 mm | 91% | 3.7 m/s | 4 |
| 2006 | 28.5°C | 23.4°C | 25.9°C | 1056 mm | 92% | 4.1 m/s | 4 |
| 2005 | 29.4°C | 23.2°C | 26.3°C | 469 mm | 90% | 3.5 m/s | 4.4 |
| 2004 | 28.8°C | 23.1°C | 26.0°C | 955 mm | 91% | 4.2 m/s | 4.3 |
| 2003 | 29.4°C | 24.1°C | 26.7°C | 380 mm | 90% | 3.4 m/s | 4.5 |
| 2002 | 29.3°C | 23.0°C | 26.1°C | 580 mm | 90% | 3.6 m/s | 3.7 |
| 2001 | 29.0°C | 23.6°C | 26.3°C | 430 mm | 91% | 3.3 m/s | 4.4 |
| 2000 | 30.4°C | 23.3°C | 26.9°C | 358 mm | 88% | 3.5 m/s | 4.5 |
| 1999 | 29.5°C | 23.0°C | 26.2°C | 152 mm | 89% | 3.3 m/s | 4.6 |
| 1998 🔥 | 32.5°C | 23.9°C | 28.2°C | 433 mm | 91% | 3 m/s | 4.4 |
| 1997 | 29.0°C | 23.2°C | 26.1°C | 670 mm | 90% | 3.9 m/s | 4.9 |
| 1996 | 28.9°C | 23.0°C | 25.9°C | 341 mm | 91% | 3.4 m/s | 4.2 |
| 1995 | 30.7°C | 23.5°C | 27.1°C | 180 mm | 89% | 3.1 m/s | 5.1 |
| 1994 | 29.2°C | 23.5°C | 26.3°C | 418 mm | 91% | 3.9 m/s | 4.5 |
| 1993 | 29.4°C | 23.5°C | 26.5°C | 343 mm | 90% | 3.3 m/s | 5 |
| 1992 | 29.4°C | 23.4°C | 26.4°C | 641 mm | 90% | 3.4 m/s | 4.3 |
| 1991 | 28.6°C | 23.5°C | 26.0°C | 261 mm | 91% | 3.7 m/s | 4.5 |
| 1990 | 28.6°C | 23.5°C | 26.0°C | 798 mm | 92% | 3.8 m/s | 3.9 |
| 1989 | 28.5°C | 23.2°C | 25.9°C | 526 mm | 91% | 3.5 m/s | 4.4 |
| 1988 | 29.7°C | 24.1°C | 26.9°C | 291 mm | 91% | 3.2 m/s | 4.5 |
| 1987 | 30.0°C | 24.1°C | 27.0°C | 778 mm | 90% | 3.5 m/s | 4.2 |
| 1986 ❄️ | 28.7°C | 21.5°C | 25.1°C | 344 mm | 89% | 3.4 m/s | 4.9 |
| 1985 | 28.6°C | 22.6°C | 25.6°C | 375 mm | 90% | 3.3 m/s | 4.8 |
| 1984 | 28.6°C | 23.0°C | 25.8°C | 186 mm | 90% | 4 m/s | 4.7 |
| 1983 | 29.6°C | 23.5°C | 26.5°C | 801 mm | 91% | 3.5 m/s | — |
| 1982 | 28.8°C | 23.1°C | 25.9°C | 478 mm | 91% | 3.9 m/s | — |
| 1981 | 29.0°C | 22.6°C | 25.8°C | 525 mm | 90% | 4 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 29.6°C with lows near 23.4°C (mean 26.5°C), based on 45 years of NASA POWER data.
August averages 525 mm of rainfall in Mumbai, a relatively wet time of year. The wettest on record was 1203 mm in 2020.
The hottest August reached 32.5°C in 1998. The coldest dipped to 21.5°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.1°C. Daytime highs moved from 28.9°C to 30.6°C and overnight lows from 23°C to 23.5°C over the same span.
August is one of the cooler months of the year in Mumbai and a relatively wet time of year, so plan for around 29.6°C daytime highs and 23.4°C at night.
Not quite — August is the 5th coolest month in Mumbai, averaging 26.5°C.
For August in Mumbai, pack light layers you can adjust through the day, with typical highs of 29.6°C and lows of 23.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 90% — quite humid.
Average wind speed in August is 3.5 m/s. The windiest August on record averaged 4.2 m/s (2004).
The wettest August on record was 2020 with 1203 mm. On average, August sees 525 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 Mumbai 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.
