August is one of the cooler months of the year in Coimbatore, with average highs near 29.9°C and lows around 19.5°C (mean 24.7°C). It is a relatively wet time of year, averaging 136 mm of rainfall and 86% relative humidity across the period.
August is one of the cooler months of the year in Coimbatore. Across 45 years of records, the warmest August in Coimbatore was 2023 — when the month averaged 26.9°C — while the coldest was 1997 at 23.3°C. Typical August days reach 29.9°C with nights near 19.5°C. The long-term trend is warming, about 0.3°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 24.3°C | 24.2°C | 24.8°C | 25.1°C | 25.3°C | +1°C |
| Avg High | 29.4°C | 29.0°C | 30.2°C | 30.5°C | 30.8°C | +1.4°C |
| Avg Low | 19.2°C | 19.4°C | 19.4°C | 19.8°C | 19.8°C | +0.6°C |
| Avg Rain | 138 mm | 115 mm | 124 mm | 151 mm | 161 mm | +23 mm |
August temperatures in Coimbatore have risen by about 1.4°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 18.5°C (1983) to a record high of 33.8°C (2023).
Rainfall in August is a relatively wet time of year, averaging 136 mm, with a wettest year of 286 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.5°C per decade while lows rose 0.2°C per decade, widening the gap between day and night.
A good time to visit Coimbatore
August is a good time to visit Coimbatore, with days averaging 29.9°C and nights around 19.5°C (mean 24.7°C, close to Coimbatore's yearly average) and higher rainfall. December and January are marginally more temperate, but August still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 30.7°C | 19.7°C | 25.2°C | 107 mm | 85% | 2.7 m/s | 4.2 |
| 2024 | 29.9°C | 20.6°C | 25.2°C | 172 mm | 88% | 2.1 m/s | 4.6 |
| 2023 🔥 | 33.8°C | 20.0°C | 26.9°C | 61 mm | 78% | 2.6 m/s | 5.7 |
| 2022 🌧️ | 29.9°C | 19.6°C | 24.8°C | 286 mm | 88% | 2.6 m/s | 4.4 |
| 2021 | 30.0°C | 18.6°C | 24.3°C | 145 mm | 85% | 2.6 m/s | 4.5 |
| 2020 | 30.4°C | 20.5°C | 25.5°C | 194 mm | 88% | 2.9 m/s | 4.6 |
| 2019 | 30.3°C | 20.2°C | 25.2°C | 285 mm | 87% | 3.4 m/s | 3.7 |
| 2018 | 28.9°C | 19.1°C | 24.0°C | 224 mm | 88% | 3.5 m/s | 4 |
| 2017 | 30.3°C | 20.1°C | 25.2°C | 175 mm | 86% | 2.6 m/s | 4.3 |
| 2016 | 31.6°C | 19.5°C | 25.5°C | 70 mm | 82% | 3.2 m/s | 4.8 |
| 2015 | 33.2°C | 20.3°C | 26.7°C | 71 mm | 79% | 2.7 m/s | 5 |
| 2014 | 29.2°C | 19.8°C | 24.5°C | 214 mm | 88% | 2.8 m/s | 4.2 |
| 2013 | 30.2°C | 19.9°C | 25.1°C | 109 mm | 87% | 2.8 m/s | 4.5 |
| 2012 | 32.1°C | 19.5°C | 25.8°C | 109 mm | 82% | 3.1 m/s | 4.1 |
| 2011 | 29.4°C | 19.7°C | 24.6°C | 127 mm | 85% | 3.2 m/s | 4.1 |
| 2010 | 30.0°C | 19.5°C | 24.8°C | 131 mm | 87% | 2.9 m/s | 4.1 |
| 2009 | 29.2°C | 19.6°C | 24.4°C | 106 mm | 87% | 2.7 m/s | 4.7 |
| 2008 | 30.8°C | 19.7°C | 25.2°C | 138 mm | 85% | 2.5 m/s | 4.7 |
| 2007 | 28.5°C | 19.2°C | 23.9°C | 170 mm | 90% | 2.7 m/s | 4.3 |
| 2006 | 30.0°C | 19.0°C | 24.5°C | 126 mm | 86% | 3.1 m/s | 4.7 |
| 2005 | 31.8°C | 19.7°C | 25.8°C | 86 mm | 85% | 3 m/s | 4.9 |
| 2004 | 29.8°C | 19.1°C | 24.4°C | 108 mm | 86% | 3.3 m/s | 4.6 |
| 2003 | 29.4°C | 19.9°C | 24.6°C | 84 mm | 85% | 3 m/s | 4.6 |
| 2002 | 31.4°C | 18.9°C | 25.2°C | 130 mm | 83% | 3.4 m/s | 4.1 |
| 2001 | 29.6°C | 19.7°C | 24.6°C | 74 mm | 84% | 3.3 m/s | 4.2 |
| 2000 | 31.1°C | 18.9°C | 25.0°C | 220 mm | 85% | 3.5 m/s | 4 |
| 1999 | 30.2°C | 19.9°C | 25.0°C | 51 mm | 84% | 2.9 m/s | 4.9 |
| 1998 | 29.6°C | 20.2°C | 24.9°C | 117 mm | 88% | 2.6 m/s | 4.5 |
| 1997 ❄️ | 28.1°C | 18.5°C | 23.3°C | 149 mm | 88% | 3.3 m/s | 4.3 |
| 1996 | 27.9°C | 19.3°C | 23.6°C | 158 mm | 88% | 3.1 m/s | 4.4 |
| 1995 | 29.3°C | 20.1°C | 24.7°C | 114 mm | 87% | 3 m/s | 4.4 |
| 1994 | 29.0°C | 19.1°C | 24.0°C | 97 mm | 88% | 3.1 m/s | 4.7 |
| 1993 | 29.6°C | 19.2°C | 24.4°C | 90 mm | 85% | 3.2 m/s | 4.8 |
| 1992 | 29.0°C | 19.9°C | 24.5°C | 129 mm | 88% | 3.4 m/s | 4.4 |
| 1991 | 27.8°C | 19.5°C | 23.6°C | 137 mm | 87% | 3.1 m/s | 4.1 |
| 1990 | 29.6°C | 18.5°C | 24.0°C | 103 mm | 84% | 3.7 m/s | 4.3 |
| 1989 | 29.2°C | 19.2°C | 24.2°C | 76 mm | 84% | 3.4 m/s | 4.7 |
| 1988 | 27.8°C | 19.6°C | 23.7°C | 195 mm | 88% | 2.8 m/s | 4.4 |
| 1987 | 31.9°C | 19.5°C | 25.7°C | 131 mm | 82% | 3.2 m/s | 4.4 |
| 1986 | 31.7°C | 18.9°C | 25.3°C | 118 mm | 81% | 3.5 m/s | 4.7 |
| 1985 | 29.2°C | 18.8°C | 24.0°C | 107 mm | 85% | 3.2 m/s | 4.3 |
| 1984 | 30.3°C | 19.1°C | 24.7°C | 86 mm | 82% | 3.5 m/s | 5 |
| 1983 | 28.6°C | 18.5°C | 23.6°C | 149 mm | 86% | 3.2 m/s | — |
| 1982 | 28.4°C | 19.5°C | 23.9°C | 167 mm | 89% | 3.2 m/s | — |
| 1981 | 27.4°C | 19.5°C | 23.5°C | 213 mm | 89% | 3.2 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 29.9°C with lows near 19.5°C (mean 24.7°C), based on 45 years of NASA POWER data.
August averages 136 mm of rainfall in Coimbatore, a relatively wet time of year. The wettest on record was 286 mm in 2022.
The hottest August reached 33.8°C in 2023. The coldest dipped to 18.5°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.4°C. Daytime highs moved from 28.8°C to 30.9°C and overnight lows from 19.1°C to 19.7°C over the same span.
August is one of the cooler months of the year in Coimbatore and a relatively wet time of year, so plan for around 29.9°C daytime highs and 19.5°C at night.
Not quite — August is the 6th coolest month in Coimbatore, averaging 24.7°C.
For August in Coimbatore, pack light layers you can adjust through the day, with typical highs of 29.9°C and lows of 19.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 86% — quite humid.
Average wind speed in August is 3 m/s. The windiest August on record averaged 3.7 m/s (1990).
The wettest August on record was 2022 with 286 mm. On average, August sees 136 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 Coimbatore 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.
