August is one of the warmer months of the year in Chengalpattu, with average highs near 35.4°C and lows around 24.9°C (mean 30.2°C). It is a relatively wet time of year, averaging 127 mm of rainfall and 73% relative humidity across the period.
August is one of the warmer months of the year in Chengalpattu. Across 45 years of records, the warmest Augusts in Chengalpattu were 2005 and 2023 — when the month averaged 31.2°C — while the coldest was 2020 at 29.2°C. Typical August days reach 35.4°C with nights near 24.9°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 | 29.9°C | 30.3°C | 30.2°C | 30.3°C | 30.1°C | +0.2°C |
| Avg High | 35.1°C | 35.6°C | 35.5°C | 35.6°C | 34.9°C | -0.2°C |
| Avg Low | 24.6°C | 24.9°C | 25.0°C | 25.0°C | 25.3°C | +0.7°C |
| Avg Rain | 118 mm | 121 mm | 96 mm | 153 mm | 157 mm | +39 mm |
August temperatures in Chengalpattu have risen by about 0.6°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 23.8°C (1984) to a record high of 37.1°C (2005).
Rainfall in August is a relatively wet time of year, averaging 127 mm, with a wettest year of 224 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
A quieter season to visit Chengalpattu
If your dates are flexible, the more temperate months of January and February tend to be the most comfortable for visiting Chengalpattu. That said, August — with days averaging 35.4°C and nights around 24.9°C (mean 30.2°C) and higher rainfall (127 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 | 35.3°C | 25.1°C | 30.2°C | 161 mm | 76% | 2.9 m/s | 5 |
| 2024 | 34.5°C | 25.7°C | 30.1°C | 190 mm | 80% | 3 m/s | 5.5 |
| 2023 | 36.5°C | 25.9°C | 31.2°C | 166 mm | 75% | 2.7 m/s | 5.7 |
| 2022 | 34.8°C | 25.1°C | 29.9°C | 171 mm | 78% | 3 m/s | 5.2 |
| 2021 | 34.8°C | 24.9°C | 29.9°C | 140 mm | 77% | 3.1 m/s | 5.3 |
| 2020 ❄️ | 33.3°C | 25.1°C | 29.2°C | 115 mm | 79% | 3.1 m/s | 4.8 |
| 2019 | 36.4°C | 24.7°C | 30.5°C | 208 mm | 75% | 3.8 m/s | 5.1 |
| 2018 | 36.2°C | 25.7°C | 31.0°C | 131 mm | 68% | 3.4 m/s | 4.8 |
| 2017 | 33.7°C | 25.3°C | 29.5°C | 224 mm | 78% | 2.8 m/s | 5.2 |
| 2016 | 35.8°C | 24.6°C | 30.2°C | 83 mm | 72% | 3.4 m/s | 5.8 |
| 2015 | 36.3°C | 25.1°C | 30.7°C | 136 mm | 73% | 3 m/s | 5.9 |
| 2014 | 35.6°C | 25.3°C | 30.4°C | 147 mm | 73% | 3.4 m/s | 5.3 |
| 2013 | 34.9°C | 24.9°C | 29.9°C | 175 mm | 75% | 3 m/s | 5.3 |
| 2012 | 35.6°C | 25.3°C | 30.4°C | 115 mm | 72% | 3.4 m/s | 5.5 |
| 2011 | 35.7°C | 24.9°C | 30.3°C | 141 mm | 73% | 3.3 m/s | 5.4 |
| 2010 | 35.7°C | 24.1°C | 29.9°C | 171 mm | 76% | 3.1 m/s | 4.9 |
| 2009 | 34.8°C | 25.4°C | 30.1°C | 101 mm | 74% | 3.4 m/s | 5.7 |
| 2008 | 34.9°C | 25.2°C | 30.1°C | 96 mm | 73% | 3.3 m/s | 5.1 |
| 2007 | 34.1°C | 24.9°C | 29.5°C | 177 mm | 78% | 3.4 m/s | 5.5 |
| 2006 | 35.8°C | 24.8°C | 30.3°C | 74 mm | 68% | 3.7 m/s | 5.6 |
| 2005 🔥 | 37.1°C | 25.4°C | 31.2°C | 83 mm | 67% | 3.2 m/s | 5.5 |
| 2004 | 36.6°C | 25.0°C | 30.8°C | 57 mm | 69% | 4 m/s | 5.6 |
| 2003 | 34.5°C | 24.6°C | 29.6°C | 133 mm | 78% | 3.5 m/s | 5.3 |
| 2002 | 36.5°C | 25.0°C | 30.7°C | 97 mm | 66% | 3.9 m/s | 5.3 |
| 2001 | 36.1°C | 24.8°C | 30.4°C | 58 mm | 70% | 3.6 m/s | 5.5 |
| 2000 | 34.3°C | 24.4°C | 29.3°C | 81 mm | 73% | 4.1 m/s | 5.3 |
| 1999 | 36.0°C | 25.2°C | 30.6°C | 110 mm | 71% | 3.5 m/s | 5.1 |
| 1998 | 33.6°C | 25.8°C | 29.7°C | 114 mm | 78% | 3.1 m/s | 5.1 |
| 1997 | 36.2°C | 25.1°C | 30.6°C | 88 mm | 68% | 3.8 m/s | 4.8 |
| 1996 | 35.5°C | 24.2°C | 29.8°C | 116 mm | 76% | 3.4 m/s | 4.8 |
| 1995 🌧️ | 35.0°C | 24.8°C | 29.9°C | 224 mm | 79% | 3.3 m/s | 5.1 |
| 1994 | 36.5°C | 24.9°C | 30.7°C | 106 mm | 69% | 3.8 m/s | 4.9 |
| 1993 | 35.6°C | 25.1°C | 30.4°C | 130 mm | 72% | 3.6 m/s | 5 |
| 1992 | 36.2°C | 24.9°C | 30.5°C | 66 mm | 68% | 4 m/s | 5 |
| 1991 | 35.5°C | 24.6°C | 30.0°C | 117 mm | 70% | 3.9 m/s | 5.1 |
| 1990 | 35.8°C | 24.8°C | 30.3°C | 136 mm | 71% | 3.7 m/s | 4.8 |
| 1989 | 36.0°C | 24.9°C | 30.5°C | 45 mm | 68% | 3.6 m/s | 5.2 |
| 1988 | 35.7°C | 24.8°C | 30.3°C | 185 mm | 78% | 3.3 m/s | 4.6 |
| 1987 | 34.4°C | 25.1°C | 29.8°C | 108 mm | 72% | 3.6 m/s | 5.1 |
| 1986 | 35.5°C | 24.4°C | 30.0°C | 133 mm | 72% | 3.8 m/s | 5.4 |
| 1985 | 34.6°C | 24.6°C | 29.6°C | 145 mm | 74% | 3.4 m/s | 5.3 |
| 1984 | 36.0°C | 23.8°C | 29.9°C | 51 mm | 69% | 3.2 m/s | 6 |
| 1983 | 34.3°C | 24.9°C | 29.6°C | 145 mm | 72% | 3.4 m/s | — |
| 1982 | 35.7°C | 24.7°C | 30.2°C | 84 mm | 71% | 3.8 m/s | — |
| 1981 | 34.0°C | 24.6°C | 29.3°C | 163 mm | 76% | 3.6 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 35.4°C with lows near 24.9°C (mean 30.2°C), based on 45 years of NASA POWER data.
August averages 127 mm of rainfall in Chengalpattu, a relatively wet time of year. The wettest on record was 224 mm in 1995.
The hottest August reached 37.1°C in 2005. The coldest dipped to 23.8°C in 1984.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 0.6°C. Daytime highs moved from 34.9°C to 35.2°C and overnight lows from 24.5°C to 25.3°C over the same span.
August is one of the warmer months of the year in Chengalpattu and a relatively wet time of year, so plan for around 35.4°C daytime highs and 24.9°C at night.
Not quite — August is the 8th coolest month in Chengalpattu, averaging 30.2°C.
For August in Chengalpattu, pack light, breathable clothing and sun protection, with typical highs of 35.4°C and lows of 24.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 73% — moderately humid.
Average wind speed in August is 3.4 m/s. The windiest August on record averaged 4.1 m/s (2000).
The wettest August on record was 1995 with 224 mm. On average, August sees 127 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 Chengalpattu 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.
