August is one of the warmer months of the year in Chengalpattu, with average highs near 32.6°C and lows around 26°C (mean 29.3°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 August in Chengalpattu was 2005 — when the month averaged 30.3°C — while the coldest were 1996 and 2007 at 28.5°C. Typical August days reach 32.6°C with nights near 26°C. The long-term August temperature trend is broadly flat.
August is a relatively wet time of year in Chengalpattu, averaging 127 mm of rainfall. The wettest Augusts on record were 1995 and 2017 with 224 mm, while the driest was 1989 at 45 mm.
Relative humidity in Chengalpattu during August averages 73%. The most humid August was 2024 at 80%, and the least humid was 2002 at 66%.
August receives about 5.2 kWh/m²/day of solar energy in Chengalpattu. The sunniest August was 1984 at 6 kWh/m²/day, and the cloudiest was 1988 at 4.6.
Average wind speed in Chengalpattu during August is 3.4 m/s. The windiest August was 2000 at 4.1 m/s, while the calmest was 2023 at 2.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 29.1°C | 29.4°C | 29.5°C | 29.4°C | 29.1°C | 0°C |
| Avg High | 32.6°C | 32.8°C | 33.0°C | 32.6°C | 31.9°C | -0.7°C |
| Avg Low | 25.6°C | 26.0°C | 26.1°C | 26.1°C | 26.3°C | +0.7°C |
| Avg Rain | 118 mm | 121 mm | 96 mm | 153 mm | 157 mm | +39 mm |
August temperatures in Chengalpattu have stayed relatively stable across the record.
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 fell about 0.1°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 32.6°C and nights around 26°C (mean 29.3°C) and higher rainfall (127 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 31.9°C | 29.0°C | 26.1°C | 35.3°C | 25.1°C | 161 mm | 76% | 2.9 m/s | 5 |
| 2024 | 31.7°C | 29.2°C | 26.7°C | 34.5°C | 25.7°C | 190 mm | 80% | 3 m/s | 5.5 |
| 2023 | 33.0°C | 30.0°C | 26.9°C | 36.5°C | 25.9°C | 166 mm | 75% | 2.7 m/s | 5.7 |
| 2022 | 31.6°C | 28.7°C | 25.9°C | 34.8°C | 25.1°C | 171 mm | 78% | 3 m/s | 5.2 |
| 2021 | 31.7°C | 28.8°C | 25.9°C | 34.8°C | 24.9°C | 140 mm | 77% | 3.1 m/s | 5.3 |
| 2020 | 31.7°C | 28.9°C | 26.2°C | 33.3°C | 25.1°C | 115 mm | 79% | 3.1 m/s | 4.8 |
| 2019 | 32.3°C | 29.1°C | 26.0°C | 36.4°C | 24.7°C | 208 mm | 75% | 3.8 m/s | 5.1 |
| 2018 | 34.1°C | 30.2°C | 26.4°C | 36.2°C | 25.7°C | 131 mm | 68% | 3.4 m/s | 4.8 |
| 2017 | 31.7°C | 29.0°C | 26.3°C | 33.7°C | 25.3°C | 224 mm | 78% | 2.8 m/s | 5.2 |
| 2016 | 33.3°C | 29.7°C | 26.1°C | 35.8°C | 24.6°C | 83 mm | 72% | 3.4 m/s | 5.8 |
| 2015 | 33.1°C | 29.8°C | 26.4°C | 36.3°C | 25.1°C | 136 mm | 73% | 3 m/s | 5.9 |
| 2014 | 32.2°C | 29.2°C | 26.2°C | 35.6°C | 25.3°C | 147 mm | 73% | 3.4 m/s | 5.3 |
| 2013 | 32.0°C | 28.9°C | 25.7°C | 34.9°C | 24.9°C | 175 mm | 75% | 3 m/s | 5.3 |
| 2012 | 32.6°C | 29.3°C | 25.9°C | 35.6°C | 25.3°C | 115 mm | 72% | 3.4 m/s | 5.5 |
| 2011 | 32.4°C | 29.2°C | 26.0°C | 35.7°C | 24.9°C | 141 mm | 73% | 3.3 m/s | 5.4 |
| 2010 | 32.1°C | 29.1°C | 26.1°C | 35.7°C | 24.1°C | 171 mm | 76% | 3.1 m/s | 4.9 |
| 2009 | 32.6°C | 29.4°C | 26.1°C | 34.8°C | 25.4°C | 101 mm | 74% | 3.4 m/s | 5.7 |
| 2008 | 32.4°C | 29.2°C | 26.0°C | 34.9°C | 25.2°C | 96 mm | 73% | 3.3 m/s | 5.1 |
| 2007 | 31.5°C | 28.5°C | 25.6°C | 34.1°C | 24.9°C | 177 mm | 78% | 3.4 m/s | 5.5 |
| 2006 | 33.6°C | 30.0°C | 26.3°C | 35.8°C | 24.8°C | 74 mm | 68% | 3.7 m/s | 5.6 |
| 2005 🔥 | 34.0°C | 30.3°C | 26.7°C | 37.1°C | 25.4°C | 83 mm | 67% | 3.2 m/s | 5.5 |
| 2004 | 34.0°C | 30.0°C | 26.0°C | 36.6°C | 25.0°C | 57 mm | 69% | 4 m/s | 5.6 |
| 2003 | 31.8°C | 28.9°C | 25.9°C | 34.5°C | 24.6°C | 133 mm | 78% | 3.5 m/s | 5.3 |
| 2002 | 33.9°C | 30.2°C | 26.5°C | 36.5°C | 25.0°C | 97 mm | 66% | 3.9 m/s | 5.3 |
| 2001 | 33.8°C | 30.0°C | 26.1°C | 36.1°C | 24.8°C | 58 mm | 70% | 3.6 m/s | 5.5 |
| 2000 | 32.3°C | 28.9°C | 25.6°C | 34.3°C | 24.4°C | 81 mm | 73% | 4.1 m/s | 5.3 |
| 1999 | 33.0°C | 29.6°C | 26.1°C | 36.0°C | 25.2°C | 110 mm | 71% | 3.5 m/s | 5.1 |
| 1998 | 31.5°C | 28.9°C | 26.4°C | 33.6°C | 25.8°C | 114 mm | 78% | 3.1 m/s | 5.1 |
| 1997 | 34.1°C | 30.2°C | 26.3°C | 36.2°C | 25.1°C | 88 mm | 68% | 3.8 m/s | 4.8 |
| 1996 ❄️ | 31.7°C | 28.5°C | 25.4°C | 35.5°C | 24.2°C | 116 mm | 76% | 3.4 m/s | 4.8 |
| 1995 🌧️ | 31.7°C | 28.8°C | 26.0°C | 35.0°C | 24.8°C | 224 mm | 79% | 3.3 m/s | 5.1 |
| 1994 | 33.4°C | 29.8°C | 26.2°C | 36.5°C | 24.9°C | 106 mm | 69% | 3.8 m/s | 4.9 |
| 1993 | 32.7°C | 29.3°C | 26.0°C | 35.6°C | 25.1°C | 130 mm | 72% | 3.6 m/s | 5 |
| 1992 | 33.7°C | 29.8°C | 26.0°C | 36.2°C | 24.9°C | 66 mm | 68% | 4 m/s | 5 |
| 1991 | 33.3°C | 29.5°C | 25.7°C | 35.5°C | 24.6°C | 117 mm | 70% | 3.9 m/s | 5.1 |
| 1990 | 33.0°C | 29.3°C | 25.5°C | 35.8°C | 24.8°C | 136 mm | 71% | 3.7 m/s | 4.8 |
| 1989 | 34.0°C | 29.9°C | 25.9°C | 36.0°C | 24.9°C | 45 mm | 68% | 3.6 m/s | 5.2 |
| 1988 | 31.2°C | 28.6°C | 25.9°C | 35.7°C | 24.8°C | 185 mm | 78% | 3.3 m/s | 4.6 |
| 1987 | 32.5°C | 29.2°C | 25.9°C | 34.4°C | 25.1°C | 108 mm | 72% | 3.6 m/s | 5.1 |
| 1986 | 32.6°C | 29.1°C | 25.5°C | 35.5°C | 24.4°C | 133 mm | 72% | 3.8 m/s | 5.4 |
| 1985 | 32.0°C | 28.6°C | 25.2°C | 34.6°C | 24.6°C | 145 mm | 74% | 3.4 m/s | 5.3 |
| 1984 | 33.6°C | 29.5°C | 25.4°C | 36.0°C | 23.8°C | 51 mm | 69% | 3.2 m/s | 6 |
| 1983 | 32.6°C | 29.3°C | 26.0°C | 34.3°C | 24.9°C | 145 mm | 72% | 3.4 m/s | — |
| 1982 | 32.9°C | 29.2°C | 25.5°C | 35.7°C | 24.7°C | 84 mm | 71% | 3.8 m/s | — |
| 1981 | 31.8°C | 28.6°C | 25.3°C | 34.0°C | 24.6°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 32.6°C with lows near 26°C (mean 29.3°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 0.1°C — but days and nights have moved in opposite directions. Overnight lows rose from 25.5°C to 26.3°C while daytime highs eased from 32.6°C to 32°C, narrowing the gap between day and night.
August is one of the warmer months of the year in Chengalpattu and a relatively wet time of year, so plan for around 32.6°C daytime highs and 26°C at night.
Not quite — August is the 8th coolest month in Chengalpattu, averaging 29.3°C.
For August in Chengalpattu, pack light, breathable clothing and sun protection, with typical highs of 32.6°C and lows of 26°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.
