Chennai weather in August
In August, Chennai has an average high of 33 °C91 °F and an average low of 25 °C78 °F, with about 132 mm5.2 in of precipitation. It is the 5th warmest month of the year and ranks 4th for precipitation.
How August compares with other months
Compared with July, August is 0.7 °C1.3 °F cooler on average and wetter by 24 mm0.9 in. Compared with September, August is 0.7 °C1.3 °F warmer on average and drier by 12 mm0.5 in. Daylight lasts about 12.6 hours around the middle of the month. Average relative humidity is 72% and the average cloud amount 81%.
Is August a good time to visit Chennai?
August is not among the most comfortable months by our comfort score: it is hot (average high 33 °C91 °F) and it is fairly wet (132 mm5.2 in). The most comfortable months in Chennai are January.
What to wear in August
For Chennai in August, pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
August in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Chennai | 3391 | 2578 | 1325.2 |
| Pallavaram | 3391 | 2578 | 1325.2 |
| Kanchipuram | 3391 | 2577 | 1325.2 |
| Tirupati | 3492 | 2475 | 1154.5 |
| Vellore | 3392 | 2374 | 1234.8 |
| Chittoor | 3290 | 2272 | 1234.8 |
| Puducherry | 3289 | 2780 | 1094.3 |
| Nellore | 3392 | 2679 | 1144.5 |
| Tiruvannamalai | 3492 | 2475 | 1144.5 |
Nearby places that are more than 1 °C1.8 °F cooler: Vellore and Chittoor.
Other months in Chennai
- January28 °C82 °F / 21 °C69 °F
- February30 °C87 °F / 21 °C70 °F
- March34 °C93 °F / 23 °C74 °F
- April36 °C96 °F / 26 °C79 °F
- May36 °C97 °F / 27 °C81 °F
- June35 °C95 °F / 27 °C80 °F
- July34 °C93 °F / 26 °C79 °F
- August33 °C91 °F / 25 °C78 °F
- September32 °C89 °F / 25 °C77 °F
- October30 °C87 °F / 25 °C77 °F
- November29 °C83 °F / 23 °C74 °F
- December27 °C81 °F / 22 °C71 °F
Frequently asked questions
How warm is Chennai in August?
In August the average high in Chennai is 33 °C (91 °F) and the average low is 25 °C (78 °F).
Does it rain a lot in Chennai in August?
On average about 132 mm (5.2 in) of precipitation falls in August; it ranks 4th of the 12 months.
Is August the warmest month in Chennai?
No. The warmest month in Chennai is May, with an average high of 36 °C (97 °F). The coldest month is January, with an average low of 21 °C (69 °F).
How long is the day in Chennai in August?
In the middle of August the day in Chennai lasts about 12.6 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Chennai in August?
The average relative humidity in August is about 72%. Combined with warm days, it can feel muggy.
How cloudy is Chennai in August?
On average about 81% of the sky is covered by cloud in August. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.