Chennai weather in August
August is one of the least pleasant months in Chennai: highs of 33°C (91°F) and about 132 mm (5.2 in) of rain on average. Nights average 25°C (77°F) and cloud cover 81% (NASA POWER, 2001–2025 averages). It is the 4th wettest month of the year and the 6th warmest. Compared with July, it is cooler and wetter; September brings highs of 32°C (89°F) and 145 mm (5.7 in) of rain.
Is August a good time to visit Chennai?
least pleasant month Weather score 55/100.
August is one of the least pleasant months for weather in Chennai. For better conditions, consider Jan–Mar.
Does it rain a lot in Chennai in August?
Some rain is normal: about 132 mm (5.2 in) falls in an average August. It is the 4th wettest month of the year.
How warm is Chennai in August?
Days average 33°C (91°F) and nights 25°C (77°F).
Chennai weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 28°C (82°F) | 21°C (69°F) | 16 mm | 36% | best |
| February | 30°C (87°F) | 21°C (70°F) | 6 mm | 29% | best |
| March | 34°C (93°F) | 23°C (74°F) | 15 mm | 30% | best |
| April | 35°C (96°F) | 26°C (78°F) | 26 mm | 37% | fair |
| May | 36°C (97°F) | 27°C (81°F) | 55 mm | 54% | fair |
| June | 35°C (94°F) | 27°C (80°F) | 68 mm | 77% | fair |
| July | 34°C (93°F) | 26°C (78°F) | 108 mm | 83% | least pleasant |
| August | 33°C (91°F) | 25°C (77°F) | 132 mm | 81% | least pleasant |
| September | 32°C (89°F) | 25°C (77°F) | 145 mm | 72% | fair |
| October | 30°C (86°F) | 25°C (76°F) | 264 mm | 63% | least pleasant |
| November | 28°C (83°F) | 23°C (74°F) | 292 mm | 61% | least pleasant |
| December | 27°C (81°F) | 22°C (71°F) | 126 mm | 51% | fair |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months