Chennai boasts a year-around average temperature of 29.7°C, peaking at 33.7°C in May, its warmest month, and dipping to an average low of 26.2°C in January, the coolest. Rainfall averages at 100.9mm annually, with November seeing the heaviest showers and February being the driest month.
Month![]() | Temperature (Celcius)![]() | Rainfall (mm)![]() |
January | 26.2 | 24.6 |
February | 27.3 | 0.0 |
March | 29.5 | 15.0 |
April | 31.8 | 24.9 |
May | 33.7 | 52.1 |
June | 33.0 | 53.1 |
July | 31.7 | 84.1 |
August | 30.9 | 124.0 |
September | 30.5 | 118.1 |
October | 29.0 | 267.0 |
November | 27.0 | 309.1 |
December | 26.3 | 138.9 |