Chennai Weather & Climate: Best Time to Visit

In Chennai temperatures are generally consistent throughout the year. On average, daytime temperatures range from a very hot 36°C (97°F) in May to a comfortable 29°C (84°F) in December.

Nighttime temperatures range from 29°C (84°F) in May to 23°C (73°F) in December.

Check out our detailed temperature page for more information.

Temperature ranges by month

Chennai experiences significant rainfall throughout the year, averaging 1021 mm (40 in) of precipitation annually. The seasons in Chennai bring significant changes in precipitation. The wettest month, November, receives heavy rainfall, with an average of 231 mm (9.1 in) of precipitation. This rainfall is distributed across 10 rainy days.

In contrast, the driest month, February, experiences much less rainfall, totaling 9.4 mm (0.4 in) over a single rainy day. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Chennai Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

In Chennai, summer days are longer and more sunny, with daily sunshine hours peaking at 10.0 hours in May. As the darker season arrives, the brightness of the sun becomes less. July sees a soft sun for only 4.8 hours per average day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Chennai.

The city experiences its highest humidity in October, reaching 76%. In June, the humidity drops to its lowest level at 63%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year