Chennai, Tamil Nadu Weather by Month and Climate Averages

How much rain does Chennai get?

Chennai gets 1368 mm of precipitation in an average year, spread over about 83 days with measurable rain. That is more rainy days than 70% of India.

November is the wettest month, with 364 mm. February is the driest, with 14 mm. November has the most rainy days, about 14.

Chennai weather by month

Chennai weather in January

In January, Chennai averages a high of 30°C and a low of 21°C. It gets 17 mm of precipitation over about 2 rainy days. The sun is out about 53% of daylight hours. The January record high is 35°C (1998) and the record low is 12°C (2002).

Chennai weather in February

In February, Chennai averages a high of 32°C and a low of 22°C. It gets 14 mm of precipitation over about 1 rainy days. The sun is out about 66% of daylight hours. The February record high is 38°C (1981) and the record low is 15°C (1974).

Chennai weather in March

In March, Chennai averages a high of 34°C and a low of 24°C. It gets 23 mm of precipitation over about 1 rainy days. The sun is out about 64% of daylight hours. The March record high is 41°C (2021) and the record low is 18°C (1989).

Chennai weather in April

In April, Chennai averages a high of 36°C and a low of 26°C. It gets 27 mm of precipitation over about 2 rainy days. The sun is out about 60% of daylight hours. The April record high is 43°C (2006) and the record low is 20°C (1985).

Chennai weather in May

In May, Chennai averages a high of 38°C and a low of 28°C. It gets 46 mm of precipitation over about 3 rainy days. The sun is out about 40% of daylight hours. The May record high is 44°C (2003) and the record low is 22°C (1996).

Chennai weather in June

In June, Chennai averages a high of 38°C and a low of 27°C. It gets 55 mm of precipitation over about 6 rainy days. The sun is out about 19% of daylight hours. The June record high is 43°C (2012) and the record low is 20°C (1983).

Chennai weather in July

In July, Chennai averages a high of 36°C and a low of 26°C. It gets 107 mm of precipitation over about 10 rainy days. The sun is out about 13% of daylight hours. The July record high is 41°C (2015) and the record low is 21°C (1985).

Chennai weather in August

In August, Chennai averages a high of 35°C and a low of 26°C. It gets 137 mm of precipitation over about 12 rainy days. The sun is out about 16% of daylight hours. The August record high is 39°C (2018) and the record low is 20°C (1983).

Chennai weather in September

In September, Chennai averages a high of 34°C and a low of 25°C. It gets 123 mm of precipitation over about 10 rainy days. The sun is out about 19% of daylight hours. The September record high is 39°C (2024) and the record low is 21°C (1990).

Chennai weather in October

In October, Chennai averages a high of 33°C and a low of 24°C. It gets 279 mm of precipitation over about 13 rainy days. The sun is out about 34% of daylight hours. The October record high is 40°C (1977) and the record low is 20°C (2000).

Chennai weather in November

In November, Chennai averages a high of 31°C and a low of 23°C. It gets 364 mm of precipitation over about 14 rainy days. The sun is out about 23% of daylight hours. The November record high is 38°C (1992) and the record low is 17°C (2012).

Chennai weather in December

In December, Chennai averages a high of 29°C and a low of 22°C. It gets 177 mm of precipitation over about 8 rainy days. The sun is out about 38% of daylight hours. The December record high is 33°C (2010) and the record low is 17°C (1981).

Sunshine, humidity and wind in Chennai

February is the sunniest month in Chennai, with sunshine about 66% of daylight hours. July is the cloudiest, at 13%. Over the year the sun shines about 37% of daylight hours. Chennai is cloudier than 74% of India.

Humidity peaks in November at 84% and is lowest in June at 72%.

Chennai has about 192 days a year above 32°C. Chennai is hotter than 94% of India.

Chennai weather records

The hottest temperature on record at the Chennai station is 44°C, on May 29, 2003. The coldest is 12°C, on January 7, 2002.

The wettest day on record brought 345 mm of rain, on December 2, 2015.

26 all-time records have been set at the station since 1970.

The best time to visit Chennai

Winter (December–February) is hot, with average highs around 30°C and lows near 21°C.

Spring (March–May) is hot, with average highs around 36°C and lows near 26°C.

Summer (June–August) is hot, with average highs around 36°C and lows near 26°C. It can feel humid.

Autumn (September–November) is hot, with average highs around 33°C and lows near 24°C.

Chennai climate questions

How much rain does Chennai get?

Chennai gets 1368 mm of precipitation in an average year, over about 83 rainy days.

What is the wettest month in Chennai?

November is the wettest month in Chennai, with 364 mm. February is the driest, with 14 mm.

How many rainy days does Chennai have a year?

Chennai has about 83 days with measurable rain in an average year. November has the most, about 14.

What is the hottest month in Chennai?

May is the warmest month in Chennai, with an average high of 38°C.

What is the coldest month in Chennai?

January is the coldest month in Chennai, with an average low of 21°C.

What is the record high temperature in Chennai?

The record high at the Chennai station is 44°C, set on May 29, 2003. The record low is 12°C, on January 7, 2002.

What is the sunniest month in Chennai?

February is the sunniest month in Chennai, with sunshine about 66% of daylight hours. July is the cloudiest.