Monthly weather forecast and climate
Chennai, India

A staircase to the front entrance of the Ramakrishna Temple in Chennai, India
A staircase to the front entrance of the Ramakrishna Temple in Chennai, India

The best time to visit Chennai

The best months for a swim in Chennai, India, are February through May, with a perfect temperature - varying between 25°C (77°F) and 29°C (84.2°F), and scarce rainfall.

Weather in January

January, the same as December, is a moderately hot winter month in Chennai, India, with average temperature fluctuating between 23.4°C (74.1°F) and 27.3°C (81.1°F). The coldest month is January, with an average high-temperature of 27.3°C (81.1°F) and an average low-temperature of 23.4°C (74.1°F). The average heat index in January is calculated to 29.6°C (85.3°F). Weather in January »

Weather in February

The last month of the winter, February, is another warm month in Chennai, India, with temperature in the range of an average low of 23.8°C (74.8°F) and an average high of 28.5°C (83.3°F). An excellent water temperature of 27.2°C (81°F) and only 2.9 rainfall days, with 6mm (0.24") of accumulated rainfall, makes February a prime for swimming and other water activities. Weather in February »

Weather in March

March, the first month of the pre-monsoon summer, in Chennai, is a tropical month, with average temperature fluctuating between 25.6°C (78.1°F) and 30.9°C (87.6°F). The perfect water temperature of 28.1°C (82.6°F) with 7mm (0.28") of accumulated rainfall and only 3.8 rainfall days, makes March a great period for swimming and other water activities. Weather in March »

Weather in April

April, the same as March, in Chennai, India, is another hot pre-monsoon summer month, with temperature in the range of an average low of 27.8°C (82°F) and an average high of 32.9°C (91.2°F). The ideal sea water temperature of 29.3°C (84.7°F) and only 4.3 rainfall days, with 10mm (0.39") of accumulated rainfall, makes April the best time for swimming and other water activities. Weather in April »

Weather in May

The last month of the pre-monsoon summer, May, is another tropical month in Chennai, India, with temperature in the range of an average high of 34.8°C (94.6°F) and an average low of 29.6°C (85.3°F). An excellent water temperature of 29.5°C (85.1°F) and only 5.9 rainfall days, with 23mm (0.91") of accumulated rainfall, makes May a prime for swimming and other water activities. Weather in May »

Weather in June

June, the first month of the rainy (monsoon) season, in Chennai, is still a tropical month, with temperature in the range of an average high of 34.2°C (93.6°F) and an average low of 29.3°C (84.7°F). In June, the average high-temperature is practically the same as in May - a still tropical 34.2°C (93.6°F). Weather in June »

Weather in July

July, like June, is another hot rainy (monsoon) season month in Chennai, India, with average temperature varying between 28.4°C (83.1°F) and 32.8°C (91°F). In Chennai, the average high-temperature in July is practically the same as in June - a still hot 32.8°C (91°F). Weather in July »

Weather in August

August, the same as July, in Chennai, India, is another hot rainy (monsoon) season month, with average temperature ranging between min 27.7°C (81.9°F) and max 32.3°C (90.1°F). In Chennai, the average high-temperature is almost the same as in July - a still hot 32.3°C (90.1°F). Weather in August »

Weather in September

September, the last month of the rainy (monsoon) season, in Chennai, is another tropical month, with temperature in the range of an average low of 27.3°C (81.1°F) and an average high of 31.6°C (88.9°F). In Chennai, the average high-temperature is relatively the same as in August - a still hot 31.6°C (88.9°F). Weather in September »

Weather in October

The first month of the post monsoon autumn, October, is still a tropical month in Chennai, India, with average temperature ranging between min 26.9°C (80.4°F) and max 30.9°C (87.6°F). In October, the average high-temperature is practically the same as in September - a still hot 30.9°C (87.6°F). Weather in October »

Weather in November

The last month of the post monsoon autumn, November, is also a moderately hot month in Chennai, India, with average temperature varying between 25.5°C (77.9°F) and 28.8°C (83.8°F). In Chennai, the average high-temperature is relatively the same as in October - a warm 28.8°C (83.8°F). Weather in November »

Weather in December

The first month of the winter, December, is also a moderately hot month in Chennai, India, with temperature in the range of an average high of 27.4°C (81.3°F) and an average low of 24.3°C (75.7°F). In Chennai, the average high-temperature in December is essentially the same as in November - a still warm 27.4°C (81.3°F). Weather in December »
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FAQ

What is the coldest month in Chennai?

January is the coldest month in Chennai, with an average high-temperature of 27.3°C (81.1°F) and an average low-temperature of 23.4°C (74.1°F).

How many days does it rain in Chennai?

Throughout the year, in Chennai, India, there are 157.6 rainfall days, and 823mm (32.4") of precipitation is accumulated.

What month is the sea coldest in Chennai?

With an average sea temperature of 26.8°C (80.2°F), January is the month with the coldest seawater.

What is the driest month in Chennai?

February is the month with the least rainfall. Rain falls for 2.9 days and accumulates 6mm (0.24") of precipitation.

What is the month with the highest UV index in Chennai?

April through July, with an average maximum UV index of 8, are months with the highest UV index.

What is the warmest month in Chennai?

With an average high-temperature of 34.8°C (94.6°F) and an average low-temperature of 29.6°C (85.3°F), May is the warmest month.

When is the sea warmest in Chennai?

The month with the warmest seawater is May, with an average sea temperature of 29.5°C (85.1°F).

What month has the most sunshine in Chennai?

May has the most sunshine of the year in Chennai, India, with an average of 11.9h of sunshine.

What is the least humid month in Chennai?

The least humid month in Chennai, India, is June, with an average relative humidity of 63%.

When are the longest days in Chennai?

The month with the longest days in Chennai is June, with an average of 12.9h of daylight.

When is the lowest UV index in Chennai?

October is the month with the lowest UV index in Chennai, with an average maximum UV index of 6.

What is the most humid month in Chennai?

The most humid month is November, with an average relative humidity of 76%.

What is the wettest month in Chennai?

November is the month with the most rainfall in Chennai, India. Rain falls for 18.4 days and accumulates 213mm (8.39") of precipitation.

What is the month with the least sunshine in Chennai?

November and December, with an average of 6.3h of sunshine, are months with the least sunshine.

What is the month with the shortest days in Chennai?

December has the shortest days of the year, with an average of 11.4h of daylight.

Average temperature
Chennai, India

Average temperature - Chennai, India

The warmest month (with the highest average high temperature) is May (34.8°C).
The month with the lowest average high temperature is January (27.3°C).

The month with the highest average low temperature is May (29.6°C).
The coldest month (with the lowest average low temperature) is January (23.4°C).

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Average pressure
Chennai, India

Average pressure - Chennai, India

The month with the highest atmospheric pressure is January (1013.6mbar).
The month with the lowest atmospheric pressure is June (1004.2mbar).

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Average wind speed
Chennai, India

Average wind speed - Chennai, India

The windiest month (with the highest average wind speed) is May (19.2km/h).
The calmest months (with the lowest average wind speed) are February and October (12.8km/h).

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Average rainfall
Chennai, India

Average rainfall - Chennai, India

The wettest month (with the highest rainfall) is November (213mm).
The driest month (with the least rainfall) is February (6mm).

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Average rainfall days
Chennai, India

Average rainfall days - Chennai, India

The month with the highest number of rainy days is September (23.1 days).
The month with the least rainy days is February (2.9 days).

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Average sea temperature
Chennai, India

Average sea temperature - Chennai, India

The best month for swimming (with the highest average sea temperature) is May (29.5°C).
The coldest month (with the lowest average sea temperature) is January (26.8°C).

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Average daylight / Average sunshine
Chennai, India

Average daylight / Average sunshine - Chennai, India

The month with the longest days is June (Average daylight: 12.9h).
The month with the shortest days is December (Average daylight: 11.4h).

The month with the most sunshine is May (Average sunshine: 11.9h).
Months with the least sunshine are November and December (Average sunshine: 6.3).

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Average sunshine days
Chennai, India

Average sunshine days - Chennai, India

The month with the most sunshine days is March (26.5 days).
The month with the least sunshine days is September (6.2 days).

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Average visibility
Chennai, India

Average visibility - Chennai, India

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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