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
In January, the average high-temperature is 28.8°C (83.8°F), and the average low-temperature is 20.9°C (69.6°F). The average relative humidity is 73%.
Weather in January »
In Chennai, the average high-temperature is 30.5°C (86.9°F), and the average low-temperature is 22°C (71.6°F). The average relative humidity in February is 72%.
Weather in February »
In Chennai, the average high-temperature is 32.5°C (90.5°F), and the average low-temperature is 23.8°C (74.8°F). In March, the average relative humidity in Chennai, India, is 70%.
Weather in March »
The average high-temperature, is 34.3°C (93.7°F), while the average low-temperature is 26.4°C (79.5°F). In Chennai, the average relative humidity in April is 69%.
Weather in April »
The average high-temperature, is 36.8°C (98.2°F), while the average low-temperature is 27.9°C (82.2°F). In Chennai, the average relative humidity is 62%.
Weather in May »
The warmest month is June, with an average high-temperature of 36.9°C (98.4°F) and an average low-temperature of 27.5°C (81.5°F). With an average relative humidity of 57%, June is the least humid month in Chennai.
Weather in June »
In July, in Chennai, the average high-temperature is 35°C (95°F), and the average low-temperature is 26.3°C (79.3°F). In July, the average relative humidity in Chennai is 64%.
Weather in July »
In August, in Chennai, the average high-temperature is 34.3°C (93.7°F), and the average low-temperature is 25.7°C (78.3°F). In Chennai, the average relative humidity in August is 66%.
Weather in August »
In September, the average high-temperature is 33.9°C (93°F), and the average low-temperature is 25.5°C (77.9°F). In Chennai, the average relative humidity in September is 72%.
Weather in September »
In Chennai, the average high-temperature is 31.8°C (89.2°F), and the average low-temperature is 24.5°C (76.1°F). The average relative humidity is 77%.
Weather in October »
In Chennai, India, the average high-temperature is 29.6°C (85.3°F), and the average low-temperature is 23°C (73.4°F). With an average relative humidity of 78%, November is the most humid month.
Weather in November »
With an average high-temperature of 28.5°C (83.3°F) and an average low-temperature of 21.9°C (71.4°F), December is the coldest month in Chennai. In Chennai, India, the average relative humidity is 77%.
Weather in December »

How many days does it rain in Chennai?

In Chennai, during the entire year, the rain falls for 59.1 days and collects up to 1391.5mm (54.8") of precipitation.

What is the month with the coldest sea water in Chennai?

January is the month with the coldest seawater, with an average sea temperature of 26.8°C (80.2°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the driest month in Chennai?

February is the month with the least rainfall in Chennai. Rain falls for 0.4 days and accumulates 2.2mm (0.1") of precipitation.

What are the months with the highest UV index in Chennai?

Months with the highest UV index in Chennai, India, are February through September, with an average UV index of 12.

What month has the most sunshine in Chennai?

With an average of 9.7h of sunshine, April has the most sunshine of the year in Chennai.

What month is the sea warmest in Chennai?

The month with the warmest seawater in Chennai, India, is May, with an average sea temperature of 29.5°C (85.1°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the warmest month in Chennai?

June is the warmest month, with an average high-temperature of 36.9°C (98.4°F) and an average low-temperature of 27.5°C (81.5°F).

What is the least humid month in Chennai?

June is the least humid month in Chennai, with an average relative humidity of 57%.

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.

What is the month with the least sunshine in Chennai?

July has the least sunshine of the year in Chennai, India, with an average of 6h of sunshine.

What is the most humid month in Chennai?

With an average relative humidity of 78%, November is the most humid month in Chennai.

What is the wettest month in Chennai?

The month with the most rainfall in Chennai, India, is November when the rain falls for 11.7 days and typically aggregates up to 407.4mm (16") of precipitation.

What is the coldest month in Chennai?

The coldest month is December, with an average high-temperature of 28.5°C (83.3°F) and an average low-temperature of 21.9°C (71.4°F).

What is the month with the shortest days in Chennai?

The month with the shortest days in Chennai is December, with an average of 11.4h of daylight.

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

The month with the lowest UV index is December, with an average UV index of 9.
Average temperature - Chennai, India
Average rainfall - Chennai, India

The wettest month (with the highest rainfall) is November (407.4mm).
The driest month (with the lowest rainfall) is February (2.2mm).

Average rainfall days - Chennai, India

The month with the highest number of rainy days is November (11.7 days).
The month with the lowest number of rainy days is March (0.3 days).

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).

Average daylight / Average sunshine - Chennai, India
Average UV index - Chennai, India

Months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).

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