Chennai
India
Long-term weather forecast
Long-term weather forecast

March 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
March, the first month of the pre-monsoon summer, in Chennai, is still a tropical month, with average temperature fluctuating between 23.8°C (74.8°F) and 32.5°C (90.5°F).
The ideal sea water temperature of 28.1°C (82.6°F) and only 0.3 rainfall days, with 4mm (0.2") of accumulated rainfall, make March the best time for swimming and other water activities.

Temperature

In Chennai, the average high-temperature in March is almost the same as in February - a still hot 32.5°C (90.5°F). In Chennai, the average low-temperature is 23.8°C (74.8°F).

Heat index

In March, the average heat index is evaluated at a scorching 41.9°C (107.4°F). Be wary - heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, differences in body mass, height, and shape, pregnancy). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In March, the average relative humidity in Chennai is 70%.

Rainfall

In Chennai, during March, the rain falls for 0.3 days and regularly aggregates up to 4mm (0.2") of precipitation. In Chennai, during the entire year, the rain falls for 59.1 days and collects up to 1391.5mm (54.8") of precipitation.

Sea temperature

In Chennai, the average water temperature is 28.1°C (82.6°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In March, the average length of the day in Chennai, India, is 12.1h.

Sunshine

The average sunshine in March is 9.5h.

UV index

Months with the highest UV index in Chennai are February through September, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In March, the average maximum UV index of 12 translate into the following recommendations:
Take all necessary precautions, as unprotected skin can burn in minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in March in Chennai?

The average high-temperature, in March, is 32.5°C (90.5°F), while the average low-temperature is 23.8°C (74.8°F). In March, the average heat index (a.k.a. 'felt air temperature', 'feels like'), that combines both air temperature and relative humidity, is calculated to 41.9°C (107.4°F).

What is the average humidity in March in Chennai?

In Chennai, the average relative humidity in March is 70%.

How much does it rain in Chennai in March?

In March, in Chennai, the rain falls for 0.3 days. Throughout March, 4mm (0.2") of precipitation is accumulated.

How warm is the water in March in Chennai?

In March, the average sea temperature in Chennai, India, is 28.1°C (82.6°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.

How many hours of daylight does Chennai have in March?

In March, the average length of the day in Chennai, India, is 12.1h.

How many hours of sunshine does Chennai have in March?

In Chennai, the average sunshine in March is 9.5h.

When is the highest UV index in Chennai?

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

What is the UV index reading in March in Chennai?

In Chennai, India, the average daily maximum UV index in March is 12. A UV Index value of 11, and more, symbolizes an extreme health threat from unsafe exposure to the Sun's UV rays.
Average temperature in March - Chennai, India
  • Average high temperature in March: 32.5°C

The warmest month (with the highest average high temperature) is June (36.9°C).
The month with the lowest average high temperature is December (28.5°C).

  • Average low temperature in March: 23.8°C

The month with the highest average low temperature is May (27.9°C).
The coldest month (with the lowest average low temperature) is January (20.9°C).

Average humidity in March - Chennai, India
  • Average humidity in March: 70%

The month with the highest relative humidity is November (78%).
The month with the lowest relative humidity is June (57%).

Average rainfall in March - Chennai, India
  • Average rainfall in March: 4mm

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 in March - Chennai, India
  • Average rainfall days in March: 0.3 days

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 in March - Chennai, India
  • Average sea temperature in March: 28.1°C

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 in March / Average sunshine in March - Chennai, India
  • Average daylight in March: 12.1h

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

  • Average sunshine in March: 9.5h

The month with most sunshine is April (Average sunshine: 9.7h).
The month with least sunshine is July (Average sunshine: 6h).

Average UV index in March - Chennai, India
  • Average UV index in March: 12

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).