September weather forecast and climate
Mugalivakkam, India

The last month of the rainy (monsoon) season, September, is another tropical month in Mugalivakkam, India, with average temperature fluctuating between 32.9°C (91.2°F) and 26.9°C (80.4°F).

Temperature

In Mugalivakkam, the average high-temperature is practically the same as in August - a still tropical 32.9°C (91.2°F). The average low-temperature, in Mugalivakkam, is 26.9°C (80.4°F).

Heat index

In September, the average heat index is estimated at a blistering 43.2°C (109.8°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 'real feel', 'felt air temperature', 'apparent temperature', or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, 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 particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in Mugalivakkam is 70%.

Rainfall

In September, in Mugalivakkam, the rain falls for 25 days. Throughout September, 104mm (4.09") of precipitation is accumulated. Throughout the year, there are 169.2 rainfall days, and 825mm (32.48") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12.2h.

Sunshine

In Mugalivakkam, the average sunshine in September is 10.5h.

UV index

The average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 7 in September interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in September in Mugalivakkam?

The average high-temperature, in September, in Mugalivakkam, is 32.9°C (91.2°F), while the average low-temperature is 26.9°C (80.4°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), that combines relative humidity and air temperature, in September is calculated to 43.2°C (109.8°F).

What is the average humidity in September in Mugalivakkam?

In September, the average relative humidity in Mugalivakkam is 70%.

How many days does it rain in September in Mugalivakkam?

In Mugalivakkam, India, during September, the rain falls for 25 days and regularly aggregates up to 104mm (4.09") of precipitation.

How many hours of daylight does Mugalivakkam have in September?

In September, the average length of the day is 12.2h.

How long on average sun shines in September in Mugalivakkam?

In Mugalivakkam, India, the average sunshine in September is 10.5h.

What is the UV index intensity in September in Mugalivakkam?

The average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV rays.
Average temperature in September - Mugalivakkam, India
  • Average high temperature in September: 32.9°C

The warmest month (with the highest average high temperature) is May (36.8°C).
The month with the lowest average high temperature is December (27.9°C).

  • Average low temperature in September: 26.9°C

The month with the highest average low temperature is May (29.4°C).
The coldest month (with the lowest average low temperature) is January (22.6°C).

Average pressure in September - Mugalivakkam, India
  • Average pressure in September: 1006.8mbar

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

Average wind speed in September - Mugalivakkam, India
  • Average wind speed in September: 12.6km/h

The windiest month (with the highest average wind speed) is May (17.3km/h).
The calmest month (with the lowest average wind speed) is October (11.6km/h).

Average humidity in September - Mugalivakkam, India
  • Average humidity in September: 70%

Months with the highest relative humidity are November and December (76%).
The month with the lowest relative humidity is June (58%).

Average rainfall in September - Mugalivakkam, India
  • Average rainfall in September: 104mm

The wettest month (with the highest rainfall) is November (191mm).
The driest month (with the least rainfall) is February (6mm).

Average rainfall days in September - Mugalivakkam, India
  • Average rainfall days in September: 25 days

The month with the highest number of rainy days is September (25 days).
The month with the least rainy days is February (3.4 days).

Average daylight in September / Average sunshine in September - Mugalivakkam, India
  • Average daylight in September: 12.2h

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

  • Average sunshine in September: 10.5h

The month with the most sunshine is May (Average sunshine: 11.8h).
Months with the least sunshine are November and December (Average sunshine: 6.2).

Average sunshine days in September - Mugalivakkam, India
  • Average sunshine days in September: 3.5 days

The month with the most sunshine days is March (25.8 days).
The month with the least sunshine days is September (3.5 days).

Average UV index in September - Mugalivakkam, India
  • Average UV index in September: 7

Months with the highest UV index are April, May, June and July (UV index 8).
Months with the lowest UV index are January, November and December (UV index 6).

Average cloud cover in September - Mugalivakkam, India
  • Average cloud cover in September: 38

The month with the most cloud cover is August (Cloud cover 42).
Months with the least cloud cover are March and April (Cloud cover 13).

Average visibility in September - Mugalivakkam, India
  • Average visibility in September: 10km

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).