Cuddalore
India
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Cuddalore, India

The last month of the rainy (monsoon) season, September, is another hot month in Cuddalore, India, with average temperature fluctuating between 32.3°C (90.1°F) and 26.8°C (80.2°F).

Temperature

In September, the average high-temperature is essentially the same as in August - a still tropical 32.3°C (90.1°F). In September, the average low-temperature is 26.8°C (80.2°F).

Heat index

In September, the average heat index is estimated at a scorching 42.1°C (107.8°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 'apparent temperature', 'real feel', 'feels like', or 'felt air temperature', 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 (differences in body mass, height, and shape, metabolic differences, wind). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. 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 normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In September, the average relative humidity in Cuddalore is 72%.

Rainfall

In September, in Cuddalore, the rain falls for 22.1 days. Throughout September, 63mm (2.48") of precipitation is accumulated. In Cuddalore, during the entire year, the rain falls for 164.8 days and collects up to 537mm (21.14") of precipitation.

Sea temperature

In Cuddalore, India, the average water temperature is 29.3°C (84.7°F).
Note: 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.

Daylight

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

Sunshine

In September, the average sunshine in Cuddalore is 9.1h.

UV index

Months with the lowest UV index are January through March, August through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 7 interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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. 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. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in September in Cuddalore?

In Cuddalore, in September, the average high-temperature is 32.3°C (90.1°F), and the average low-temperature is 26.8°C (80.2°F). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), that calculates temperature value influenced by the moisture in the air, is appraised at 42.1°C (107.8°F).

What is the average humidity in September in Cuddalore?

In Cuddalore, India, the average relative humidity in September is 72%.

How much does it rain in Cuddalore in September?

In September, in Cuddalore, India, the rain falls for 22.1 days. Throughout September, 63mm (2.48") of precipitation is accumulated.

What is the water temperature in September in Cuddalore?

In Cuddalore, India, in September, the average water temperature is 29.3°C (84.7°F). 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.

How many hours of daylight does Cuddalore have in September?

The average length of the day in September in Cuddalore, India, is 12.2h.

How many hours of sunshine does Cuddalore have in September?

The average sunshine in September in Cuddalore, India, is 9.1h.

What are the months with the lowest UV index in Cuddalore?

January through March, August through December, with an average maximum UV index of 7, are months with the lowest UV index in Cuddalore.

What is the UV index intensity in September in Cuddalore?

The average daily maximum UV index in September in Cuddalore is 7. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to the Sun's UV rays.
Average temperature in September - Cuddalore, India
  • Average high temperature in September: 32.3°C

The warmest month (with the highest average high temperature) is May (35.2°C).
The month with the lowest average high temperature is January (27.7°C).

  • Average low temperature in September: 26.8°C

The month with the highest average low temperature is May (28.9°C).
The coldest month (with the lowest average low temperature) is January (22.8°C).

Average humidity in September - Cuddalore, India
  • Average humidity in September: 72%

The month with the highest relative humidity is November (78%).
The month with the lowest relative humidity is June (61%).

Average rainfall in September - Cuddalore, India
  • Average rainfall in September: 63mm

The wettest month (with the highest rainfall) is October (116mm).
The driest month (with the lowest rainfall) is February (6mm).

Average rainfall days in September - Cuddalore, India
  • Average rainfall days in September: 22.1 days

The month with the highest number of rainy days is October (22.8 days).
The month with the lowest number of rainy days is February (3.9 days).

Average sea temperature in September - Cuddalore, India
  • Average sea temperature in September: 29.3°C

Best months for swimming (with the highest average sea temperature) are April and May (29.8°C).
The coldest month (with the lowest average sea temperature) is January (26.8°C).

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

The month with the longest days is June (Average daylight: 12.8h).
The month with shortest days is December (Average daylight: 11.4h).

  • Average sunshine in September: 9.1h

The month with most sunshine is May (Average sunshine: 11.9h).
The month with least sunshine is December (Average sunshine: 6.2h).

Average UV index in September - Cuddalore, 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, February, March, August, September, October, November and December (UV index 7).