September weather forecast
Valinokkam, India

September, the last month of the rainy (monsoon) season in Valinokkam, is another hot month, with an average temperature ranging between max 31°C (87.8°F) and min 27.6°C (81.7°F).

Temperature

As Valinokkam steps into September, the average high-temperature holds at a still tropical 31°C (87.8°F), hinting at a minor fluctuation from the prior month. September nights in Valinokkam witness a slight temperature decrease, averaging at a warm 27.6°C (81.7°F).

Heat index

During September, the heat index is evaluated at a sweltering 37°C (98.6°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
The heat index's values are generally associated with conditions in shade and light breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In September, the average relative humidity is 69%.

Rainfall

In Valinokkam, India, in September, it is raining for 16.2 days, with typically 44mm (1.73") of accumulated precipitation. Throughout the year, there are 173.6 rainfall days, and 620mm (24.41") of precipitation is accumulated.

Daylight

In Valinokkam, the average length of the day in September is 12h and 11min.
On the first day of the month, sunrise is at 6:06 am and sunset at 6:24 pm. On the last day of September, in Valinokkam, India, sunrise is at 6:03 am and sunset at 6:06 pm IST.

Sunshine

In Valinokkam, India, the average sunshine in September is 9.4h.

UV index

The months with the lowest UV index in Valinokkam are January through March, June through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 7 during September translates into these guidelines:
Shield from overexposure. Defense against sun-related harm is required. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.