September weather forecast
Walajapet, India

The last month of the rainy (monsoon) season, September, is another hot month in Walajapet, India, with an average temperature fluctuating between 33.5°C (92.3°F) and 24.5°C (76.1°F).

Temperature

September reports an average high-temperature of a still hot 33.5°C (92.3°F), slightly varied from August's 34.4°C (93.9°F). An average nighttime temperature of 24.5°C (76.1°F) is recorded in Walajapet during September.

Heat index

Throughout September, the heat index is estimated at a blistering 44°C (111.2°F). Attention: Heat exhaustion and heat cramps are anticipated. Prolonged effort can result in heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital 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 innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The average relative humidity in September in Walajapet is 67%.

Rainfall

In Walajapet, India, in September, it is raining for 23.3 days, with typically 86mm (3.39") of accumulated precipitation. Throughout the year, in Walajapet, India, there are 164.7 rainfall days, and 600mm (23.62") of precipitation is accumulated.

Daylight

In Walajapet, India, the average length of the day in September is 12h and 12min.
On the first day of September, sunrise is at 6:01 am and sunset at 6:23 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 6:03 pm IST.

Sunshine

In September, the average sunshine is 8.6h.

UV index

The average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index, 7 in September, converts into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.