September weather forecast
Ballygunge, India

September, the last month of the rainy (monsoon) season in Ballygunge, is another tropical month, with an average temperature varying between 25.9°C (78.6°F) and 32.1°C (89.8°F).

Temperature

September reports an average high-temperature of a still tropical 32.1°C (89.8°F), slightly varied from August's 32.8°C (91°F). Ballygunge, in September, witnesses an average low-temperature of 25.9°C (78.6°F).

Heat index

The heat index value during September is calculated to be a life-threatening hot 45°C (113°F). Stay alert: Heat cramps and heat exhaustion are expected. Heatstroke is a likely outcome of ongoing activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. 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

The most humid month in Ballygunge, India, is September, with an average relative humidity of 81%.

Rainfall

In Ballygunge, in September, during 18.9 rainfall days, 32mm (1.26") of precipitation is typically accumulated. Throughout the year, there are 110.7 rainfall days, and 239mm (9.41") of precipitation is accumulated.

Daylight

The average length of the day in September in Ballygunge, India, is 12h and 17min.
On the first day of the month, sunrise is at 5:19 am and sunset at 5:53 pm. On the last day of September, sunrise is at 5:27 am and sunset at 5:25 pm IST.

Sunshine

The average sunshine in September is 7.6h.

UV index

In Ballygunge, India, the average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 7 in September interprets into the following advice:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Stay sun-safe with clothing that is both closely woven and worn loosely.