September weather forecast
Guindy, India

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

Temperature

Guindy commences September with an average high-temperature of a still hot 32.9°C (91.2°F), maintaining a close resemblance to the previous month. Guindy usually reports an average low-temperature of 26.9°C (80.4°F) during the month of September.

Heat index

September's heat index is calculated to be a blistering 43°C (109.4°F). Keep guard: Heat cramps and heat exhaustion are likely. Continued activity increases the risk of heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

The average relative humidity in September in Guindy is 70%.

Rainfall

In Guindy, during September, the rain falls for 25 days and regularly aggregates up to 104mm (4.09") of precipitation. Throughout the year, there are 169.2 rainfall days, and 825mm (32.48") of precipitation is accumulated.

Daylight

In Guindy, the average length of the day in September is 12h and 12min.
On the first day of the month, sunrise is at 5:58 am and sunset at 6:20 pm. On the last day of September, in Guindy, sunrise is at 5:58 am and sunset at 5:59 pm IST.

Sunshine

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

UV index

In September, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 7 during September morphs into the following directions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.