September weather forecast
Gentilly, LA

The first month of the autumn, September, is still a hot month in Gentilly, Louisiana, with temperature in the range of an average low of 76.1°F (24.5°C) and an average high of 86.5°F (30.3°C).

Temperature

As Gentilly steps into September, the average high-temperature holds at a still hot 86.5°F (30.3°C), hinting at a minor fluctuation from the prior month. During the month of September, the nighttime temperature in Gentilly, Louisiana, falls to an average of 76.1°F (24.5°C).

Heat index

For most parts of September, the heat index is evaluated at a torrid 98.6°F (37°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is found by incorporating humidity levels into the air temperature measurement. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. 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. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In Gentilly, the average relative humidity in September is 73%.

Rainfall

In Gentilly, during September, the rain falls for 18.5 days and regularly aggregates up to 4.06" (103mm) of precipitation. Throughout the year, in Gentilly, there are 178.6 rainfall days, and 44.25" (1124mm) of precipitation is accumulated.

Daylight

The average length of the day in September in Gentilly is 12h and 20min.
On the first day of September in Gentilly, sunrise is at 6:37 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:46 pm CDT.

Sunshine

The average sunshine in September in Gentilly is 10.1h.

UV index

In Gentilly, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In September, the maximum UV index of 6 transforms into these recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.