September weather forecast
Gentilly, LA

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

Temperature

Gentilly's transition from August to September introduces an average high-temperature of a still hot 86.5°F (30.3°C), marking an insignificant variation from the 89.4°F (31.9°C). Gentilly observes an average low-temperature of 76.1°F (24.5°C) during September.

Heat index

Throughout September, the heat index is estimated at a torrid 98.6°F (37°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

The average relative humidity in September is 73%.

Rainfall

In Gentilly, in September, it is raining for 18.5 days, with typically 4.06" (103mm) of accumulated precipitation. In Gentilly, during the entire year, the rain falls for 178.6 days and collects up to 44.25" (1124mm) of precipitation.

Daylight

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

Sunshine

In September, the average sunshine in Gentilly is 10.1h.

UV index

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 6 during September translates into the following directions:
Prevent overexposure. Protection from the sun's harmful effects is needed. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.