September weather forecast
Delta, LA

As summer slowly recedes, September welcomes the onset of autumn with slightly cooler temperatures. Despite the decrease in heat, the weather remains warm, making it a lovely time of the year for outdoor activities. With a somewhat cooler temperature and lower rainfall of 2.48" (63mm), September is a great time to visit Delta, Louisiana. September also witnesses the wind speed of around 5.2mph (8.4km/h), adding a breeze to the slightly mellow sunshine. As the month progresses into October, the drop in temperature and humidity becomes more apparent.

Temperature

Delta experiences a minor change to a still tropical 87.8°F (31°C) in average high-temperature during September, closely reflecting August. Throughout September, the average low-temperature in Delta dips to an enjoyable 67.6°F (19.8°C).

Heat index

For most parts of September, the heat index is appraised at a torrid 102.2°F (39°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The average relative humidity in September in Delta is 73%.

Rainfall

In Delta, Louisiana, in September, it is raining for 15 days, with typically 2.48" (63mm) of accumulated precipitation. In Delta, Louisiana, during the entire year, the rain falls for 169.7 days and collects up to 38.82" (986mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Delta, the average length of the day in September is 12h and 21min.
On the first day of September in Delta, sunrise is at 6:39 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:49 pm CDT.

Sunshine

In Delta, the average sunshine in September is 9.8h.

UV index

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 6 in September suggests the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.