September weather forecast
New Iberia, LA

September brings the arrival of fall in New Iberia, as temperatures begin their downward trend. Compared to August, residents get to enjoy slightly less humidity and an extended duration of sunshine. With the outgoing of summer, rainfall experiences a sharp decline, paving the way for autumn outdoor activities. Barometric pressure remains stable, showing marginal deviations. Wind rotations maintain a constant speed, fostering stable weather.

Temperature

The arrival of September in New Iberia denotes a barely perceptible change in the average high-temperatures to a still tropical 86.7°F (30.4°C) from August's 90°F (32.2°C). In September, New Iberia's temperature tends to fall to an average low of 70.9°F (21.6°C) during the night.

Heat index

The heat index for September is calculated to be a sweltering 102.2°F (39°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly important for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

The average relative humidity in September is 79%.

Rainfall

In September, the rain falls for 13.8 days. Throughout September, 1.18" (30mm) of precipitation is accumulated. In New Iberia, Louisiana, during the entire year, the rain falls for 129.6 days and collects up to 15.83" (402mm) of precipitation.

Snowfall

In New Iberia, snow does not fall in February through December.

Daylight

In New Iberia, the average length of the day in September is 12h and 20min.
On the first day of September in New Iberia, Louisiana, sunrise is at 6:44 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:53 pm CDT.

Sunshine

In September, the average sunshine is 10h.

UV index

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 6 translates into these guidelines:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.