September weather forecast
Boutte, LA

September, the first month of the autumn in Boutte, is still a hot month, with temperature in the range of an average low of 74.1°F (23.4°C) and an average high of 86.5°F (30.3°C).

Temperature

In September, the average high-temperature is almost the same as in August - a still tropical 86.5°F (30.3°C). The average low-temperature, in Boutte, is 74.1°F (23.4°C).

Heat index

In September, the average heat index is evaluated at a sweltering 98.6°F (37°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, clothing, metabolic differences). Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. 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. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In September, the average relative humidity in Boutte is 76%.

Rainfall

In Boutte, during September, the rain falls for 19.9 days and regularly aggregates up to 2.83" (72mm) of precipitation. Throughout the year, in Boutte, Louisiana, there are 180.8 rainfall days, and 33.39" (848mm) of precipitation is accumulated.

Snowfall

February through November are months without snowfall.

Daylight

The average length of the day in September in Boutte is 12h and 20min.
On the first day of the month, sunrise is at 6:38 am and sunset at 7:24 pm. On the last day of September, in Boutte, sunrise is at 6:54 am and sunset at 6:48 pm CDT.

Sunshine

The average sunshine in September is 10.2h.

UV index

In Boutte, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 6 in September transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.