September weather forecast
Galliano, LA

The first month of the autumn, September, is still a hot month in Galliano, Louisiana, with temperature in the range of an average low of 75.6°F (24.2°C) and an average high of 86.4°F (30.2°C).

Temperature

The advent of September brings an average high-temperature of a still hot 86.4°F (30.2°C), almost identical to the preceding month. Galliano temperatures generally rest at a low of 75.6°F (24.2°C) during the September nights.

Heat index

Throughout September, the heat index is computed to be a sweltering 98.6°F (37°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are especially crucial for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In Galliano, the average relative humidity in September is 75%.

Rainfall

In September, in Galliano, Louisiana, the rain falls for 15.5 days. Throughout September, 1.3" (33mm) of precipitation is accumulated. Throughout the year, there are 139.9 rainfall days, and 16.38" (416mm) of precipitation is accumulated.

Daylight

The average length of the day in September in Galliano is 12h and 20min.
On the first day of the month, sunrise is at 6:39 am and sunset at 7:22 pm. On the last day of September, in Galliano, sunrise is at 6:54 am and sunset at 6:47 pm CDT.

Sunshine

The average sunshine in September is 10.1h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 7 in September transforms into the following instructions:
Ward off overexposure. Defence against solar harm is crucial. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.