September weather forecast
Harahan Junction, LA

September, the first month of the autumn in Harahan Junction, is still a hot month, with an average temperature ranging between max 86.5°F (30.3°C) and min 75.2°F (24°C).

Temperature

Transitioning into September, Harahan Junction experiences an average high-temperature of a still tropical 86.5°F (30.3°C), marking a minor shift from the preceding month. An average temperature of 75.2°F (24°C) is recorded during the nights in September.

Heat index

September's heat index is appraised at a sweltering 98.6°F (37°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The average relative humidity in September in Harahan Junction, Louisiana, is 74%.

Rainfall

In Harahan Junction, in September, it is raining for 10.9 days, with typically 0.43" (11mm) of accumulated precipitation. In Harahan Junction, during the entire year, the rain falls for 104.1 days and collects up to 8.39" (213mm) of precipitation.

Daylight

In September, the average length of the day in Harahan Junction is 12h and 20min.
On the first day of September in Harahan Junction, sunrise is at 6:38 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:47 pm CDT.

Sunshine

In September, the average sunshine is 10.2h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: In September, the maximum UV index of 7 suggests these recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.