September weather forecast
Westwego, LA

The first month of the autumn, September, is still a hot month in Westwego, Louisiana, with an average temperature fluctuating between 86.5°F (30.3°C) and 75.2°F (24°C).

Temperature

The onset of September marks an average high-temperature of a still hot 86.5°F (30.3°C), hardly differing from August's 89.1°F (31.7°C). Westwego records an average nighttime low-temperature of 75.2°F (24°C) throughout September.

Heat index

September's average heat index is estimated at a sweltering 98.6°F (37°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. 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.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In Westwego, the average relative humidity in September is 74%.

Rainfall

In Westwego, during September, the rain falls for 10.9 days and regularly aggregates up to 0.43" (11mm) of precipitation. In Westwego, during the entire year, the rain falls for 104.1 days and collects up to 8.39" (213mm) of precipitation.

Daylight

In Westwego, the average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 6:38 am and sunset at 7:22 pm. On the last day of September, in Westwego, sunrise is at 6:53 am and sunset at 6:46 pm CDT.

Sunshine

In September, the average sunshine is 10.2h.

UV index

The months with the highest UV index in Westwego, Louisiana, are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 7 suggests this advice:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Employ a wide-brim hat for potent defense against up to 50% of UV rays.