September weather forecast
Bernard, LA

The first month of the autumn, September, is still a hot month in Bernard, Louisiana, with an average temperature varying between 86.9°F (30.5°C) and 69.4°F (20.8°C).

Temperature

A minimal variation is noted in Bernard's average high-temperature at the onset of September, reaching a still tropical 86.9°F (30.5°C) from August's 91.4°F (33°C). In Bernard, the average nighttime temperature during September is a pleasant 69.4°F (20.8°C).

Heat index

The heat index value during September is appraised at a fiery hot 102.2°F (39°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In September, the average relative humidity is 78%.

Rainfall

In September, the rain falls for 15.2 days. Throughout September, 1.26" (32mm) of precipitation is accumulated. In Bernard, during the entire year, the rain falls for 140.7 days and collects up to 15.55" (395mm) of precipitation.

Snowfall

Months with snowfall are January, February, September and December. September is the first month it typically snows. Throughout September, there are 0.1 snowfall days. In Bernard, Louisiana, during the entire year, snow falls for 0.5 days.

Daylight

In Bernard, the average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 6:48 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:57 pm CDT.

Sunshine

The average sunshine in September is 9.6h.

UV index

In Bernard, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 6 during September leads to these advisories:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.