September weather forecast
Grant, LA

The first month of the autumn, September, is also a hot month in Grant, Louisiana, with temperature in the range of an average high of 86.9°F (30.5°C) and an average low of 69.4°F (20.8°C).

Temperature

September's arrival brings an average high-temperature of a still tropical 86.9°F (30.5°C), slightly deviating from August's 91.4°F (33°C). An average temperature of 69.4°F (20.8°C) is recorded in Grant during the nights in September.

Heat index

During September, the heat index is calculated to be a sweltering 102.2°F (39°C). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
Heat index's context suggests values are appropriate for shady areas and slight breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. 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. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In Grant, the average relative humidity in September is 78%.

Rainfall

In Grant, in September, it is raining for 15.2 days, with typically 1.26" (32mm) of accumulated precipitation. In Grant, during the entire year, the rain falls for 140.7 days and collects up to 15.55" (395mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in September in Grant is 12h and 20min.
On the first day of September, sunrise is at 6:48 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:57 pm CDT.

Sunshine

In Grant, Louisiana, the average sunshine in September is 9.6h.

UV index

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In September, an average UV index of 6 transforms into the following instructions:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.