September weather forecast
Wallisville, TX

September, the first month of the autumn in Wallisville, is also a hot month, with temperature in the range of an average high of 86.2°F (30.1°C) and an average low of 73.9°F (23.3°C).

Temperature

The shift into September records an average high-temperature of a still hot 86.2°F (30.1°C), subtly varied from August's 90.9°F (32.7°C). In Wallisville, September is marked by an average low-temperature of 73.9°F (23.3°C).

Heat index

September's average heat index is evaluated at a sweltering 98.6°F (37°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

The average relative humidity in September in Wallisville is 77%.

Rainfall

In Wallisville, in September, during 14.3 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. In Wallisville, during the entire year, the rain falls for 128.1 days and collects up to 13.11" (333mm) of precipitation.

Snowfall

January, September and December are months with snowfall in Wallisville. September is the first month it typically snows. Throughout September, there are 0.1 snowfall days. In Wallisville, during the entire year, snow falls for 0.4 days.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of September in Wallisville, sunrise is at 6:56 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:05 pm CDT.

Sunshine

In Wallisville, the average sunshine in September is 9.1h.

UV index

In Wallisville, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: In September, an average UV index of 6 transforms into the following instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.