September weather forecast
San Perlita, TX

The first month of the autumn, September, is still a tropical month in San Perlita, Texas, with an average temperature varying between 77.9°F (25.5°C) and 90.5°F (32.5°C).

Temperature

September's average high-temperature stands at a hot 90.5°F (32.5°C), showing little deviation from August's 95.5°F (35.3°C). San Perlita encounters a steady low-temperature average of 77.9°F (25.5°C) throughout the month of September.

Heat index

The average heat index in September is calculated to be a blisteringly hot 107.6°F (42°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are of high significance for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In San Perlita, Texas, the average relative humidity in September is 69%.

Rainfall

The month with the most rainfall in San Perlita is September, when the rain falls for 17.2 days and typically aggregates up to 2.64" (67mm) of precipitation.

Daylight

In San Perlita, Texas, the average length of the day in September is 12h and 18min.
On the first day of the month, sunrise is at 7:10 am and sunset at 7:50 pm. On the last day of September, in San Perlita, sunrise is at 7:22 am and sunset at 7:17 pm CDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

In September, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily high UV index of 7 during September translates into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.