September weather forecast
Dupont, FL

The first month of the autumn, September, is still a warm month in Dupont, Florida, with temperature in the range of an average low of 76.1°F (24.5°C) and an average high of 85.1°F (29.5°C).

Temperature

The transition into September shows a subtle variation to a warm 85.1°F (29.5°C) from August's 87.8°F (31°C) in the average high-temperature. Throughout the nights in September, Dupont notes an average low of 76.1°F (24.5°C), a small dip from the daytime peak.

Heat index

For September, the heat index is appraised at a very hot 95°F (35°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to 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.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In September, the average relative humidity is 77%.

Rainfall

In September, the rain falls for 21.5 days. Throughout September, 4.76" (121mm) of precipitation is accumulated. Throughout the year, there are 191.6 rainfall days, and 35.2" (894mm) of precipitation is accumulated.

Daylight

In Dupont, the average length of the day in September is 12h and 20min.
On the first day of September in Dupont, sunrise is at 7:02 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:11 pm EDT.

Sunshine

The average sunshine in September is 8.7h.

UV index

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, a daily UV index of 6 turns into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. 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. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.