September weather forecastDupont, FL
September
Weather in September
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dupont, FL
- Average high temperature in September: 85.1°F
The warmest month (with the highest average high temperature) is August (87.8°F).
The month with the lowest average high temperature is January (65.7°F).
- Average low temperature in September: 76.1°F
The month with the highest average low temperature is August (78.4°F).
The coldest month (with the lowest average low temperature) is January (53.8°F).
Average pressure in September
Dupont, FL
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in September
Dupont, FL
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in September
Dupont, FL
- Average humidity in September: 77%
The month with the highest relative humidity is August (78%).
The month with the lowest relative humidity is March (72%).
Average rainfall in September
Dupont, FL
- Average rainfall in September: 4.76"
The wettest month (with the highest rainfall) is August (5.28").
The driest month (with the least rainfall) is March (1.38").
Average rainfall days in September
Dupont, FL
- Average rainfall days in September: 21.5 days
The month with the highest number of rainy days is August (24.2 days).
The month with the least rainy days is February (10.6 days).
Average daylight in September /
Average sunshine in September
Dupont, FL
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in September
Dupont, FL
- Average sunshine days in September: 6.2 days
The month with the most sunshine days is March (17.2 days).
The month with the least sunshine days is August (4.8 days).
Average UV index in September
Dupont, FL
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in September
Dupont, FL
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 37).
The months with the least cloud cover are May and July (Cloud cover 27).
Average visibility in September
Dupont, FL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
