September weather forecastUtopia, FL
September
Weather in September
September, the first month of the autumn in Utopia, is also a hot month, with an average temperature ranging between min 77.5°F (25.3°C) and max 86.7°F (30.4°C).Temperature
September ushers in an average high-temperature of a still tropical 86.7°F (30.4°C), aligning closely with the preceding month. An average nighttime temperature of 77.5°F (25.3°C) is recorded during September.Heat index
The heat index value for September is calculated to be a sweltering 98.6°F (37°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.The metrics for the heat index are tailored for both shady environments and light winds. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
In September, the average relative humidity is 75%.Rainfall
In Utopia, in September, during 21.5 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. Throughout the year, in Utopia, Florida, there are 156.3 rainfall days, and 18.82" (478mm) of precipitation is accumulated.Daylight
In September, the average length of the day in Utopia, Florida, is 12h and 19min.On the first day of September in Utopia, Florida, sunrise is at 7:08 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:16 pm EDT.
Sunshine
In Utopia, the average sunshine in September is 9.1h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 7 in September, converts into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Utopia, FL
- Average high temperature in September: 86.7°F
The warmest month (with the highest average high temperature) is August (88.3°F).
The month with the lowest average high temperature is January (68.2°F).
- Average low temperature in September: 77.5°F
The month with the highest average low temperature is August (80.1°F).
The coldest month (with the lowest average low temperature) is January (56.8°F).
Average pressure in September
Utopia, FL
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).
Average wind speed in September
Utopia, FL
- Average wind speed in September: 7.6mph
The windiest months (with the highest average wind speed) are January and November (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in September
Utopia, FL
- Average humidity in September: 75%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are March, May and October (73%).
Average rainfall in September
Utopia, FL
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is August (4.09").
The driest months (with the least rainfall) are February and March (0.47").
Average rainfall days in September
Utopia, FL
- Average rainfall days in September: 21.5 days
The month with the highest number of rainy days is August (23.6 days).
The month with the least rainy days is February (6.3 days).
Average daylight in September /
Average sunshine in September
Utopia, FL
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in September: 9h and 6min
The month with the most sunshine is May (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in September
Utopia, FL
- Average sunshine days in September: 5 days
The month with the most sunshine days is January (22.9 days).
The month with the least sunshine days is August (4.4 days).
Average UV index in September
Utopia, FL
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in September
Utopia, FL
- Average cloud cover in September: 28
The months with the most cloud cover are January and December (Cloud cover 29).
The month with the least cloud cover is May (Cloud cover 22).
Average visibility in September
Utopia, 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).





