September weather forecastUsina Beach, FL
September
Weather in September
The first month of the autumn, September, is still a hot month in Usina Beach, Florida, with temperature in the range of an average low of 75.9°F (24.4°C) and an average high of 86°F (30°C).Temperature
Usina Beach in September witnesses an average high-temperature of a still tropical 86°F (30°C), indicating a slight variation from August's 88.5°F (31.4°C). September nights are marked by an average temperature drop to a warm 75.9°F (24.4°C).Heat index
In September, the heat index is calculated to be a torrid 98.6°F (37°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
In Usina Beach, the average relative humidity in September is 76%.Rainfall
In Usina Beach, in September, during 19.8 rainfall days, 4.09" (104mm) of precipitation is typically accumulated. Throughout the year, there are 186.8 rainfall days, and 30.2" (767mm) of precipitation is accumulated.Snowfall
In Usina Beach, snow does not fall in February through November.Daylight
In Usina Beach, the average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 7:02 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:11 pm EDT.
Sunshine
The average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 6 in September leads to these guidelines:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Usina Beach, FL
- Average high temperature in September: 86°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (64°F).
- Average low temperature in September: 75.9°F
The month with the highest average low temperature is August (77.5°F).
The coldest month (with the lowest average low temperature) is January (51.4°F).
Average pressure in September
Usina Beach, FL
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.98"Hg).
Average wind speed in September
Usina Beach, FL
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in September
Usina Beach, FL
- Average humidity in September: 76%
The months with the highest relative humidity are July, August and December (77%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Usina Beach, FL
- Average rainfall in September: 4.09"
The wettest month (with the highest rainfall) is August (4.33").
The driest month (with the least rainfall) is March (1.18").
Average rainfall days in September
Usina Beach, FL
- Average rainfall days in September: 19.8 days
The month with the highest number of rainy days is August (24.8 days).
The month with the least rainy days is February (10.3 days).
Average snowfall days in September
Usina Beach, FL
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Usina Beach, 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 36min
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 48min).
Average sunshine days in September
Usina Beach, FL
- Average sunshine days in September: 6.8 days
The month with the most sunshine days is March (17.9 days).
The month with the least sunshine days is August (4.4 days).
Average UV index in September
Usina Beach, 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
Usina Beach, FL
- Average cloud cover in September: 32
The month with the most cloud cover is December (Cloud cover 38).
The month with the least cloud cover is May (Cloud cover 26).
Average visibility in September
Usina Beach, 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).
