Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Stepping into September, South Daytona records an average high-temperature of a still hot 86.4°F (30.2°C), almost consistent with August. Throughout September, the temperature falls to an average low of 75.9°F (24.4°C).Heat index
September's mean heat index is calculated to be a very hot 98.6°F (37°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.Realize that the values for the heat index are set for shaded places and light winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 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.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
The average relative humidity in September in South Daytona is 76%.Rainfall
In South Daytona, Florida, in September, it is raining for 19.7 days, with typically 4.21" (107mm) of accumulated precipitation. Throughout the year, there are 186.5 rainfall days, and 32.6" (828mm) of precipitation is accumulated.Daylight
In South Daytona, 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 7:45 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:10 pm EDT.
Sunshine
In September, the average sunshine in South Daytona is 8.8h.UV index
The months with the highest UV index in South Daytona are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 7 in September translates into this advice:
Inhibit overexposure. Warding off sun damage is of utmost importance. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in South Daytona in September?
What is the average humidity in September in South Daytona?
How many days does it rain in September in South Daytona?
How many hours of daylight does South Daytona have in September?
When are sunrise and sunset in September in South Daytona?
How long on average sun shines in September in South Daytona?
What are the months with the highest UV index in South Daytona?
What is the UV index intensity in September in South Daytona?
Average temperature in September
South Daytona, FL
- Average high temperature in September: 86.4°F
The warmest month (with the highest average high temperature) is August (89.2°F).
The month with the lowest average high temperature is January (66.7°F).
- Average low temperature in September: 75.9°F
The month with the highest average low temperature is August (77.7°F).
The coldest month (with the lowest average low temperature) is January (54.1°F).
Average pressure in September
South Daytona, 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
South Daytona, FL
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in September
South Daytona, FL
- Average humidity in September: 76%
The months with the highest relative humidity are July and August (77%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
South Daytona, FL
- Average rainfall in September: 4.21"
The wettest month (with the highest rainfall) is August (4.96").
The driest month (with the least rainfall) is March (1.34").
Average rainfall days in September
South Daytona, FL
- Average rainfall days in September: 19.7 days
The month with the highest number of rainy days is August (23.1 days).
The month with the least rainy days is December (10.5 days).
Average daylight in September /
Average sunshine in September
South Daytona, FL
- Average daylight in September: 12h and 2min
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 5min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 54min).
Average sunshine days in September
South Daytona, FL
- Average sunshine days in September: 7.5 days
The month with the most sunshine days is March (17.5 days).
The month with the least sunshine days is August (5.6 days).
Average UV index in September
South Daytona, 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
South Daytona, FL
- Average cloud cover in September: 30
The months with the most cloud cover are January, February, November and December (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 27).
Average visibility in September
South Daytona, 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).
South Daytona, Florida, USA
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