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
The average high-temperature during September registers at a still hot 87.4°F (30.8°C), closely corresponding to the preceding month. The average temperature drops to a moderately hot 74.7°F (23.7°C) during the night in the month of September.Heat index
The heat index value during September is evaluated at an extremely hot 105.8°F (41°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.Heat index guidelines indicate values are for light wind scenarios and shaded regions. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is achieved by amalgamating air temperature with the relative humidity readings. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
September is the most humid month, with an average relative humidity of 81%.Rainfall
In Whidden Corner, in September, during 19.9 rainfall days, 1.54" (39mm) of precipitation is typically accumulated. Throughout the year, there are 166.9 rainfall days, and 16.06" (408mm) of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 18min.On the first day of the month, sunrise is at 7:04 am and sunset at 7:44 pm. On the last day of September, in Whidden Corner, Florida, sunrise is at 7:16 am and sunset at 7:11 pm EDT.
Sunshine
In September, the average sunshine in Whidden Corner is 8.8h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 7 during September translates into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the most humid month?
What is the average humidity in September?
How many days does it rain in September?
How many hours of daylight does Whidden Corner have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Whidden Corner have in September?
What are the months with the highest UV index?
What is the UV index intensity in September?
Average temperature in September
Whidden Corner, FL
- Average high temperature in September: 87.4°F
The warmest month (with the highest average high temperature) is August (89.6°F).
The month with the lowest average high temperature is January (72.3°F).
- Average low temperature in September: 74.7°F
The month with the highest average low temperature is August (76.5°F).
The coldest month (with the lowest average low temperature) is January (56.1°F).
Average pressure in September
Whidden Corner, FL
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).
Average wind speed in September
Whidden Corner, FL
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is March (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in September
Whidden Corner, FL
- Average humidity in September: 81%
The month with the highest relative humidity is September (81%).
The month with the lowest relative humidity is March (70%).
Average rainfall in September
Whidden Corner, FL
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is August (3.19").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in September
Whidden Corner, FL
- Average rainfall days in September: 19.9 days
The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is January (6.8 days).
Average daylight in September /
Average sunshine in September
Whidden Corner, FL
- Average daylight in September: 12h and 2min
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: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).
Average sunshine days in September
Whidden Corner, FL
- Average sunshine days in September: 5.6 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is August (4.3 days).
Average UV index in September
Whidden Corner, 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 months with the lowest UV index are January, February and December (UV index 5).
Average cloud cover in September
Whidden Corner, FL
- Average cloud cover in September: 33
The months with the most cloud cover are January, November and December (Cloud cover 34).
The months with the least cloud cover are March, April and May (Cloud cover 29).
Average visibility in September
Whidden Corner, 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).
Whidden Corner, Florida, USA
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