September weather forecastWinter Beach, FL
September
Weather in September
September, the first month of the autumn in Winter Beach, is still a warm month, with an average temperature fluctuating between 77.4°F (25.2°C) and 85.5°F (29.7°C).Temperature
Winter Beach marks the start of September with an average high-temperature of a warm 85.5°F (29.7°C), hinting at a slight fluctuation from August's 87.4°F (30.8°C). Winter Beach encounters an average temperature dip to 77.4°F (25.2°C) throughout September, subtly lower than its daytime maximum.Heat index
Throughout September, the heat index is appraised at a sweltering 96.8°F (36°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.For clarity, heat index numbers account for light winds and areas under shade. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
In Winter Beach, the average relative humidity in September is 78%.Rainfall
In Winter Beach, during September, the rain falls for 19.6 days and regularly aggregates up to 1.26" (32mm) of precipitation. In Winter Beach, during the entire year, the rain falls for 153.2 days and collects up to 13.15" (334mm) of precipitation.Daylight
The average length of the day in September is 12h and 19min.On the first day of the month, sunrise is at 7:00 am and sunset at 7:42 pm. On the last day of September, sunrise is at 7:14 am and sunset at 7:08 pm EDT.
Sunshine
In September, the average sunshine in Winter Beach is 9h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 7 during September leads to these advisories:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Winter Beach, FL
- Average high temperature in September: 85.5°F
The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is January (70.2°F).
- Average low temperature in September: 77.4°F
The month with the highest average low temperature is August (78.6°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).
Average pressure in September
Winter Beach, FL
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in September
Winter Beach, FL
- Average wind speed in September: 7.8mph
The windiest months (with the highest average wind speed) are January and November (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in September
Winter Beach, FL
- Average humidity in September: 78%
The months with the highest relative humidity are June, July and August (79%).
The month with the lowest relative humidity is March (72%).
Average rainfall in September
Winter Beach, FL
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is August (2.48").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days in September
Winter Beach, FL
- Average rainfall days in September: 19.6 days
The month with the highest number of rainy days is August (20.2 days).
The month with the least rainy days is February (7.7 days).
Average daylight in September /
Average sunshine in September
Winter Beach, FL
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days in September
Winter Beach, FL
- Average sunshine days in September: 6.3 days
The month with the most sunshine days is March (19.5 days).
The month with the least sunshine days is August (5.1 days).
Average UV index in September
Winter Beach, 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
Winter Beach, FL
- Average cloud cover in September: 30
The month with the most cloud cover is November (Cloud cover 36).
The months with the least cloud cover are May and August (Cloud cover 27).
Average visibility in September
Winter 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).





