September weather forecastHorseshoe Beach, FL
September
Weather in September
September, the first month of the autumn in Horseshoe Beach, is still a tropical month, with an average temperature fluctuating between 73°F (22.8°C) and 87.1°F (30.6°C).Temperature
The transition into September marks the average high-temperature at a still hot 87.1°F (30.6°C), differing minimally from August's 89.8°F (32.1°C). Horseshoe Beach anticipates an average minimum temperature of 73°F (22.8°C) in the month of September.Heat index
For most parts of September, the heat index is estimated at a torrid 102.2°F (39°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.One should consider that heat index numbers are for shaded settings and light wind. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
The most humid month is September, with an average relative humidity of 77%.Rainfall
In Horseshoe Beach, in September, during 17 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. In Horseshoe Beach, during the entire year, the rain falls for 144.9 days and collects up to 16.14" (410mm) of precipitation.Snowfall
January through November are months without snowfall.Daylight
In Horseshoe Beach, the average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 7:10 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:19 pm EDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
In Horseshoe Beach, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: An average UV index of 6 in September transforms into this advice:
Fend off overexposure. Sun protection is vital. 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. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Horseshoe Beach, FL
- Average high temperature in September: 87.1°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (63.1°F).
- Average low temperature in September: 73°F
The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (47.7°F).
Average pressure in September
Horseshoe Beach, FL
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in September
Horseshoe Beach, FL
- Average wind speed in September: 5.7mph
The windiest months (with the highest average wind speed) are January and March (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in September
Horseshoe Beach, FL
- Average humidity in September: 77%
The month with the highest relative humidity is September (77%).
The months with the lowest relative humidity are January and March (72%).
Average rainfall in September
Horseshoe Beach, FL
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is August (2.64").
The driest month (with the least rainfall) is March (0.63").
Average rainfall days in September
Horseshoe Beach, FL
- Average rainfall days in September: 17 days
The month with the highest number of rainy days is August (23.3 days).
The month with the least rainy days is November (6.1 days).
Average snowfall days in September
Horseshoe Beach, FL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Horseshoe 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 48min
The months with the most sunshine are May and July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in September
Horseshoe Beach, FL
- Average sunshine days in September: 9.1 days
The month with the most sunshine days is January (22.1 days).
The month with the least sunshine days is August (4.3 days).
Average UV index in September
Horseshoe 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 months with the lowest UV index are January, February and December (UV index 4).
Average cloud cover in September
Horseshoe Beach, FL
- Average cloud cover in September: 29
The month with the most cloud cover is December (Cloud cover 35).
The month with the least cloud cover is May (Cloud cover 24).
Average visibility in September
Horseshoe 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).
