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 dawn of September sees an average high-temperature of a still hot 87.4°F (30.8°C), subtly contrasting with August's 90.3°F (32.4°C). Keaton Beach records an average temperature drop to an agreeable 71.8°F (22.1°C) in September.Heat index
September's mean heat index is evaluated at a sweltering 102.2°F (39°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.For clarity, heat index numbers account for light winds and areas under shade. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
The months with the highest humidity in Keaton Beach are August, September and December, with an average relative humidity of 77%.Rainfall
In Keaton Beach, Florida, in September, it is raining for 18.3 days, with typically 3.27" (83mm) of accumulated precipitation. In Keaton Beach, during the entire year, the rain falls for 168.6 days and collects up to 32.95" (837mm) of precipitation.Daylight
In September, the average length of the day is 12h and 20min.On the first day of September in Keaton Beach, sunrise is at 7:11 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 7:20 pm EDT.
Sunshine
The average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index in Keaton Beach is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What are the most humid months?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Keaton Beach, FL
- Average high temperature in September: 87.4°F
The warmest months (with the highest average high temperature) are July and August (90.3°F).
The month with the lowest average high temperature is January (62.2°F).
- Average low temperature in September: 71.8°F
The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (45.5°F).
Average pressure in September
Keaton Beach, FL
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in September
Keaton Beach, FL
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is January (7.2mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Keaton Beach, FL
- Average humidity in September: 77%
The months with the highest relative humidity are August, September and December (77%).
The months with the lowest relative humidity are January and May (72%).
Average rainfall in September
Keaton Beach, FL
- Average rainfall in September: 3.27"
The wettest month (with the highest rainfall) is August (5.35").
The driest month (with the least rainfall) is November (1.02").
Average rainfall days in September
Keaton Beach, FL
- Average rainfall days in September: 18.3 days
The month with the highest number of rainy days is August (24.8 days).
The month with the least rainy days is November (6.8 days).
Average daylight in September /
Average sunshine in September
Keaton Beach, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in September
Keaton Beach, FL
- Average sunshine days in September: 9.5 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is August (3.8 days).
Average UV index in September
Keaton 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 3).
Average cloud cover in September
Keaton Beach, FL
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 38).
The month with the least cloud cover is May (Cloud cover 24).
Average visibility in September
Keaton 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).
Keaton Beach, Florida, USA
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