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
Lakes by the Bay signifies an average high-temperature of a still hot 87.3°F (30.7°C) in September, closely mirroring the 88.9°F (31.6°C) of August. During the nights of September, Lakes by the Bay maintains an almost steady temperature with an average low of 80.4°F (26.9°C).Heat index
In September, the heat index is calculated to be a very hot 98.6°F (37°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.Heat index readings emphasize conditions of light breezes and shaded spots. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
In September, the average relative humidity is 72%.Rainfall
In Lakes by the Bay, during September, the rain falls for 26.5 days and regularly aggregates up to 5.71" (145mm) of precipitation. Throughout the year, there are 225.9 rainfall days, and 40.91" (1039mm) of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 17min.On the first day of September, sunrise is at 7:02 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:08 pm EDT.
Sunshine
In September, the average sunshine is 8.9h.UV index
April through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 7 in September interprets into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun 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
How hot is it in September?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
When is the highest UV index?
How high is the UV index in September?
Average temperature in September
Lakes by the Bay, FL
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is August (88.9°F).
The month with the lowest average high temperature is January (73.9°F).
- Average low temperature in September: 80.4°F
The month with the highest average low temperature is August (81.7°F).
The coldest month (with the lowest average low temperature) is January (63.1°F).
Average pressure in September
Lakes by the Bay, FL
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are September and October (29.94"Hg).
Average wind speed in September
Lakes by the Bay, FL
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is March (10.2mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in September
Lakes by the Bay, FL
- Average humidity in September: 72%
The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is March (68%).
Average rainfall in September
Lakes by the Bay, FL
- Average rainfall in September: 5.71"
The wettest month (with the highest rainfall) is August (6.77").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days in September
Lakes by the Bay, FL
- Average rainfall days in September: 26.5 days
The month with the highest number of rainy days is August (26.8 days).
The months with the least rainy days are January and February (12.5 days).
Average daylight in September /
Average sunshine in September
Lakes by the Bay, FL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in September
Lakes by the Bay, FL
- Average sunshine days in September: 2.5 days
The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is August (2.1 days).
Average UV index in September
Lakes by the Bay, FL
- Average UV index in September: 7
The months with the highest UV index are April, May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 5).
Average cloud cover in September
Lakes by the Bay, FL
- Average cloud cover in September: 30
The month with the most cloud cover is October (Cloud cover 36).
The month with the least cloud cover is April (Cloud cover 26).
Average visibility in September
Lakes by the Bay, 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).
Lakes by the Bay, Florida, USA
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