September weather forecastChain O'Lakes, FL
September
Weather in September
The first month of the autumn, September, is still a hot month in Chain O'Lakes, Florida, with an average temperature fluctuating between 88.3°F (31.3°C) and 73.4°F (23°C).Temperature
As Chain O'Lakes steps into September, the average high-temperature holds at a still tropical 88.3°F (31.3°C), hinting at a minor fluctuation from the prior month. Chain O'Lakes observes an average nighttime low-temperature of 73.4°F (23°C) during the month of September.Heat index
Throughout September, the heat index is estimated at an extremely hot 105.8°F (41°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.The standards for the heat index are set for locations in shade and under light breezes. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.
Humidity
August and September, with an average relative humidity of 78%, are the most humid months.Rainfall
In September, in Chain O'Lakes, Florida, the rain falls for 23.9 days. Throughout September, 5.63" (143mm) of precipitation is accumulated. In Chain O'Lakes, Florida, during the entire year, the rain falls for 203.3 days and collects up to 39.06" (992mm) of precipitation.Snowfall
In Chain O'Lakes, snow does not fall in February through December.Daylight
The average length of the day in September is 12h and 19min.On the first day of September in Chain O'Lakes, sunrise is at 7:04 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:12 pm EDT.
Sunshine
In Chain O'Lakes, the average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index in Chain O'Lakes, Florida, is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 6 in September leads to these recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chain O'Lakes, FL
- Average high temperature in September: 88.3°F
The warmest month (with the highest average high temperature) is August (91.2°F).
The month with the lowest average high temperature is January (66.9°F).
- Average low temperature in September: 73.4°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 (48.7°F).
Average pressure in September
Chain O'Lakes, FL
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in September
Chain O'Lakes, FL
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is July (4.2mph).
Average humidity in September
Chain O'Lakes, FL
- Average humidity in September: 78%
The months with the highest relative humidity are August and September (78%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Chain O'Lakes, FL
- Average rainfall in September: 5.63"
The wettest month (with the highest rainfall) is July (6.57").
The driest month (with the least rainfall) is November (1.18").
Average rainfall days in September
Chain O'Lakes, FL
- Average rainfall days in September: 23.9 days
The month with the highest number of rainy days is August (28.2 days).
The month with the least rainy days is November (9.9 days).
Average snowfall days in September
Chain O'Lakes, FL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Chain O'Lakes, 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 24min
The month with the most sunshine is May (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in September
Chain O'Lakes, FL
- Average sunshine days in September: 4.2 days
The month with the most sunshine days is January (18.1 days).
The month with the least sunshine days is August (1.3 days).
Average UV index in September
Chain O'Lakes, 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 4).
Average cloud cover in September
Chain O'Lakes, FL
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 38).
The month with the least cloud cover is May (Cloud cover 30).
Average visibility in September
Chain O'Lakes, FL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).





