September weather forecastConch Key, FL
September
Weather in September
September, the first month of the autumn in Conch Key, is also a moderately hot month, with an average temperature fluctuating between 84.6°F (29.2°C) and 82°F (27.8°C).Temperature
The transition into September shows a subtle variation to a still moderately hot 84.6°F (29.2°C) from August's 85.5°F (29.7°C) in the average high-temperature. A consistent average low-temperature of 82°F (27.8°C), with a minor variance from the daytime highs, is noted during the nights of September.Heat index
The heat index value for September is appraised at a tropical 93.2°F (34°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.Bear in mind that the heat index values are determined for shaded areas and light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to 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.
Humidity
In Conch Key, the average relative humidity in September is 74%.Rainfall
September is the month with the most rainfall. Rain falls for 23 days and accumulates 4.21" (107mm) of precipitation.Daylight
In Conch Key, the average length of the day in September is 12h and 17min.On the first day of September in Conch Key, sunrise is at 7:04 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:11 pm EDT.
Sunshine
The average sunshine in September is 9h.UV index
The months with the highest UV index are April through October, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 7 in September, converts into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Conch Key, FL
- Average high temperature in September: 84.6°F
The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is January (72.9°F).
- Average low temperature in September: 82°F
The month with the highest average low temperature is August (82.9°F).
The coldest month (with the lowest average low temperature) is January (67.5°F).
Average pressure in September
Conch Key, 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
Conch Key, FL
- Average wind speed in September: 9.8mph
The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is July (9mph).
Average humidity in September
Conch Key, FL
- Average humidity in September: 74%
The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is March (73%).
Average rainfall in September
Conch Key, FL
- Average rainfall in September: 4.21"
The wettest month (with the highest rainfall) is September (4.21").
The driest month (with the least rainfall) is March (0.43").
Average rainfall days in September
Conch Key, FL
- Average rainfall days in September: 23 days
The month with the highest number of rainy days is September (23 days).
The month with the least rainy days is February (10.3 days).
Average daylight in September /
Average sunshine in September
Conch Key, FL
- Average daylight in September: 12h and 18min
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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in September
Conch Key, FL
- Average sunshine days in September: 4.6 days
The month with the most sunshine days is March (18 days).
The month with the least sunshine days is September (4.6 days).
Average UV index in September
Conch Key, FL
- Average UV index in September: 7
The months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The month with the lowest UV index is January (UV index 5).
Average cloud cover in September
Conch Key, FL
- Average cloud cover in September: 28
The months with the most cloud cover are January and October (Cloud cover 32).
The month with the least cloud cover is April (Cloud cover 23).
Average visibility in September
Conch Key, 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).
