September weather forecastOld Duette, FL
September
Weather in September
September, the first month of the autumn in Old Duette, is also a hot month, with an average temperature varying between 73.8°F (23.2°C) and 88°F (31.1°C).Temperature
In September, Old Duette experiences a minor shift in meteorological conditions with average high-temperatures marked at a still tropical 88°F (31.1°C), closely mirroring the climate in August. In September, Old Duette records an average nighttime temperature of 73.8°F (23.2°C).Heat index
The heat index value during September is estimated at a blisteringly hot 107.6°F (42°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
September is the most humid month, with an average relative humidity of 81%.Rainfall
In September, the rain falls for 21 days. Throughout September, 2.32" (59mm) of precipitation is accumulated. Throughout the year, there are 175.4 rainfall days, and 22.8" (579mm) of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 19min.On the first day of September, sunrise is at 7:07 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:15 pm EDT.
Sunshine
The average sunshine in September is 8.8h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.Note: The UV index of 7 during September leads to these advisories:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Old Duette, FL
- Average high temperature in September: 88°F
The warmest month (with the highest average high temperature) is August (89.8°F).
The month with the lowest average high temperature is January (70.3°F).
- Average low temperature in September: 73.8°F
The month with the highest average low temperature is August (75.6°F).
The coldest month (with the lowest average low temperature) is January (52.3°F).
Average pressure in September
Old Duette, FL
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in September
Old Duette, FL
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are January and March (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in September
Old Duette, FL
- Average humidity in September: 81%
The month with the highest relative humidity is September (81%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Old Duette, FL
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is February (0.59").
Average rainfall days in September
Old Duette, FL
- Average rainfall days in September: 21 days
The month with the highest number of rainy days is August (24.8 days).
The months with the least rainy days are January and February (7.8 days).
Average daylight in September /
Average sunshine in September
Old Duette, FL
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).
Average sunshine days in September
Old Duette, FL
- Average sunshine days in September: 6.4 days
The month with the most sunshine days is January (21 days).
The months with the least sunshine days are June and August (4.8 days).
Average UV index in September
Old Duette, FL
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in September
Old Duette, FL
- Average cloud cover in September: 34
The months with the most cloud cover are January, February, September and December (Cloud cover 34).
The month with the least cloud cover is May (Cloud cover 29).
Average visibility in September
Old Duette, FL
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (6mi).
The month with the lowest visibility is September (5mi).
