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 tropical 87.1°F (30.6°C), subtly contrasting with August's 88.3°F (31.3°C). Carnestown sees a gentle drop from the daily peak temperature in September, with an average low settling at a warm 78.4°F (25.8°C).Heat index
The heat index in September is computed to be a torrid 100.4°F (38°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.Keep in mind the heat index values are meant for areas in shade and with light wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', quantifies the warmth felt when relative humidity is considered. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance 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.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
In September, the average relative humidity is 75%.Rainfall
In Carnestown, during September, the rain falls for 21.5 days and regularly aggregates up to 2.4" (61mm) of precipitation. Throughout the year, there are 162.1 rainfall days, and 21.69" (551mm) of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 18min.On the first day of the month, sunrise is at 7:05 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:17 am and sunset at 7:12 pm EDT.
Sunshine
In September, the average sunshine is 9.2h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes 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 converts into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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 many days does it rain in September?
How many hours of daylight does Carnestown have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Carnestown have in September?
What is the month with the highest UV index?
What is the UV index reading in September?
Average temperature in September
Carnestown, FL
- Average high temperature in September: 87.1°F
The warmest month (with the highest average high temperature) is August (88.3°F).
The month with the lowest average high temperature is January (71.6°F).
- Average low temperature in September: 78.4°F
The month with the highest average low temperature is August (80.2°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).
Average pressure in September
Carnestown, FL
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is September (29.94"Hg).
Average wind speed in September
Carnestown, FL
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is November (9.2mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in September
Carnestown, FL
- Average humidity in September: 75%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is March (72%).
Average rainfall in September
Carnestown, FL
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is March (0.63").
Average rainfall days in September
Carnestown, FL
- Average rainfall days in September: 21.5 days
The month with the highest number of rainy days is August (22.4 days).
The month with the least rainy days is February (7 days).
Average daylight in September /
Average sunshine in September
Carnestown, 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: 9h and 1min
The months with the most sunshine are May and July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
Carnestown, FL
- Average sunshine days in September: 7.1 days
The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is August (6.8 days).
Average UV index in September
Carnestown, 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 months with the lowest UV index are January and February (UV index 5).
Average cloud cover in September
Carnestown, FL
- Average cloud cover in September: 27
The month with the most cloud cover is January (Cloud cover 28).
The months with the least cloud cover are March and April (Cloud cover 22).
Average visibility in September
Carnestown, 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).
Carnestown, Florida, USA
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