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
Boca Grande experiences an average high-temperature of a still hot 86.9°F (30.5°C) with the onset of September, subtly varied from August's 88.2°F (31.2°C). Throughout September, Boca Grande records an average temperature of 77.7°F (25.4°C) at night.Heat index
In September, the heat index is estimated at a fiery hot 100.4°F (38°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.One should consider that heat index numbers are for shaded settings and light wind. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
The average relative humidity in September is 76%.Rainfall
In Boca Grande, Florida, during September, the rain falls for 21.9 days and regularly aggregates up to 2.36" (60mm) of precipitation. In Boca Grande, during the entire year, the rain falls for 168.6 days and collects up to 20.2" (513mm) of precipitation.Daylight
In Boca Grande, the average length of the day in September is 12h and 18min.On the first day of September in Boca Grande, sunrise is at 7:08 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:16 pm EDT.
Sunshine
In September, the average sunshine in Boca Grande is 9.2h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: An average UV index of 7 in September transforms into this advice:
Take precautions against overexposure. Protection against sun damage is needed. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How many days does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Boca Grande have in September?
What is the month with the highest UV index?
What is the UV index intensity in September?
Average temperature in September
Boca Grande, FL
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is August (88.2°F).
The month with the lowest average high temperature is January (69.1°F).
- Average low temperature in September: 77.7°F
The month with the highest average low temperature is August (80.1°F).
The coldest month (with the lowest average low temperature) is January (57.4°F).
Average pressure in September
Boca Grande, FL
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).
Average wind speed in September
Boca Grande, FL
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is November (9.5mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in September
Boca Grande, FL
- Average humidity in September: 76%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are March and May (73%).
Average rainfall in September
Boca Grande, FL
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in September
Boca Grande, FL
- Average rainfall days in September: 21.9 days
The month with the highest number of rainy days is August (23.6 days).
The month with the least rainy days is January (6.6 days).
Average daylight in September /
Average sunshine in September
Boca Grande, FL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is May (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
Boca Grande, FL
- Average sunshine days in September: 5.1 days
The month with the most sunshine days is January (22 days).
The month with the least sunshine days is August (4 days).
Average UV index in September
Boca Grande, 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, February and December (UV index 5).
Average cloud cover in September
Boca Grande, FL
- Average cloud cover in September: 27
The month with the most cloud cover is January (Cloud cover 28).
The month with the least cloud cover is May (Cloud cover 22).
Average visibility in September
Boca Grande, 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).
Boca Grande, Florida, USA
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