September weather forecast
Bokeelia, FL

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Weather in September

September, the first month of the autumn in Bokeelia, is still a tropical month, with an average temperature fluctuating between 77.7°F (25.4°C) and 86.9°F (30.5°C).

Temperature

With the onset of September, Bokeelia's average high-temperature clocks in at a still tropical 86.9°F (30.5°C), showing a minor fluctuation from the previous month. Bokeelia's average low-temperature in the month of September is recorded at a moderately hot 77.7°F (25.4°C).

Heat index

In September, the heat index is appraised at a very hot 100.4°F (38°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
When assessing, remember that heat index measurements are for light winds and shaded spots. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The average relative humidity in September is 76%.

Rainfall

In Bokeelia, during September, the rain falls for 21.9 days and regularly aggregates up to 2.36" (60mm) of precipitation. Throughout the year, there are 168.6 rainfall days, and 20.2" (513mm) of precipitation is accumulated.

Ocean temperature

In Bokeelia, in September, the average water temperature is 84.9°F (29.4°C).
Note: For any water activity, temperatures between 77°F (25°C) and 84.2°F (29°C) are deemed excellent and extremely satisfying for enduring periods.

Daylight

In Bokeelia, the average length of the day in September is 12h and 18min.
On the first day of September, 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 7:15 pm EDT.

Sunshine

In Bokeelia, the average sunshine in September 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 estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 7 during September leads to these instructions:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. 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. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during September?

The high-temperature during September is 86.9°F (30.5°C) and the low-temperature is 77.7°F (25.4°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in September is appraised at 100.4°F (38°C).

What is the average humidity in September?

In Bokeelia, the average relative humidity in September is 76%.

How many days does it rain in September?

In September, the rain falls for 21.9 days. Throughout September, 2.36" (60mm) of precipitation is accumulated.

How warm is the water in September?

In Bokeelia, in September, the average water temperature is 84.9°F (29.4°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Bokeelia have in September?

In Bokeelia, the average day length in September is 12h and 18min.

What time are sunrise and sunset in September?

In September, on the first day of the month, 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 7:15 pm EDT.

How long on average sun shines in September?

In Bokeelia, the average sunshine duration in September is 9.2h.

What are the months with the highest UV index in Bokeelia?

The months with the highest UV index are May through September, with an average maximum UV index of 7.

What is the UV index intensity in September?

The average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.

Average temperature in September
Bokeelia, FL

Average temperature in September - Bokeelia, 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
Bokeelia, FL

Average pressure in September - Bokeelia, 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
Bokeelia, FL

Average wind speed in September - Bokeelia, 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
Bokeelia, FL

Average humidity in September - Bokeelia, 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
Bokeelia, FL

Average rainfall in September - Bokeelia, 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
Bokeelia, FL

Average rainfall days in September - Bokeelia, 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 sea temperature in September
Bokeelia, FL

Average sea temperature in September - Bokeelia, FL
  • Average sea temperature in September: 84.9°F

The best month for swimming (with the highest average sea temperature) is August (87°F).
The coldest month (with the lowest average sea temperature) is January (65.3°F).

Average daylight in September /
Average sunshine in September
Bokeelia, FL

Average daylight in September / Average sunshine in September - Bokeelia, 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
Bokeelia, FL

Average sunshine days in September - Bokeelia, 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
Bokeelia, FL

Average UV index in September - Bokeelia, 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
Bokeelia, FL

Average cloud cover in September - Bokeelia, 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
Bokeelia, FL

Average visibility in September - Bokeelia, 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).

Bokeelia, Florida, USA

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