September weather forecast
Bradenton, FL

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Beautiful clear water and white sand of the busy Coquina Beach in Brandenton, Florida
Beautiful clear water and white sand of the busy Coquina Beach in Brandenton, Florida

Weather in September

September, the first month of the autumn in Bradenton, is still a tropical month, with an average temperature ranging between min 77.4°F (25.2°C) and max 86.9°F (30.5°C).

Temperature

Bradenton signifies an average high-temperature of a still tropical 86.9°F (30.5°C) in September, closely mirroring the 88.5°F (31.4°C) of August. In the month of September, Bradenton experiences an average low-temperature of 77.4°F (25.2°C).

Heat index

September's mean heat index is calculated to be a very hot 100.4°F (38°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The average relative humidity in September in Bradenton is 75%.

Rainfall

In Bradenton, during September, the rain falls for 23.5 days and regularly aggregates up to 4.61" (117mm) of precipitation. Throughout the year, in Bradenton, there are 183.1 rainfall days, and 34.92" (887mm) of precipitation is accumulated.

Ocean temperature

In Bradenton, in September, the average water temperature is 84.7°F (29.3°C).
Note: Engaging in water activities, such as swimming or diving, in temperatures from 77°F (25°C) to 84.2°F (29°C) is very pleasurable for extended periods, without any discomfort.

Daylight

In September, the average length of the day in Bradenton is 12h and 19min.
On the first day of the month, sunrise is at 7:09 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:17 pm EDT.

Sunshine

The average sunshine in September in Bradenton, Florida, is 9h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Bradenton. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, an average UV index of 7 transforms into the following instructions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Watch out! Sand and water enhance the UV exposure you receive.
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Frequently asked questions

How hot is it in Bradenton in September?

Bradenton in September has an average high-temperature of 86.9°F (30.5°C) and an average low-temperature of 77.4°F (25.2°C). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 100.4°F (38°C).

What is the average humidity in September in Bradenton?

The average relative humidity in September in Bradenton, Florida, is 75%.

How much does it rain in Bradenton in September?

In September, in Bradenton, the rain falls for 23.5 days. Throughout September, 4.61" (117mm) of precipitation is accumulated.

What is the water temperature in September in Bradenton?

In Bradenton, Florida, in September, the average water temperature is 84.7°F (29.3°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in September in Bradenton?

In Bradenton, Florida, the average day length in September is 12h and 19min.

What time are sunrise and sunset in September in Bradenton?

On the first day of September in Bradenton, sunrise is at 7:09 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:17 pm EDT.

How long on average sun shines in September in Bradenton?

The average sunshine duration in September in Bradenton is 9h.

What is the month with the highest UV index in Bradenton?

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

How high is the UV index in September in Bradenton?

In September, the average daily maximum UV index in Bradenton, Florida, is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.

Average temperature in September
Bradenton, FL

Average temperature in September - Bradenton, FL
  • Average high temperature in September: 86.9°F

The warmest month (with the highest average high temperature) is August (88.5°F).
The month with the lowest average high temperature is January (68.5°F).

  • Average low temperature in September: 77.4°F

The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (56.1°F).

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Average pressure in September
Bradenton, FL

Average pressure in September - Bradenton, FL
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).

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Average wind speed in September
Bradenton, FL

Average wind speed in September - Bradenton, FL
  • Average wind speed in September: 7.2mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).

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Average humidity in September
Bradenton, FL

Average humidity in September - Bradenton, FL
  • Average humidity in September: 75%

The month with the highest relative humidity is December (76%).
The months with the lowest relative humidity are March, April and May (72%).

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Average rainfall in September
Bradenton, FL

Average rainfall in September - Bradenton, FL
  • Average rainfall in September: 4.61"

The wettest month (with the highest rainfall) is August (6.42").
The driest months (with the least rainfall) are February and November (1.06").

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Average rainfall days in September
Bradenton, FL

Average rainfall days in September - Bradenton, FL
  • Average rainfall days in September: 23.5 days

The month with the highest number of rainy days is August (26.8 days).
The months with the least rainy days are January, February and November (8.3 days).

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Average sea temperature in September
Bradenton, FL

Average sea temperature in September - Bradenton, FL
  • Average sea temperature in September: 84.8°F

The best month for swimming (with the highest average sea temperature) is August (86.7°F).
The coldest month (with the lowest average sea temperature) is January (64.1°F).

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

Average daylight in September / Average sunshine in September - Bradenton, FL
  • Average daylight in September: 12h and 2min

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: 9h and 0min

The month with the most sunshine is May (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

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Average sunshine days in September
Bradenton, FL

Average sunshine days in September - Bradenton, FL
  • Average sunshine days in September: 4.5 days

The month with the most sunshine days is January (21.1 days).
The month with the least sunshine days is August (2.5 days).

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Average UV index in September
Bradenton, FL

Average UV index in September - Bradenton, 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).

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Average cloud cover in September
Bradenton, FL

Average cloud cover in September - Bradenton, FL
  • Average cloud cover in September: 28

The months with the most cloud cover are January and December (Cloud cover 30).
The month with the least cloud cover is May (Cloud cover 22).

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Average visibility in September
Bradenton, FL

Average visibility in September - Bradenton, 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).

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Bradenton, Florida, USA

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