September weather forecast
Brantley, AL

Weather in September

The first month of the autumn, September, is also a hot month in Brantley, Alabama, with an average temperature varying between 68°F (20°C) and 87.1°F (30.6°C).

Temperature

In Brantley, the average high-temperature in September is relatively the same as in August - a still tropical 87.1°F (30.6°C). In Brantley, the average low-temperature is 68°F (20°C).

Heat index

The average heat index in September is appraised at a very hot 99.9°F (37.7°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'feels like', or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, clothing, metabolic differences). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in September is 74%.

Rainfall

In Brantley, in September, it is raining for 16.5 days, with typically 2.48" (63mm) of accumulated precipitation. In Brantley, during the entire year, the rain falls for 175.6 days and collects up to 35.87" (911mm) of precipitation.

Snowfall

In Brantley, snow does not fall in March through November.

Daylight

In Brantley, the average length of the day in September is 12h and 21min.
On the first day of September in Brantley, sunrise is at 6:20 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 6:31 pm CDT.

Sunshine

In September, the average sunshine is 8.9h.

UV index

In Brantley, Alabama, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 6 in September transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Brantley?

The average high-temperature, in September, is 87.1°F (30.6°C), while the average low-temperature is 68°F (20°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is appraised at 99.9°F (37.7°C).

What is the average humidity in September in Brantley?

In September, the average relative humidity in Brantley, Alabama, is 74%.

How much does it rain in Brantley in September?

In Brantley, Alabama, in September, it is raining for 16.5 days, with typically 2.48" (63mm) of accumulated precipitation.

When it does not snow in Brantley?

March through November are months without snowfall in Brantley.

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

In Brantley, Alabama, the average day length in September is 12h and 21min.

What time are sunrise and sunset in September in Brantley?

In September, on the first day of the month, sunrise is at 6:20 am and sunset at 7:09 pm. On the last day of the month, in Brantley, sunrise is at 6:38 am and sunset at 6:31 pm CDT.

How many hours of sunshine does Brantley have in September?

In September, the average sunshine duration is 8.9h.

How high is the UV index in September in Brantley?

The average daily maximum UV index in September in Brantley, Alabama, is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Brantley, AL

Average temperature in September - Brantley, AL
  • Average high temperature in September: 87.1°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (56.7°F).

  • Average low temperature in September: 68°F

The month with the highest average low temperature is August (72.3°F).
The coldest month (with the lowest average low temperature) is January (39.4°F).

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Average pressure in September
Brantley, AL

Average pressure in September - Brantley, AL
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).

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Average wind speed in September
Brantley, AL

Average wind speed in September - Brantley, AL
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in September
Brantley, AL

Average humidity in September - Brantley, AL
  • Average humidity in September: 74%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in September
Brantley, AL

Average rainfall in September - Brantley, AL
  • Average rainfall in September: 2.48"

The wettest month (with the highest rainfall) is August (4.37").
The driest month (with the least rainfall) is November (2.09").

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Average rainfall days in September
Brantley, AL

Average rainfall days in September - Brantley, AL
  • Average rainfall days in September: 16.5 days

The month with the highest number of rainy days is July (23.4 days).
The month with the least rainy days is November (7.5 days).

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Average snowfall in September
Brantley, AL

Average snowfall in September - Brantley, AL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Brantley, AL

Average snowfall days in September - Brantley, AL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight in September /
Average sunshine in September
Brantley, AL

Average daylight in September / Average sunshine in September - Brantley, AL
  • Average daylight in September: 12h and 21min

The month with the longest days is June (Average daylight: 14h and 11min).
The month with the shortest days is December (Average daylight: 10h and 8min).

  • Average sunshine in September: 8h and 54min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

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Average sunshine days in September
Brantley, AL

Average sunshine days in September - Brantley, AL
  • Average sunshine days in September: 12.3 days

The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is July (5.4 days).

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Average UV index in September
Brantley, AL

Average UV index in September - Brantley, AL
  • Average UV index in September: 6

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

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Average cloud cover in September
Brantley, AL

Average cloud cover in September - Brantley, AL
  • Average cloud cover in September: 30

The months with the most cloud cover are February and December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 28).

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Average visibility in September
Brantley, AL

Average visibility in September - Brantley, AL
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).

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