September weather forecast and climate
Octagon, AL

Weather in September

September, the first month of the autumn, in Octagon, is still a tropical month, with average temperature fluctuating between 67.1°F (19.5°C) and 88°F (31.1°C).

Temperature

In September, the average high-temperature is relatively the same as in August - a still hot 88°F (31.1°C). In Octagon, the average low-temperature is 67.1°F (19.5°C).

Heat index

In September, the average heat index is evaluated at a very hot 101.3°F (38.5°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. 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', 'feels like', 'real feel', or 'felt air temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like activity, metabolic differences, clothing, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. 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. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

The average relative humidity in Octagon, Alabama, is 72%.

Rainfall

September is the month with the least rainfall. Rain falls for 13.3 days and accumulates 2.01" (51mm) of precipitation.

Snowfall

March through November are months without snowfall in Octagon, Alabama.

Daylight

In September, the average length of the day is 12.3h.

Sunshine

In Octagon, the average sunshine in September is 9.3h.

UV index

In September, the average daily maximum UV index in Octagon is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 6 in September interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Octagon?

In Octagon, Alabama, in September, the average high-temperature is 88°F (31.1°C), and the average low-temperature is 67.1°F (19.5°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), that takes the relative humidity and factores it into the air temperature reading, is evaluated at 101.3°F (38.5°C).

What is the average humidity in September in Octagon?

The average relative humidity in September is 72%.

How many days does it rain in September in Octagon?

In Octagon, Alabama, during September, the rain falls for 13.3 days and regularly aggregates up to 2.01" (51mm) of precipitation.

What is the driest month in Octagon?

The month with the least rainfall in Octagon is September when the rain falls for 13.3 days and typically collects 2.01" (51mm) of precipitation.

When it does not snow in Octagon?

In Octagon, Alabama, snow does not fall in March through November.

How many hours of daylight does Octagon have in September?

The average length of the day in September is 12.3h.

How long on average sun shines in September in Octagon?

The average sunshine in September in Octagon, Alabama, is 9.3h.

How high is the UV index in September in Octagon?

In September, the average daily maximum UV index in Octagon is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV radiation.

Average temperature in September
Octagon, AL

Average temperature in September - Octagon, AL
  • Average high temperature in September: 88°F

The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (55°F).

  • Average low temperature in September: 67.1°F

The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).

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Average pressure in September
Octagon, AL

Average pressure in September - Octagon, AL
  • Average pressure in September: 29.99"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.96").

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Average wind speed in September
Octagon, AL

Average wind speed in September - Octagon, AL
  • Average wind speed in September: 5mph

The windiest months (with the highest average wind speed) are January, February, March and April (7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity in September
Octagon, AL

Average humidity in September - Octagon, AL
  • Average humidity in September: 72%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in September
Octagon, AL

Average rainfall in September - Octagon, AL
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is December (3.5").
The driest month (with the least rainfall) is September (2.01").

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Average rainfall days in September
Octagon, AL

Average rainfall days in September - Octagon, AL
  • Average rainfall days in September: 13.3 days

The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (8.3 days).

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Average snowfall in September
Octagon, AL

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

Months with the highest snowfall are January and December (0.35").
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
Octagon, AL

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

The month with the highest number of snowfall days is January (0.8 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Octagon, AL
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 14.2h).
The month with the shortest days is December (Average daylight: 10.1h).

  • Average sunshine in September: 9.3h

The month with the most sunshine is June (Average sunshine: 10.6h).
The month with the least sunshine is December (Average sunshine: 4.9h).

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Average sunshine days in September
Octagon, AL

Average sunshine days in September - Octagon, AL
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is July (8.3 days).

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Average UV index in September
Octagon, AL

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

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

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Average cloud cover in September
Octagon, AL

Average cloud cover in September - Octagon, AL
  • Average cloud cover in September: 29

Months with the most cloud cover are February and December (Cloud cover 47).
Months with the least cloud cover are September and October (Cloud cover 29).

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Average visibility in September
Octagon, AL

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

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

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