September weather forecast
Octagon, AL

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Weather in September

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

Temperature

The transition into September marks the average high-temperature at a still tropical 88°F (31.1°C), differing minimally from August's 92.3°F (33.5°C). Octagon reports an average low-temperature of 67.1°F (19.5°C) during the nights of September.

Heat index

During September, the heat index is estimated at a sweltering 100.4°F (38°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In September, the average relative humidity is 72%.

Rainfall

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

Snowfall

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

Daylight

In September, the average length of the day is 12h and 21min.
On the first day of September in Octagon, sunrise is at 6:26 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:36 pm CDT.

Sunshine

The average sunshine in September is 9.3h.

UV index

In Octagon, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 6 in September leads to these recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. To cut down UV radiation exposure by about half, sport a wide-brim hat.

Frequently asked questions

How hot is it in September?

September temperatures vary between a high-temperature of 88°F (31.1°C) and a low-temperature of 67.1°F (19.5°C). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is estimated at 100.4°F (38°C).

What is the average humidity in September?

In September, the average relative humidity is 72%.

What is the driest month in Octagon?

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

How much does it rain in September?

In Octagon, in September, during 13.3 rainfall days, 2.01" (51mm) of precipitation is typically accumulated.

When it does not snow?

March through November are months without snowfall.

How many hours of daylight does Octagon have in September?

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

When are sunrise and sunset in September in Octagon?

In September, on the first day of the month, sunrise is at 6:26 am and sunset at 7:14 pm. On the last day of the month, in Octagon, sunrise is at 6:44 am and sunset at 6:36 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.3h.

How high is the UV index in September?

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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).

Average pressure in September
Octagon, AL

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

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

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).

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%).

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").

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).

Average snowfall in September
Octagon, AL

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

The months with the highest snowfall are January and December (0.35").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Octagon, AL
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

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).

Average UV index in September
Octagon, AL

Average UV index in September - Octagon, 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).

Average cloud cover in September
Octagon, AL

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

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

Average visibility in September
Octagon, AL

Average visibility in September - Octagon, AL
  • 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).

Octagon, Alabama, USA

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