September weather forecast
Saint Elmo, AL

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Weather in September

September, the first month of the autumn in Saint Elmo, is still a hot month, with an average temperature varying between 73.9°F (23.3°C) and 86.9°F (30.5°C).

Temperature

Saint Elmo greets September with an average high-temperature of a still hot 86.9°F (30.5°C), marking a slight deviation from the preceding month. September's nights in Saint Elmo, Alabama, observe an average temperature of 73.9°F (23.3°C).

Heat index

The heat index in September is calculated to be a very hot 98.6°F (37°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The average relative humidity in September in Saint Elmo is 74%.

Rainfall

In September, in Saint Elmo, Alabama, the rain falls for 17.9 days. Throughout September, 3.94" (100mm) of precipitation is accumulated. Throughout the year, there are 173.5 rainfall days, and 40.98" (1041mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall in Saint Elmo.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of September in Saint Elmo, sunrise is at 6:30 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:39 pm CDT.

Sunshine

In September, the average sunshine is 9.8h.

UV index

In Saint Elmo, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 6 in September transforms into this advice:
Inhibit overexposure. Warding off sun damage is of utmost importance. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

How hot is it in Saint Elmo in September?

The high-temperature, in September, in Saint Elmo, is 86.9°F (30.5°C), while the low-temperature averages to 73.9°F (23.3°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is calculated to be 98.6°F (37°C).

What is the average humidity in September in Saint Elmo?

In Saint Elmo, the average relative humidity in September is 74%.

How many days does it rain in September in Saint Elmo?

In Saint Elmo, Alabama, in September, it is raining for 17.9 days, with typically 3.94" (100mm) of accumulated precipitation.

When it does not snow in Saint Elmo?

In Saint Elmo, Alabama, snow does not fall in February through December.

What is the average length of the day in September in Saint Elmo?

The average day length in September is 12h and 20min.

When are sunrise and sunset in September in Saint Elmo?

In September, on the first day of the month, sunrise is at 6:30 am and sunset at 7:15 pm. On the last day of the month, in Saint Elmo, sunrise is at 6:46 am and sunset at 6:39 pm CDT.

How many hours of sunshine does Saint Elmo have in September?

In September, the average sunshine duration is 9.8h.

What is the UV index intensity in September in Saint Elmo?

In September, the average daily maximum UV index in Saint Elmo is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
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
Saint Elmo, AL

Average temperature in September - Saint Elmo, AL
  • Average high temperature in September: 86.9°F

The warmest month (with the highest average high temperature) is August (90.3°F).
The month with the lowest average high temperature is January (59.2°F).

  • Average low temperature in September: 73.9°F

The month with the highest average low temperature is August (77.4°F).
The coldest month (with the lowest average low temperature) is January (45.5°F).

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Average pressure in September
Saint Elmo, AL

Average pressure in September - Saint Elmo, AL
  • Average pressure in September: 29.98"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
Saint Elmo, AL

Average wind speed in September - Saint Elmo, AL
  • Average wind speed in September: 6.2mph

The windiest months (with the highest average wind speed) are January and April (8.1mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).

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Average humidity in September
Saint Elmo, AL

Average humidity in September - Saint Elmo, 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
Saint Elmo, AL

Average rainfall in September - Saint Elmo, AL
  • Average rainfall in September: 3.94"

The wettest month (with the highest rainfall) is August (6.1").
The driest month (with the least rainfall) is November (2.01").

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Average rainfall days in September
Saint Elmo, AL

Average rainfall days in September - Saint Elmo, AL
  • Average rainfall days in September: 17.9 days

The month with the highest number of rainy days is July (24.1 days).
The month with the least rainy days is November (8.1 days).

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Average snowfall in September
Saint Elmo, AL

Average snowfall in September - Saint Elmo, AL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Saint Elmo, AL

Average snowfall days in September - Saint Elmo, AL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in September /
Average sunshine in September
Saint Elmo, AL

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

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

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in September
Saint Elmo, AL

Average sunshine days in September - Saint Elmo, AL
  • Average sunshine days in September: 10.5 days

The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is July (5.1 days).

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Average UV index in September
Saint Elmo, AL

Average UV index in September - Saint Elmo, AL
  • Average UV index in September: 6

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

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Average cloud cover in September
Saint Elmo, AL

Average cloud cover in September - Saint Elmo, AL
  • Average cloud cover in September: 25

The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 23).

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Average visibility in September
Saint Elmo, AL

Average visibility in September - Saint Elmo, 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).

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Saint Elmo, Alabama, USA

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