September weather forecast
Roberta, AL

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Weather in September

September, the first month of the autumn in Roberta, is also a moderately hot month, with an average temperature fluctuating between 65.7°F (18.7°C) and 85.5°F (29.7°C).

Temperature

In September, Roberta experiences a minor shift in meteorological conditions with average high-temperatures marked at a moderately hot 85.5°F (29.7°C), closely mirroring the climate in August. During September, the temperature is averaged to a low of 65.7°F (18.7°C) at night.

Heat index

For September, the heat index is computed to be a torrid 95°F (35°C). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

The average relative humidity in September is 73%.

Rainfall

September and October are months with the least rain when the rain falls for 11.9 days and typically aggregates up to 1.26" (32mm) of rain.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of the month, sunrise is at 6:22 am and sunset at 7:11 pm. On the last day of September, in Roberta, sunrise is at 6:41 am and sunset at 6:32 pm CDT.

Sunshine

The average sunshine in September in Roberta is 9h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
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Frequently asked questions

How hot does it get in Roberta in September?

In September, the average high-temperature and low-temperature in Roberta are 85.5°F (29.7°C) and 65.7°F (18.7°C) respectively. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in September is computed to be 95°F (35°C).

What is the average humidity in September in Roberta?

In Roberta, Alabama, the average relative humidity in September is 73%.

What is the driest month in Roberta?

September and October are months with the least rain when the rain falls for 11.9 days and typically aggregates up to 1.26" (32mm) of rain.

How many days does it rain in September in Roberta?

In Roberta, in September, it is raining for 11.9 days, with typically 1.26" (32mm) of accumulated precipitation.

When it does not snow in Roberta?

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

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

In September, the average day length in Roberta, Alabama, is 12h and 22min.

When is the sunrise / sunset in September in Roberta?

In September, on the first day of the month, sunrise is at 6:22 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:32 pm CDT.

How long on average sun shines in September in Roberta?

In Roberta, the average sunshine duration in September is 9h.

How high is the UV index in September in Roberta?

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Roberta, AL

Average temperature in September - Roberta, AL
  • Average high temperature in September: 85.5°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (51.4°F).

  • Average low temperature in September: 65.7°F

The month with the highest average low temperature is August (71.2°F).
The coldest month (with the lowest average low temperature) is January (36.3°F).

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Average pressure in September
Roberta, AL

Average pressure in September - Roberta, AL
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).

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Average wind speed in September
Roberta, AL

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

The windiest months (with the highest average wind speed) are January, February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).

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Average humidity in September
Roberta, AL

Average humidity in September - Roberta, AL
  • Average humidity in September: 73%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
Roberta, AL

Average rainfall in September - Roberta, AL
  • Average rainfall in September: 1.26"

The wettest month (with the highest rainfall) is August (2.52").
The driest months (with the least rainfall) are September and October (1.26").

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Average rainfall days in September
Roberta, AL

Average rainfall days in September - Roberta, AL
  • Average rainfall days in September: 11.9 days

The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (6.7 days).

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Average snowfall in September
Roberta, AL

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

The month with the highest snowfall is December (0.47").
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
Roberta, AL

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

The month with the highest number of snowfall days is January (1 days).
The 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
Roberta, AL

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

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 9h and 0min

The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).

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Average sunshine days in September
Roberta, AL

Average sunshine days in September - Roberta, AL
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is July (9 days).

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Average UV index in September
Roberta, AL

Average UV index in September - Roberta, AL
  • Average UV index in September: 5

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

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Average cloud cover in September
Roberta, AL

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

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is September (Cloud cover 29).

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Average visibility in September
Roberta, AL

Average visibility in September - Roberta, 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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Roberta, Alabama, USA

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