September weather forecast and climate
Monroeville, AL

Weather in September

The first month of the autumn, September, is also a hot month in Monroeville, Alabama, with average temperature fluctuating between 88°F (31.1°C) and 68°F (20°C).

Temperature

In September, the average high-temperature is practically the same as in August - a still tropical 88°F (31.1°C). The average low-temperature, in Monroeville, is 68°F (20°C).

Heat index

In September, the average heat index is evaluated at a very hot 103.1°F (39.5°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. With the exposure to direct sunlight, the heat index may be increased 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 calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like clothing, wind, metabolic differences, and activity influence one's weather impression. 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. 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. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In September, the average relative humidity in Monroeville is 75%.

Rainfall

In September, in Monroeville, the rain falls for 17 days. Throughout September, 2.52" (64mm) of precipitation is accumulated. In Monroeville, during the entire year, the rain falls for 174.1 days and collects up to 36.02" (915mm) of precipitation.

Snowfall

April through November are months without snowfall in Monroeville.

Daylight

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

Sunshine

In Monroeville, the average sunshine is 8.7h.

UV index

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to the UV radiation for average individuals.
Note: The average daily UV index of 6 transform into the following instructions:
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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Monroeville?

In Monroeville, in September, the average high-temperature is 88°F (31.1°C), and the average low-temperature is 68°F (20°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), that calculates temperature value influenced by the moisture in the air, in September is appraised at 103.1°F (39.5°C).

What is the average humidity in September in Monroeville?

The average relative humidity in September in Monroeville is 75%.

How many days does it rain in September in Monroeville?

In Monroeville, Alabama, in September, during 17 rainfall days, 2.52" (64mm) of precipitation is typically accumulated.

When it does not snow in Monroeville?

April through November are months without snowfall in Monroeville.

How many hours of daylight does Monroeville have in September?

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

How long on average sun shines in September in Monroeville?

In Monroeville, Alabama, the average sunshine in September is 8.7h.

What is the UV index intensity in September in Monroeville?

The average daily maximum UV index in September in Monroeville, Alabama, is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to the UV radiation.

Average temperature in September
Monroeville, AL

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

The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in September: 68°F

Months with the highest average low temperature are July and August (72.1°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).

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Average pressure in September
Monroeville, AL

Average pressure in September - Monroeville, AL
  • Average pressure in September: 29.98"

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

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Average wind speed in September
Monroeville, AL

Average wind speed in September - Monroeville, AL
  • Average wind speed in September: 4.7mph

The windiest months (with the highest average wind speed) are February, March and April (6.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).

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Average humidity in September
Monroeville, AL

Average humidity in September - Monroeville, AL
  • Average humidity in September: 75%

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
Monroeville, AL

Average rainfall in September - Monroeville, AL
  • Average rainfall in September: 2.52"

The wettest month (with the highest rainfall) is August (4.49").
The driest month (with the least rainfall) is November (2.01").

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Average rainfall days in September
Monroeville, AL

Average rainfall days in September - Monroeville, AL
  • Average rainfall days in September: 17 days

The month with the highest number of rainy days is July (23.3 days).
The month with the least rainy days is November (7.5 days).

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Average snowfall in September
Monroeville, AL

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

The month with the highest snowfall is January (0.24").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Monroeville, AL

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

Months with the highest number of snowfall days are January and February (0.4 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
Monroeville, AL

Average daylight in September / Average sunshine in September - Monroeville, 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: 8.7h

The month with the most sunshine is June (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 5h).

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Average sunshine days in September
Monroeville, AL

Average sunshine days in September - Monroeville, AL
  • Average sunshine days in September: 11.3 days

The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is July (5.4 days).

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Average UV index in September
Monroeville, AL

Average UV index in September - Monroeville, 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, November and December (UV index 3).

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Average cloud cover in September
Monroeville, AL

Average cloud cover in September - Monroeville, AL
  • Average cloud cover in September: 33

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 31).

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Average visibility in September
Monroeville, AL

Average visibility in September - Monroeville, AL
  • Average visibility in September: 5mi

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

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