Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
In September, the average high-temperature is relatively the same as in August - a still hot 87.3°F (30.7°C). The average low-temperature, is 72.1°F (22.3°C).Heat index
The average heat index in September is computed to be a very hot 100.4°F (38°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'apparent temperature', or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is individual, with diverse people perceiving weather differently for numerous reasons (differences in body mass, height, and shape, wind, pregnancy), and activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. 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. 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
In Mobile, Alabama, the average relative humidity in September is 74%.Rainfall
In Mobile, during September, the rain falls for 17.7 days and regularly aggregates up to 3.46" (88mm) of precipitation. Throughout the year, there are 173.3 rainfall days, and 39.33" (999mm) of precipitation is accumulated.Snowfall
February through December are months without snowfall in Mobile.Daylight
In Mobile, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:28 am and sunset at 7:15 pm. On the last day of September, in Mobile, sunrise is at 6:45 am and sunset at 6:39 pm CDT.
Sunshine
In Mobile, the average sunshine in September is 9.7h.UV index
In September, the average daily maximum UV index in Mobile is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.Note: The daily maximum UV index of 6 in September interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
FAQ
What is the temperature in September in Mobile?
What is the average humidity in September in Mobile?
How much does it rain in Mobile in September?
When it does not snow in Mobile?
How many hours of daylight does Mobile have in September?
What time are sunrise and sunset in September in Mobile?
How many hours of sunshine does Mobile have in September?
What is the UV index intensity in September in Mobile?
Average temperature in September
Mobile, AL
- Average high temperature in September: 87.3°F
The warmest months (with the highest average high temperature) are July and August (90.9°F).
The month with the lowest average high temperature is January (58.5°F).
- Average low temperature in September: 72.1°F
The month with the highest average low temperature is August (76.5°F).
The coldest month (with the lowest average low temperature) is January (43.3°F).
Average pressure in September
Mobile, 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).
Average wind speed in September
Mobile, AL
- Average wind speed in September: 5.7mph
The windiest months (with the highest average wind speed) are January and April (7.4mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).
Average humidity in September
Mobile, AL
- Average humidity in September: 74%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Mobile, AL
- Average rainfall in September: 3.46"
The wettest month (with the highest rainfall) is August (5.55").
The driest month (with the least rainfall) is November (2.05").
Average rainfall days in September
Mobile, AL
- Average rainfall days in September: 17.7 days
The month with the highest number of rainy days is July (23.9 days).
The month with the least rainy days is November (8.4 days).
Average snowfall in September
Mobile, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Mobile, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Mobile, AL
- Average daylight in September: 12h and 20min
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 42min
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 24min).
Average sunshine days in September
Mobile, AL
- Average sunshine days in September: 10.7 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (5.4 days).
Average UV index in September
Mobile, 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 January (UV index 3).
Average cloud cover in September
Mobile, AL
- Average cloud cover in September: 26
The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 24).
Average visibility in September
Mobile, 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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