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
As Perdido steps into September, the average high-temperature is measured at a still hot 87.4°F (30.8°C), displaying minor differences from August's 90.9°F (32.7°C). The average low-temperature during September nights is an agreeable 68.4°F (20.2°C).Heat index
The heat index value for September is evaluated at a very hot 102.2°F (39°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.
Humidity
In Perdido, the average relative humidity in September is 77%.Rainfall
In Perdido, in September, it is raining for 17.7 days, with typically 3.19" (81mm) of accumulated precipitation. Throughout the year, there are 176.1 rainfall days, and 38.39" (975mm) of precipitation is accumulated.Snowfall
March through November are months without snowfall in Perdido.Daylight
The average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:13 pm. On the last day of September, sunrise is at 6:43 am and sunset at 6:36 pm CDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
In Perdido, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: In September, an average UV index of 6 transforms into the following instructions:
Deflect overexposure. Sun protection is a necessity. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Perdido have in September?
What is the UV index reading in September?
Average temperature in September
Perdido, AL
- Average high temperature in September: 87.4°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (57.7°F).
- Average low temperature in September: 68.4°F
The month with the highest average low temperature is August (72.9°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).
Average pressure in September
Perdido, 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
Perdido, AL
- Average wind speed in September: 4.5mph
The windiest months (with the highest average wind speed) are March and April (6.2mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).
Average humidity in September
Perdido, AL
- Average humidity in September: 77%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Perdido, AL
- Average rainfall in September: 3.19"
The wettest month (with the highest rainfall) is August (4.92").
The driest month (with the least rainfall) is November (2.09").
Average rainfall days in September
Perdido, AL
- Average rainfall days in September: 17.7 days
The month with the highest number of rainy days is July (23.8 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in September
Perdido, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.28").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Perdido, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Perdido, 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: 8h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Perdido, AL
- Average sunshine days in September: 10.9 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is July (5.9 days).
Average UV index in September
Perdido, AL
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Perdido, AL
- Average cloud cover in September: 35
The month with the most cloud cover is December (Cloud cover 53).
The month with the least cloud cover is October (Cloud cover 31).
Average visibility in September
Perdido, AL
- Average visibility in September: 5mi
The months with the highest visibility are June and October (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September, November and December (5mi).
Perdido, Alabama, USA
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