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
The high-temperature average in September for Sewell, Alabama, is a warm 83.3°F (28.5°C), staying closely aligned with August's conditions. In Sewell, September nights cool down to an average of 63.7°F (17.6°C).Heat index
The heat index for September is calculated to be a hot 91.4°F (33°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
In Sewell, the average relative humidity in September is 76%.Rainfall
In Sewell, during September, the rain falls for 14.4 days and regularly aggregates up to 2.87" (73mm) of precipitation. In Sewell, Alabama, during the entire year, the rain falls for 182.8 days and collects up to 41.5" (1054mm) of precipitation.Snowfall
In Sewell, Alabama, snow does not fall in April through October.Daylight
In Sewell, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:15 am and sunset at 7:06 pm. On the last day of September, sunrise is at 6:35 am and sunset at 6:26 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 5 in September transforms into this advice:
Adopt protective measures - Suggestions to resist sunburn are offered. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
How hot is it in Sewell in September?
What is the average humidity in September in Sewell?
How much does it rain in Sewell in September?
When it does not snow in Sewell?
How many hours of daylight does Sewell have in September?
When is the sunrise / sunset in September in Sewell?
How many hours of sunshine does Sewell have in September?
How high is the UV index in September in Sewell?
Average temperature in September
Sewell, AL
- Average high temperature in September: 83.3°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (50.5°F).
- Average low temperature in September: 63.7°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).
Average pressure in September
Sewell, AL
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Sewell, AL
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Sewell, AL
- Average humidity in September: 76%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are October and November (74%).
Average rainfall in September
Sewell, AL
- Average rainfall in September: 2.87"
The wettest month (with the highest rainfall) is August (4.92").
The driest month (with the least rainfall) is October (2.09").
Average rainfall days in September
Sewell, AL
- Average rainfall days in September: 14.4 days
The month with the highest number of rainy days is July (23.2 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in September
Sewell, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Sewell, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Sewell, 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: 8h and 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Sewell, AL
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (6.3 days).
Average UV index in September
Sewell, AL
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Sewell, AL
- Average cloud cover in September: 33
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 32).
Average visibility in September
Sewell, AL
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, October and November (6mi).
The months with the lowest visibility are July, August, September and December (5mi).
Sewell, Alabama, USA
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