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
Demopolis's weather in September, with an average high-temperature of a still hot 87.6°F (30.9°C), subtly shifts from August's 92.1°F (33.4°C). Nighttime temperatures in Demopolis hover around an average low of 67.1°F (19.5°C) in September.Heat index
Throughout September, the heat index is computed to be a fiery hot 100.4°F (38°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.
Humidity
In September, the average relative humidity in Demopolis is 71%.Rainfall
September is the month with the least rainfall in Demopolis. Rain falls for 11 days and accumulates 1.65" (42mm) of precipitation.Snowfall
In Demopolis, snow does not fall in March through October.Daylight
The average length of the day in September in Demopolis is 12h and 22min.On the first day of September in Demopolis, sunrise is at 6:26 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 6:36 pm CDT.
Sunshine
The average sunshine in September in Demopolis, Alabama, is 9.1h.UV index
In Demopolis, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 6 during September translates into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Frequently asked questions
Is it hot in Demopolis during September?
What is the average humidity in September in Demopolis?
What is the driest month in Demopolis?
How many days does it rain in September in Demopolis?
When it does not snow in Demopolis?
What is the average length of the day in September in Demopolis?
What time are sunrise and sunset in September in Demopolis?
How long on average sun shines in September in Demopolis?
What is the UV index reading in September in Demopolis?
Average temperature in September
Demopolis, AL
- Average high temperature in September: 87.6°F
The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is January (54.1°F).
- Average low temperature in September: 67.1°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (38.3°F).
Average pressure in September
Demopolis, AL
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in September
Demopolis, AL
- Average wind speed in September: 5.2mph
The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
Demopolis, AL
- Average humidity in September: 71%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Demopolis, AL
- Average rainfall in September: 1.65"
The wettest months (with the highest rainfall) are April and December (3.74").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in September
Demopolis, AL
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is October (8.3 days).
Average snowfall in September
Demopolis, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.43").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in September
Demopolis, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Demopolis, 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 6min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in September
Demopolis, AL
- Average sunshine days in September: 17.8 days
The month with the most sunshine days is October (22.4 days).
The month with the least sunshine days is July (10.4 days).
Average UV index in September
Demopolis, AL
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Demopolis, AL
- Average cloud cover in September: 30
The months with the most cloud cover are February and December (Cloud cover 48).
The months with the least cloud cover are September and October (Cloud cover 30).
Average visibility in September
Demopolis, 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).
Demopolis, Alabama, USA
Weather forecast for your location
2. Allow the app to use your location
