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, Opp experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 90.7°F (32.6°C) in August to a still tropical 86.9°F (30.5°C). Opp reports an average nighttime low-temperature of 68.9°F (20.5°C) in September.Heat index
In September, the average heat index is appraised at a sweltering 98.6°F (37°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an estimation of the warmth sensation when considering humidity levels. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. 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 quite important for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.
Humidity
The average relative humidity in September in Opp is 74%.Rainfall
In Opp, in September, during 17.2 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. In Opp, during the entire year, the rain falls for 178.2 days and collects up to 36.1" (917mm) of precipitation.Snowfall
In Opp, snow does not fall in March through December.Daylight
In Opp, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:21 am and sunset at 7:08 pm. On the last day of September, sunrise is at 6:38 am and sunset at 6:30 pm CDT.
Sunshine
In September, the average sunshine is 9h.UV index
In September, the average daily maximum UV index in Opp is 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 6 during September translates into these guidelines:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Frequently asked questions
How hot is it in Opp in September?
What is the average humidity in September in Opp?
How many days does it rain in September in Opp?
When it does not snow in Opp?
How many hours of daylight does Opp have in September?
What time are sunrise and sunset in September in Opp?
How long on average sun shines in September in Opp?
How high is the UV index in September in Opp?
Average temperature in September
Opp, AL
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (57.9°F).
- Average low temperature in September: 68.9°F
The months with the highest average low temperature are July and August (73°F).
The coldest month (with the lowest average low temperature) is January (40.8°F).
Average pressure in September
Opp, 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
Opp, AL
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is January (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Opp, AL
- Average humidity in September: 74%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Opp, AL
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is August (4.84").
The driest month (with the least rainfall) is November (2.09").
Average rainfall days in September
Opp, AL
- Average rainfall days in September: 17.2 days
The month with the highest number of rainy days is July (24.8 days).
The month with the least rainy days is November (8 days).
Average snowfall in September
Opp, AL
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.16").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Opp, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.4 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
Opp, AL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The months with the least sunshine are February and December (Average sunshine: 5h and 18min).
Average sunshine days in September
Opp, AL
- Average sunshine days in September: 10.3 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (4.4 days).
Average UV index in September
Opp, AL
- Average UV index in September: 6
The months with the highest UV index are May, 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
Opp, AL
- Average cloud cover in September: 29
The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in September
Opp, 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).
Opp, Alabama, USA
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