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 arrival of September brings an average high-temperature of a still hot 86.4°F (30.2°C), nearly identical to August's 89.4°F (31.9°C). The average temperature during September nights is registered at a warm 74.3°F (23.5°C).Heat index
Throughout September, the heat index is computed to be a torrid 98.6°F (37°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', reflects the feeling of heat when considering both air temperature and humidity. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. By being directly under the sun, it's possible for the felt temperature to increase 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.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. 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 Long Beach is 75%.Rainfall
In September, the rain falls for 19.2 days. Throughout September, 3.98" (101mm) of precipitation is accumulated. In Long Beach, during the entire year, the rain falls for 183.1 days and collects up to 42.83" (1088mm) of precipitation.Snowfall
In Long Beach, snow does not fall in February through December.Daylight
In Long Beach, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:18 pm. On the last day of September, sunrise is at 6:49 am and sunset at 6:42 pm CDT.
Sunshine
In Long Beach, Mississippi, the average sunshine in September is 10.1h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 6 during September translates into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
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 in Long Beach?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Long Beach have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Long Beach have in September?
How high is the UV index in September?
Average temperature in September
Long Beach, MS
- Average high temperature in September: 86.4°F
The warmest month (with the highest average high temperature) is August (89.4°F).
The month with the lowest average high temperature is January (59°F).
- Average low temperature in September: 74.3°F
The month with the highest average low temperature is August (77.9°F).
The coldest month (with the lowest average low temperature) is January (45.9°F).
Average pressure in September
Long Beach, MS
- 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
Long Beach, MS
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).
Average humidity in September
Long Beach, MS
- Average humidity in September: 75%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Long Beach, MS
- Average rainfall in September: 3.98"
The wettest month (with the highest rainfall) is August (6.73").
The driest month (with the least rainfall) is November (2.05").
Average rainfall days in September
Long Beach, MS
- Average rainfall days in September: 19.2 days
The months with the highest number of rainy days are July and August (23.8 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
Long Beach, MS
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.31").
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
Long Beach, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Long Beach, MS
- 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: 10h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Long Beach, MS
- Average sunshine days in September: 8.6 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (5 days).
Average UV index in September
Long Beach, MS
- 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, November and December (UV index 4).
Average cloud cover in September
Long Beach, MS
- Average cloud cover in September: 24
The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 23).
Average visibility in September
Long Beach, MS
- 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).
Long Beach, Mississippi, USA
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