September weather forecast
Long Beach, MS

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Weather in September

September, an entryway to the autumn season, mirrors the cooling trend of the temperatures in Long Beach, scaling down to 86.4°F (30.2°C). This dip in temperature is a subtle nod to the approaching cooler months. While the rainfall levels go down as compared to the peak summer months, the humidity remains constant, maintaining the summer's ethereal coastal vibe. As the city experiences fewer daylight hours with the arrival of fall, the changing weather dynamics provide a distinctive end to the more heated months.

Temperature

The arrival of September records an average high-temperature of a still hot 86.4°F (30.2°C), closely related to the 89.4°F (31.9°C) observed in August. Long Beach witnesses a consistent average low-temperature of 74.3°F (23.5°C) throughout September.

Heat index

During September, the heat index is appraised at a very hot 98.6°F (37°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

The average relative humidity in September is 75%.

Rainfall

In Long Beach, in September, during 19.2 rainfall days, 3.98" (101mm) of precipitation is typically 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

February through December are months without snowfall.

Daylight

In Long Beach, the average length of the day in September is 12h and 20min.
On the first day of September in Long Beach, sunrise is at 6:33 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:42 pm CDT.

Sunshine

The average sunshine in September in Long Beach is 10.1h.

UV index

In Long Beach, 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 radiation for the ordinary person.
Note: In September, the maximum UV index of 6 transforms into these recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
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Frequently asked questions

How hot does it get in Long Beach in September?

In September, the average high-temperature and low-temperature in Long Beach, Mississippi, are 86.4°F (30.2°C) and 74.3°F (23.5°C) respectively. In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is appraised at 98.6°F (37°C).

What is the average humidity in September in Long Beach?

In Long Beach, Mississippi, the average relative humidity in September is 75%.

How many days does it rain in September in Long Beach?

In Long Beach, in September, it is raining for 19.2 days, with typically 3.98" (101mm) of accumulated precipitation.

When it does not snow in Long Beach?

February through December are months without snowfall in Long Beach.

What is the average length of the day in September in Long Beach?

The average day length in September is 12h and 20min.

When is the sunrise / sunset in September in Long Beach?

On the first day of September in Long Beach, Mississippi, sunrise is at 6:33 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:42 pm CDT.

How many hours of sunshine does Long Beach have in September?

The average sunshine duration in September is 10.1h.

How high is the UV index in September in Long Beach?

In September, the average daily maximum UV index in Long Beach is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Long Beach, MS

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).

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Average pressure in September
Long Beach, MS

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).

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Average wind speed in September
Long Beach, MS

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).

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Average humidity in September
Long Beach, MS

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%).

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Average rainfall in September
Long Beach, MS

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").

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Average rainfall days in September
Long Beach, MS

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).

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Average snowfall in September
Long Beach, MS

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").

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Average snowfall days in September
Long Beach, MS

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).

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Average daylight in September /
Average sunshine in September
Long Beach, MS

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).

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Average sunshine days in September
Long Beach, MS

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).

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Average UV index in September
Long Beach, MS

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).

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Average cloud cover in September
Long Beach, MS

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).

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Average visibility in September
Long Beach, MS

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).

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Long Beach, Mississippi, USA

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