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
September's average high-temperature stands at a still hot 87.1°F (30.6°C), showing little deviation from August's 90.9°F (32.7°C). September generally records an average low-temperature of 73.6°F (23.1°C).Heat index
The heat index in September is computed to be a sweltering 100.4°F (38°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.Research indicates the heat index considers values in shaded locales and with light winds. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', determines the feeling of heat when you account for the relative humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
In September, the average relative humidity is 75%.Rainfall
In September, the rain falls for 18.4 days. Throughout September, 3.39" (86mm) of precipitation is accumulated. In Vancleave, during the entire year, the rain falls for 176.9 days and collects up to 39.33" (999mm) of precipitation.Snowfall
In Vancleave, Mississippi, snow does not fall in February through December.Daylight
The average length of the day in September in Vancleave is 12h and 20min.On the first day of September, sunrise is at 6:31 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:40 pm CDT.
Sunshine
The average sunshine in September is 9.8h.UV index
In Vancleave, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Guard oneself from overexposure. Defence against sun injury is vital. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Vancleave have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September in Vancleave?
Average temperature in September
Vancleave, MS
- Average high temperature in September: 87.1°F
The warmest month (with the highest average high temperature) is August (90.9°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in September: 73.6°F
The month with the highest average low temperature is August (77°F).
The coldest month (with the lowest average low temperature) is January (45.1°F).
Average pressure in September
Vancleave, 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
Vancleave, MS
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in September
Vancleave, MS
- Average humidity in September: 75%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Vancleave, MS
- Average rainfall in September: 3.39"
The wettest month (with the highest rainfall) is August (5.79").
The driest month (with the least rainfall) is November (2.05").
Average rainfall days in September
Vancleave, MS
- Average rainfall days in September: 18.4 days
The month with the highest number of rainy days is July (23.7 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
Vancleave, MS
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.12").
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
Vancleave, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Vancleave, 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: 9h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The months with the least sunshine are February and December (Average sunshine: 5h and 18min).
Average sunshine days in September
Vancleave, MS
- Average sunshine days in September: 9.2 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is August (5.2 days).
Average UV index in September
Vancleave, 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
Vancleave, MS
- Average cloud cover in September: 25
The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 24).
Average visibility in September
Vancleave, 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).
Vancleave, Mississippi, USA
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