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 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 observes an average high-temperature of a moderately hot 83.3°F (28.5°C), marking an insignificant difference from August's 87.1°F (30.6°C). Wilmington Island's evenings during September maintain an average temperature of 74.5°F (23.6°C), aligning closely with the daytime temperatures.Heat index
The heat index value during September is evaluated at a tropical 89.6°F (32°C). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.Know that the heat index computations account for shaded terrains and slight winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
The average relative humidity in September is 75%.Rainfall
In Wilmington Island, during September, the rain falls for 15.5 days and regularly aggregates up to 3.31" (84mm) of precipitation. Throughout the year, in Wilmington Island, Georgia, there are 166.3 rainfall days, and 36.89" (937mm) of precipitation is accumulated.Snowfall
In Wilmington Island, Georgia, snow does not fall in March through December.Daylight
In September, the average length of the day is 12h and 21min.On the first day of the month, sunrise is at 6:59 am and sunset at 7:47 pm. On the last day of September, in Wilmington Island, sunrise is at 7:17 am and sunset at 7:09 pm EDT.
Sunshine
In Wilmington Island, the average sunshine in September is 8.6h.UV index
In Wilmington Island, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, an average UV index of 6 transforms into the following instructions:
Resist overexposure. Safeguarding from solar damage is indispensable. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
How hot does it get in Wilmington Island in September?
What is the average humidity in September in Wilmington Island?
How many days does it rain in September in Wilmington Island?
When it does not snow in Wilmington Island?
How many hours of daylight does Wilmington Island have in September?
What time are sunrise and sunset in September in Wilmington Island?
How long on average sun shines in September in Wilmington Island?
What is the UV index reading in September in Wilmington Island?
Average temperature in September
Wilmington Island, GA
- Average high temperature in September: 83.3°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (57.7°F).
- Average low temperature in September: 74.5°F
The month with the highest average low temperature is August (78.4°F).
The coldest month (with the lowest average low temperature) is January (47.1°F).
Average pressure in September
Wilmington Island, GA
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in September
Wilmington Island, GA
- Average wind speed in September: 8.9mph
The windiest months (with the highest average wind speed) are January and November (10.3mph).
The calmest month (with the lowest average wind speed) is August (8.2mph).
Average humidity in September
Wilmington Island, GA
- Average humidity in September: 75%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are January, March and October (73%).
Average rainfall in September
Wilmington Island, GA
- Average rainfall in September: 3.31"
The wettest month (with the highest rainfall) is August (6.02").
The driest month (with the least rainfall) is January (1.5").
Average rainfall days in September
Wilmington Island, GA
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is August (22.5 days).
The month with the least rainy days is November (8 days).
Average snowfall days in September
Wilmington Island, GA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Wilmington Island, GA
- 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 6min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Wilmington Island, GA
- Average sunshine days in September: 12.2 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is August (6 days).
Average UV index in September
Wilmington Island, GA
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in September
Wilmington Island, GA
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in September
Wilmington Island, GA
- 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).
Wilmington Island, Georgia, USA
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