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 arrival shows an average high-temperature of a moderately hot 84.7°F (29.3°C), hardly different from the previous month. Glynn Isles experiences an average temperature drop to a comfortable 64.9°F (18.3°C) during September nights.Heat index
Throughout September, the heat index is estimated at a tropical 93.2°F (34°C). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.It is essential to grasp that the heat index's numbers are for shade and light wind settings. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Humidity
In September, the average relative humidity is 73%.Rainfall
In September, in Glynn Isles, Georgia, the rain falls for 10.2 days. Throughout September, 0.79" (20mm) of precipitation is accumulated. In Glynn Isles, Georgia, during the entire year, the rain falls for 132.6 days and collects up to 14.41" (366mm) of precipitation.Snowfall
March through December are months without snowfall.Daylight
The average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 7:10 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:21 pm EDT.
Sunshine
The average sunshine in September in Glynn Isles is 8.6h.UV index
In Glynn Isles, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: In September, a regular UV index of 5 translates into these guidelines:
Adopt protective measures - It is advised to guard against sun damage. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
How hot is it in Glynn Isles in September?
What is the average humidity in September in Glynn Isles?
How much does it rain in Glynn Isles in September?
When it does not snow in Glynn Isles?
How many hours of daylight does Glynn Isles have in September?
When is the sunrise / sunset in September in Glynn Isles?
How many hours of sunshine does Glynn Isles have in September?
What is the UV index intensity in September in Glynn Isles?
Average temperature in September
Glynn Isles, GA
- Average high temperature in September: 84.7°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (51.6°F).
- Average low temperature in September: 64.9°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (35.6°F).
Average pressure in September
Glynn Isles, GA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Glynn Isles, GA
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Glynn Isles, GA
- Average humidity in September: 73%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are October and November (72%).
Average rainfall in September
Glynn Isles, GA
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is August (2.2").
The driest month (with the least rainfall) is October (0.75").
Average rainfall days in September
Glynn Isles, GA
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is November (6 days).
Average snowfall in September
Glynn Isles, GA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Glynn Isles, GA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and December (0 days).
Average daylight in September /
Average sunshine in September
Glynn Isles, GA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Glynn Isles, GA
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is October (22.5 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in September
Glynn Isles, GA
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Glynn Isles, GA
- Average cloud cover in September: 32
The month with the most cloud cover is December (Cloud cover 45).
The months with the least cloud cover are June and October (Cloud cover 31).
Average visibility in September
Glynn Isles, 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).
Glynn Isles, Georgia, USA
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