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 shift into September finds Glynn at an average high-temperature of a still hot 87.8°F (31°C), closely comparable to August's conditions. Throughout September, Glynn experiences a low-temperature average of 69.1°F (20.6°C).Heat index
September's mean heat index is appraised at a blisteringly hot 105.8°F (41°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.Be aware that heat index ratings are designed for shaded locations and minor breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.
Humidity
In Glynn, the average relative humidity in September is 79%.Rainfall
In September, the rain falls for 13.6 days. Throughout September, 0.75" (19mm) of precipitation is accumulated. Throughout the year, there are 134.7 rainfall days, and 12.48" (317mm) of precipitation is accumulated.Snowfall
February through November are months without snowfall in Glynn.Daylight
In September, the average length of the day is 12h and 20min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:28 pm. On the last day of September, in Glynn, sunrise is at 6:58 am and sunset at 6:51 pm CDT.
Sunshine
The average sunshine in September is 9.4h.UV index
In Glynn, 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 unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 6 in September transforms into this advice:
Take precautions against overexposure. Protection against sun damage is needed. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
How hot is September in Glynn?
What is the average humidity in September in Glynn?
How much does it rain in Glynn in September?
When it does not snow in Glynn?
What is the average length of the day in September in Glynn?
When are sunrise and sunset in September in Glynn?
How many hours of sunshine does Glynn have in September?
How high is the UV index in September in Glynn?
Average temperature in September
Glynn, LA
- Average high temperature in September: 87.8°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (57.6°F).
- Average low temperature in September: 69.1°F
The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (41.9°F).
Average pressure in September
Glynn, LA
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.96"Hg).
Average wind speed in September
Glynn, LA
- Average wind speed in September: 4.4mph
The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.2mph).
Average humidity in September
Glynn, LA
- Average humidity in September: 79%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Glynn, LA
- Average rainfall in September: 0.75"
The wettest month (with the highest rainfall) is July (1.81").
The driest month (with the least rainfall) is March (0.67").
Average rainfall days in September
Glynn, LA
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is November (6.3 days).
Average snowfall in September
Glynn, LA
- Average snowfall in September: 0"
The months with the highest snowfall are January and December (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Glynn, LA
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, October and November (0 days).
Average daylight in September /
Average sunshine in September
Glynn, LA
- 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 2min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Glynn, LA
- Average sunshine days in September: 12.3 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is August (9.4 days).
Average UV index in September
Glynn, LA
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Glynn, LA
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in September
Glynn, LA
- Average visibility in September: 5mi
The months with the highest visibility are October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September and December (5mi).
Glynn, Louisiana, USA
Weather forecast for your location
2. Allow the app to use your location
