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's commencement is accompanied by an average high-temperature of a warm 85.6°F (29.8°C), diverging marginally from August's 90.1°F (32.3°C). The nighttime temperature dips to an agreeable 72.5°F (22.5°C) on average during September.Heat index
During September, the heat index is evaluated at a very hot 96.8°F (36°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.For clarity, heat index numbers account for light winds and areas under shade. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. 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 particularly relevant to children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.
Humidity
The average relative humidity in September is 77%.Rainfall
In Darien, in September, during 14.8 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. In Darien, during the entire year, the rain falls for 155.7 days and collects up to 26.57" (675mm) of precipitation.Snowfall
In Darien, snow does not fall in January, March through November.Daylight
In September, the average length of the day is 12h and 21min.On the first day of the month, sunrise is at 7:02 am and sunset at 7:48 pm. On the last day of September, sunrise is at 7:19 am and sunset at 7:11 pm EDT.
Sunshine
In Darien, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index in Darien is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Prevent overexposure. Protection from the sun's harmful effects is needed. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Frequently asked questions
How hot does it get in Darien in September?
What is the average humidity in September in Darien?
How many days does it rain in September in Darien?
When it does not snow in Darien?
How many hours of daylight does Darien have in September?
What time are sunrise and sunset in September in Darien?
How long on average sun shines in September in Darien?
What is the UV index reading in September in Darien?
Average temperature in September
Darien, GA
- Average high temperature in September: 85.6°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 (59.7°F).
- Average low temperature in September: 72.5°F
The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (45.7°F).
Average pressure in September
Darien, GA
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in September
Darien, GA
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Darien, GA
- Average humidity in September: 77%
The months with the highest relative humidity are August and December (78%).
The month with the lowest relative humidity is March (72%).
Average rainfall in September
Darien, GA
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in September
Darien, GA
- Average rainfall days in September: 14.8 days
The month with the highest number of rainy days is August (20 days).
The month with the least rainy days is November (7.9 days).
Average snowfall days in September
Darien, GA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are February and December (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Darien, 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: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Darien, GA
- Average sunshine days in September: 13.2 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is August (8.4 days).
Average UV index in September
Darien, 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
Darien, GA
- Average cloud cover in September: 30
The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in September
Darien, 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).
Darien, Georgia, USA
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