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
Bristol starts September with an average high-temperature of a still tropical 86.2°F (30.1°C), hinting at a minimal fluctuation from August. Bristol's temperature drops to an average low of 69.8°F (21°C) during the nights of September.Heat index
In September, the average heat index is estimated at a very hot 98.6°F (37°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.Be aware that heat index ratings are designed for shaded locations and minor breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
The months with the highest humidity are August and September, with an average relative humidity of 78%.Rainfall
In Bristol, in September, it is raining for 19.1 days, with typically 2.83" (72mm) of accumulated precipitation. Throughout the year, there are 183.6 rainfall days, and 32.72" (831mm) of precipitation is accumulated.Snowfall
January, March through December are months without snowfall.Daylight
In September, the average length of the day is 12h and 21min.On the first day of September in Bristol, sunrise is at 7:05 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:14 pm EDT.
Sunshine
In Bristol, the average sunshine in September is 8.5h.UV index
In Bristol, Georgia, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: During September, 6 as the daily maximum UV index converts into the following advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
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 most humid month?
What is the average humidity in September?
How much does it rain in September?
When it does not snow in Bristol?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September in Bristol?
What is the UV index reading in September?
Average temperature in September
Bristol, GA
- Average high temperature in September: 86.2°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in September: 69.8°F
The month with the highest average low temperature is August (74.1°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).
Average pressure in September
Bristol, GA
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in September
Bristol, GA
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Bristol, GA
- Average humidity in September: 78%
The months with the highest relative humidity are August and September (78%).
The month with the lowest relative humidity is January (71%).
Average rainfall in September
Bristol, GA
- Average rainfall in September: 2.83"
The wettest month (with the highest rainfall) is August (4.8").
The driest month (with the least rainfall) is January (1.42").
Average rainfall days in September
Bristol, GA
- Average rainfall days in September: 19.1 days
The month with the highest number of rainy days is August (26.3 days).
The month with the least rainy days is November (8.3 days).
Average snowfall days in September
Bristol, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Bristol, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Bristol, GA
- Average sunshine days in September: 8.5 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is August (2.2 days).
Average UV index in September
Bristol, 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
Bristol, GA
- Average cloud cover in September: 33
The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in September
Bristol, GA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are August and September (5mi).
Bristol, Georgia, USA
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