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
With the onset of September, a modest change to a warm 82.6°F (28.1°C) from August's 86.9°F (30.5°C) is noted in high-temperature. Georgetown, during September nights, observes an average temperature of 71.1°F (21.7°C).Heat index
The heat index value for September is calculated to be a hot 89.6°F (32°C). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.In reference to the heat index, it's for places in shade and with a slight wind. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Humidity
In Georgetown, South Carolina, the average relative humidity in September is 77%.Rainfall
In September, in Georgetown, the rain falls for 18.1 days. Throughout September, 4.92" (125mm) of precipitation is accumulated. Throughout the year, in Georgetown, there are 181.9 rainfall days, and 43.07" (1094mm) of precipitation is accumulated.Snowfall
In Georgetown, South Carolina, snow does not fall in March through December.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:51 am and sunset at 7:42 pm. On the last day of September, in Georgetown, sunrise is at 7:11 am and sunset at 7:02 pm EDT.
Sunshine
The average sunshine in September is 9.4h.UV index
In Georgetown, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: A typical high UV index of 6 in September suggests the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. 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. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Georgetown during September?
What is the average humidity in September in Georgetown?
How many days does it rain in September in Georgetown?
When it does not snow in Georgetown?
What is the average length of the day in September in Georgetown?
What time are sunrise and sunset in September in Georgetown?
How long on average sun shines in September in Georgetown?
What is the UV index reading in September in Georgetown?
Average temperature in September
Georgetown, SC
- Average high temperature in September: 82.6°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (55.2°F).
- Average low temperature in September: 71.1°F
The month with the highest average low temperature is July (76.1°F).
The coldest month (with the lowest average low temperature) is January (41.9°F).
Average pressure in September
Georgetown, SC
- Average pressure in September: 30"Hg
The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Georgetown, SC
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is April (9mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in September
Georgetown, SC
- Average humidity in September: 77%
The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are January, March and November (75%).
Average rainfall in September
Georgetown, SC
- Average rainfall in September: 4.92"
The wettest month (with the highest rainfall) is August (7.28").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in September
Georgetown, SC
- Average rainfall days in September: 18.1 days
The month with the highest number of rainy days is July (25 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in September
Georgetown, SC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Georgetown, SC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Georgetown, SC
- 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: 9h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Georgetown, SC
- Average sunshine days in September: 9 days
The month with the most sunshine days is January (19.2 days).
The month with the least sunshine days is July (3.9 days).
Average UV index in September
Georgetown, SC
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in September
Georgetown, SC
- Average cloud cover in September: 29
The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
Georgetown, SC
- 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).
Georgetown, South Carolina, USA
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