September weather forecastPalmetto Fort, SC
September
Weather in September
September, the first month of the autumn in Palmetto Fort, is also a moderately hot month, with an average temperature varying between 74.1°F (23.4°C) and 82.6°F (28.1°C).Temperature
The transition from August to September sees an average high-temperature of a still warm 82.6°F (28.1°C), indicating a minor variance from the prior month. Palmetto Fort registers a small shift from peak daytime temperatures, with a consistent average low-temperature of 74.1°F (23.4°C) during September.Heat index
The heat index 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.Research indicates the heat index considers values in shaded locales and with light winds. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
In Palmetto Fort, the average relative humidity in September is 76%.Rainfall
In Palmetto Fort, South Carolina, in September, it is raining for 18.5 days, with typically 5.67" (144mm) of accumulated precipitation. Throughout the year, there are 184.5 rainfall days, and 45.83" (1164mm) of precipitation is accumulated.Snowfall
In Palmetto Fort, snow does not fall in March through December.Daylight
In Palmetto Fort, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:54 am and sunset at 7:43 pm. On the last day of September, sunrise is at 7:13 am and sunset at 7:04 pm EDT.
Sunshine
In September, the average sunshine in Palmetto Fort is 9.2h.UV index
The average daily maximum UV index in September in Palmetto Fort is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum high daily UV index of 6 during September translates into the following directions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Palmetto Fort, SC
- Average high temperature in September: 82.6°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (57°F).
- Average low temperature in September: 74.1°F
The month with the highest average low temperature is July (78.4°F).
The coldest month (with the lowest average low temperature) is January (45.7°F).
Average pressure in September
Palmetto Fort, SC
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Palmetto Fort, SC
- Average wind speed in September: 9.4mph
The windiest months (with the highest average wind speed) are March and April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).
Average humidity in September
Palmetto Fort, SC
- Average humidity in September: 76%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are January and March (73%).
Average rainfall in September
Palmetto Fort, SC
- Average rainfall in September: 5.67"
The wettest month (with the highest rainfall) is August (7.83").
The driest month (with the least rainfall) is January (1.54").
Average rainfall days in September
Palmetto Fort, SC
- Average rainfall days in September: 18.5 days
The month with the highest number of rainy days is August (25.2 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in September
Palmetto Fort, SC
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (0.04").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Palmetto Fort, SC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Palmetto Fort, SC
- Average daylight in September: 12h and 24min
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 12min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in September
Palmetto Fort, SC
- Average sunshine days in September: 8.3 days
The month with the most sunshine days is January (18.1 days).
The month with the least sunshine days is August (2.5 days).
Average UV index in September
Palmetto Fort, SC
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in September
Palmetto Fort, SC
- Average cloud cover in September: 28
The month with the most cloud cover is December (Cloud cover 39).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
Palmetto Fort, 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).
