September weather forecastZemp, SC
September
Weather in September
The first month of the autumn, September, is still a warm month in Zemp, South Carolina, with temperature in the range of an average high of 83.3°F (28.5°C) and an average low of 66.2°F (19°C).Temperature
Zemp measures an average high-temperature of a warm 83.3°F (28.5°C) in September, nearly consistent with the preceding month. Throughout September, Zemp anticipates an average low-temperature of 66.2°F (19°C).Heat index
Throughout September, the heat index is appraised at a tropical 91.4°F (33°C). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.Heat index readings emphasize conditions of light breezes and shaded spots. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. 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.
Humidity
The months with the highest humidity are May and September, with an average relative humidity of 76%.Rainfall
In Zemp, during September, the rain falls for 14.5 days and regularly aggregates up to 2.52" (64mm) of precipitation. Throughout the year, there are 158.4 rainfall days, and 31.38" (797mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:55 am and sunset at 7:46 pm. On the last day of September, in Zemp, sunrise is at 7:15 am and sunset at 7:06 pm EDT.
Sunshine
In Zemp, the average sunshine in September is 9.1h.UV index
In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average maximum UV index of 6 in September leads to these recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Zemp, SC
- Average high temperature in September: 83.3°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (52.2°F).
- Average low temperature in September: 66.2°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (37°F).
Average pressure in September
Zemp, SC
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Zemp, SC
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Zemp, SC
- Average humidity in September: 76%
The months with the highest relative humidity are May and September (76%).
The months with the lowest relative humidity are January, March and November (71%).
Average rainfall in September
Zemp, SC
- Average rainfall in September: 2.52"
The wettest month (with the highest rainfall) is August (3.66").
The driest month (with the least rainfall) is January (1.73").
Average rainfall days in September
Zemp, SC
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in September
Zemp, SC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Zemp, SC
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Zemp, SC
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 6min
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 30min).
Average sunshine days in September
Zemp, SC
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is August (9 days).
Average UV index in September
Zemp, 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 2).
Average cloud cover in September
Zemp, SC
- Average cloud cover in September: 31
The months with the most cloud cover are February and December (Cloud cover 41).
The months with the least cloud cover are June and October (Cloud cover 28).
Average visibility in September
Zemp, 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).
