September weather forecastMcBee, SC
September
Weather in September
September witnesses a gradual cooling effect as the intense summer heat starts to fade away. The temperature fluctuates between a comfortable high of 83.3°F (28.5°C), marking the first hints of the upcoming fall season. As temperatures plummet, September marks the transition from sizzling summer to the colorful fall season. Nature begins its mesmerizing transformation into a riot of colors, making outdoor exploration even more appealing.Temperature
McBee records an average high-temperature of a warm 83.3°F (28.5°C) in September, maintaining a close correlation with August's 88°F (31.1°C). McBee, during the month of September, experiences an average low-temperature of 66.2°F (19°C).Heat index
The average heat index in September is appraised at a hot 91.4°F (33°C). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Humidity
May and September, with an average relative humidity of 76%, are the most humid months.Rainfall
In September, the rain falls for 13.1 days. Throughout September, 2.64" (67mm) of precipitation is accumulated. In McBee, during the entire year, the rain falls for 154 days and collects up to 30.51" (775mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September, sunrise is at 6:54 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:06 pm EDT.
Sunshine
In McBee, the average sunshine in September is 9.1h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 6 translates into these guidelines:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. 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
Average temperature in September
McBee, SC
- Average high temperature in September: 83.3°F
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (51.8°F).
- Average low temperature in September: 66.2°F
The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (36.9°F).
Average pressure in September
McBee, 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
McBee, SC
- Average wind speed in September: 6.3mph
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
McBee, 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 and November (71%).
Average rainfall in September
McBee, SC
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is January (1.81").
Average rainfall days in September
McBee, SC
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is October (7.8 days).
Average snowfall in September
McBee, SC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
McBee, SC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is 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
McBee, 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 months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
McBee, SC
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is October (21.9 days).
The month with the least sunshine days is July (11 days).
Average UV index in September
McBee, 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
McBee, SC
- Average cloud cover in September: 32
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 29).
Average visibility in September
McBee, 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).





