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
Marietta sees the arrival of September with an average high-temperature of a warm 83.3°F (28.5°C), indicating a subtle variation from August. September in Marietta generally records an average low-temperature of 66.4°F (19.1°C).Heat index
The heat index value during September is estimated at a hot 91.4°F (33°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.Be aware that heat index ratings are designed for shaded locations and minor breezes. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. 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
May, June, August and September, with an average relative humidity of 78%, are the most humid months.Rainfall
In Marietta, in September, during 15.2 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. In Marietta, North Carolina, during the entire year, the rain falls for 167.8 days and collects up to 32.68" (830mm) of precipitation.Snowfall
In Marietta, snow does not fall in April through November.Daylight
The average length of the day in September in Marietta is 12h and 23min.On the first day of the month, sunrise is at 6:50 am and sunset at 7:42 pm. On the last day of September, sunrise is at 7:10 am and sunset at 7:01 pm EDT.
Sunshine
In Marietta, the average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September in Marietta is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.Note: The UV index of 6 during September translates into the following guidance:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Frequently asked questions
How hot does it get in Marietta in September?
What are the most humid months in Marietta?
What is the average humidity in September in Marietta?
How much does it rain in Marietta in September?
When it does not snow in Marietta?
How many hours of daylight does Marietta have in September?
When are sunrise and sunset in September in Marietta?
How long on average sun shines in September in Marietta?
What is the UV index reading in September in Marietta?
Average temperature in September
Marietta, NC
- Average high temperature in September: 83.3°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (52.3°F).
- Average low temperature in September: 66.4°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (36.7°F).
Average pressure in September
Marietta, NC
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Marietta, NC
- Average wind speed in September: 6.4mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in September
Marietta, NC
- Average humidity in September: 78%
The months with the highest relative humidity are May, June, August and September (78%).
The month with the lowest relative humidity is January (73%).
Average rainfall in September
Marietta, NC
- Average rainfall in September: 3.03"
The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is January (1.5").
Average rainfall days in September
Marietta, NC
- Average rainfall days in September: 15.2 days
The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in September
Marietta, NC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.39").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Marietta, NC
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.6 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
Marietta, NC
- Average daylight in September: 12h and 2min
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 2min
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 36min).
Average sunshine days in September
Marietta, NC
- Average sunshine days in September: 12.7 days
The month with the most sunshine days is October (21 days).
The month with the least sunshine days is July (8.2 days).
Average UV index in September
Marietta, NC
- 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
Marietta, NC
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in September
Marietta, NC
- 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).
Marietta, North Carolina, USA
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