September weather forecast
Juneville, SC

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Weather in September

September, the first month of the autumn in Juneville, is still a warm month, with an average temperature fluctuating between 83.8°F (28.8°C) and 67.1°F (19.5°C).

Temperature

In September, Juneville experiences a minor shift in meteorological conditions with average high-temperatures marked at a warm 83.8°F (28.8°C), closely mirroring the climate in August. During September, Juneville's temperature averages to a refreshing 67.1°F (19.5°C) at night.

Heat index

In September, the heat index is calculated to be a tropical 93.2°F (34°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

In Juneville, the average relative humidity in September is 77%.

Rainfall

In September, the rain falls for 13.9 days. Throughout September, 2.44" (62mm) of precipitation is accumulated. Throughout the year, there are 158.1 rainfall days, and 30.28" (769mm) of precipitation is accumulated.

Snowfall

In Juneville, snow does not fall in March through November.

Daylight

In September, the average length of the day in Juneville is 12h and 22min.
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, sunrise is at 7:15 am and sunset at 7:06 pm EDT.

Sunshine

The average sunshine in September is 9h.

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 rays for the ordinary person.
Note: The daily high UV index of 6 during September translates into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Updated: Jun 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

An average high-temperature, in September, in Juneville, is 83.8°F (28.8°C) and the average low-temperature is 67.1°F (19.5°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, is calculated to be 93.2°F (34°C).

What is the average humidity in September?

In Juneville, the average relative humidity in September is 77%.

How many days does it rain in September?

In September, the rain falls for 13.9 days. Throughout September, 2.44" (62mm) of precipitation is accumulated.

When it does not snow?

In Juneville, snow does not fall in March through November.

What is the average length of the day in September?

In Juneville, the average day length in September is 12h and 22min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:55 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.

How long on average sun shines in September?

The average sunshine duration in September is 9h.

How high is the UV index in September?

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Juneville, SC

Average temperature in September - Juneville, SC
  • Average high temperature in September: 83.8°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (53.6°F).

  • Average low temperature in September: 67.1°F

The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (38.1°F).

Average pressure in September
Juneville, SC

Average pressure in September - Juneville, SC
  • 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 (29.97"Hg).

Average wind speed in September
Juneville, SC

Average wind speed in September - Juneville, SC
  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in September
Juneville, SC

Average humidity in September - Juneville, SC
  • Average humidity in September: 77%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January and November (72%).

Average rainfall in September
Juneville, SC

Average rainfall in September - Juneville, SC
  • Average rainfall in September: 2.44"

The wettest months (with the highest rainfall) are August and December (3.23").
The driest month (with the least rainfall) is January (1.65").

Average rainfall days in September
Juneville, SC

Average rainfall days in September - Juneville, SC
  • Average rainfall days in September: 13.9 days

The months with the highest number of rainy days are July and August (18.8 days).
The month with the least rainy days is November (8 days).

Average snowfall in September
Juneville, SC

Average snowfall in September - Juneville, SC
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Juneville, SC

Average snowfall days in September - Juneville, SC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Juneville, SC

Average daylight in September / Average sunshine in September - Juneville, SC
  • 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: 10h and 0min).

  • Average sunshine in September: 9h and 0min

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 36min).

Average sunshine days in September
Juneville, SC

Average sunshine days in September - Juneville, SC
  • Average sunshine days in September: 14 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (9.2 days).

Average UV index in September
Juneville, SC

Average UV index in September - Juneville, SC
  • Average UV index in September: 6

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in September
Juneville, SC

Average cloud cover in September - Juneville, SC
  • Average cloud cover in September: 32

The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is October (Cloud cover 27).

Average visibility in September
Juneville, SC

Average visibility in September - Juneville, 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).

Juneville, South Carolina, USA

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