September weather forecast
Hopkins, SC

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Hopkins, South Carolina, with an average temperature varying between 84°F (28.9°C) and 67.1°F (19.5°C).

Temperature

Hopkins observes a small decrease in the average high-temperature with the arrival of September, falling from August's tropical 89.6°F (32°C) to a moderately hot 84°F (28.9°C). During September, Hopkins observes a consistent average nighttime temperature of 67.1°F (19.5°C).

Heat index

For September, the heat index is appraised at a hot 91.4°F (33°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely vital to babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.

Humidity

In September, the average relative humidity is 73%.

Rainfall

In Hopkins, in September, it is raining for 10.7 days, with typically 1.1" (28mm) of accumulated precipitation. In Hopkins, during the entire year, the rain falls for 134.6 days and collects up to 19.25" (489mm) of precipitation.

Snowfall

March through December are months without snowfall.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of the month, sunrise is at 6:57 am and sunset at 7:48 pm. On the last day of September, in Hopkins, sunrise is at 7:17 am and sunset at 7:08 pm EDT.

Sunshine

In September, the average sunshine is 8.8h.

UV index

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 6 in September transforms into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Stay sun-safe with clothing that is both closely woven and worn loosely.

Frequently asked questions

How hot is September?

During September, Hopkins experiences an average high-temperature of 84°F (28.9°C) and a low-temperature of 67.1°F (19.5°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in September is appraised at 91.4°F (33°C).

What is the average humidity in September?

The average relative humidity in September is 73%.

How many days does it rain in September?

In September, the rain falls for 10.7 days. Throughout September, 1.1" (28mm) of precipitation is accumulated.

When it does not snow?

In Hopkins, snow does not fall in March through December.

What is the average length of the day in September?

The average day length in September is 12h and 22min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:57 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:08 pm EDT.

How many hours of sunshine does Hopkins have in September?

In Hopkins, the average sunshine duration in September is 8.8h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to the Sun's 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
Hopkins, SC

Average temperature in September - Hopkins, SC
  • Average high temperature in September: 84°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (52.9°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 (37.9°F).

Average pressure in September
Hopkins, SC

Average pressure in September - Hopkins, 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
Hopkins, SC

Average wind speed in September - Hopkins, SC
  • Average wind speed in September: 6.1mph

The windiest months (with the highest average wind speed) are February and April (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in September
Hopkins, SC

Average humidity in September - Hopkins, SC
  • Average humidity in September: 73%

The month with the highest relative humidity is May (75%).
The months with the lowest relative humidity are January and November (70%).

Average rainfall in September
Hopkins, SC

Average rainfall in September - Hopkins, SC
  • Average rainfall in September: 1.1"

The wettest months (with the highest rainfall) are April and August (2.13").
The driest month (with the least rainfall) is November (1.02").

Average rainfall days in September
Hopkins, SC

Average rainfall days in September - Hopkins, SC
  • Average rainfall days in September: 10.7 days

The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is November (6.5 days).

Average snowfall in September
Hopkins, SC

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

The month with the highest snowfall is February (0.35").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
Hopkins, SC

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

The months with the highest number of snowfall days are January and February (0.4 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
Hopkins, SC

Average daylight in September / Average sunshine in September - Hopkins, 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: 9h and 54min).

  • Average sunshine in September: 8h and 5min

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
Hopkins, SC

Average sunshine days in September - Hopkins, SC
  • Average sunshine days in September: 17.3 days

The month with the most sunshine days is October (22.3 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in September
Hopkins, SC

Average UV index in September - Hopkins, 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
Hopkins, SC

Average cloud cover in September - Hopkins, SC
  • Average cloud cover in September: 31

The months with the most cloud cover are February and December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 27).

Average visibility in September
Hopkins, SC

Average visibility in September - Hopkins, 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).

Hopkins, South Carolina, USA

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