September weather forecast
Hidden Lake, SC

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Weather in September

September, the first month of the autumn in Hidden Lake, is also a moderately hot month, with an average temperature varying between 63.5°F (17.5°C) and 83.7°F (28.7°C).

Temperature

September's onset introduces a mild reduction in the average high-temperature, from a hot 89.4°F (31.9°C) in August to a warm 83.7°F (28.7°C). In Hidden Lake, the September nights cool down to an average low of 63.5°F (17.5°C).

Heat index

September's mean heat index is computed to be a tropical 89.6°F (32°C). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity 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 highly critical for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.

Humidity

In September, the average relative humidity in Hidden Lake is 72%.

Rainfall

September is the month with the least rainfall. Rain falls for 9.7 days and accumulates 0.79" (20mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

In Hidden Lake, the average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 7:04 am and sunset at 7:56 pm. On the last day of September, sunrise is at 7:25 am and sunset at 7:16 pm EDT.

Sunshine

The average sunshine in September in Hidden Lake is 8.5h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. It's recommended to limit sun exposure when its radiation is at its peak during midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during September?

September temperatures vary between a high-temperature of 83.7°F (28.7°C) and a low-temperature of 63.5°F (17.5°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is computed to be 89.6°F (32°C).

What is the average humidity in September?

In September, the average relative humidity is 72%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 9.7 days and typically collects 0.79" (20mm) of precipitation.

How much does it rain in September?

In Hidden Lake, during September, the rain falls for 9.7 days and regularly aggregates up to 0.79" (20mm) of precipitation.

When it does not snow?

In Hidden Lake, South Carolina, snow does not fall in April through November.

What is the average length of the day in September?

In Hidden Lake, the average day length in September is 12h and 23min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 7:04 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:16 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.5h.

What is the UV index intensity in September in Hidden Lake?

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
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
Hidden Lake, SC

Average temperature in September - Hidden Lake, SC
  • Average high temperature in September: 83.7°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (50.2°F).

  • Average low temperature in September: 63.5°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).

Average pressure in September
Hidden Lake, SC

Average pressure in September - Hidden Lake, SC
  • Average pressure in September: 30.03"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in September
Hidden Lake, SC

Average wind speed in September - Hidden Lake, SC
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in September
Hidden Lake, SC

Average humidity in September - Hidden Lake, SC
  • Average humidity in September: 72%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (69%).

Average rainfall in September
Hidden Lake, SC

Average rainfall in September - Hidden Lake, SC
  • Average rainfall in September: 0.79"

The wettest month (with the highest rainfall) is August (2.28").
The driest month (with the least rainfall) is September (0.79").

Average rainfall days in September
Hidden Lake, SC

Average rainfall days in September - Hidden Lake, SC
  • Average rainfall days in September: 9.7 days

The month with the highest number of rainy days is July (15.4 days).
The month with the least rainy days is October (7.2 days).

Average snowfall in September
Hidden Lake, SC

Average snowfall in September - Hidden Lake, SC
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Hidden Lake, SC

Average snowfall days in September - Hidden Lake, SC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.9 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
Hidden Lake, SC

Average daylight in September / Average sunshine in September - Hidden Lake, 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 3min

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 6min).

Average sunshine days in September
Hidden Lake, SC

Average sunshine days in September - Hidden Lake, SC
  • Average sunshine days in September: 18.5 days

The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is July (14.3 days).

Average UV index in September
Hidden Lake, SC

Average UV index in September - Hidden Lake, SC
  • Average UV index in September: 5

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in September
Hidden Lake, SC

Average cloud cover in September - Hidden Lake, SC
  • Average cloud cover in September: 32

The month with the most cloud cover is February (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 29).

Average visibility in September
Hidden Lake, SC

Average visibility in September - Hidden Lake, SC
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

Hidden Lake, South Carolina, USA

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