September weather forecast
Sycamore, SC

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Weather in September

September, the first month of the autumn in Sycamore, is still a warm month, with an average temperature ranging between min 68.2°F (20.1°C) and max 84.9°F (29.4°C).

Temperature

Sycamore greets September with an average high-temperature of a warm 84.9°F (29.4°C), marking a slight deviation from the preceding month. Sycamore, in September, observes a steady average low-temperature of 68.2°F (20.1°C).

Heat index

The heat index value during September is estimated at a sweltering 95°F (35°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Heat index determinations are made taking into account the shade and light air movements. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

In Sycamore, South Carolina, the average relative humidity in September is 75%.

Rainfall

In Sycamore, in September, during 13.9 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. In Sycamore, during the entire year, the rain falls for 152.9 days and collects up to 31.18" (792mm) of precipitation.

Snowfall

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

Daylight

In Sycamore, the average length of the day in September is 12h and 22min.
On the first day of September in Sycamore, sunrise is at 6:59 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:10 pm EDT.

Sunshine

The average sunshine in September is 8.4h.

UV index

In Sycamore, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 6 in September translates into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September in Sycamore?

In Sycamore, 84.9°F (29.4°C) is the average high-temperature and 68.2°F (20.1°C) is the average low-temperature during September. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in September is estimated at 95°F (35°C).

What is the average humidity in September in Sycamore?

In Sycamore, South Carolina, the average relative humidity in September is 75%.

How many days does it rain in September in Sycamore?

In Sycamore, South Carolina, in September, during 13.9 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

When it does not snow in Sycamore?

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

How many hours of daylight does Sycamore have in September?

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

When is the sunrise / sunset in September in Sycamore?

In September, on the first day of the month, sunrise is at 6:59 am and sunset at 7:49 pm. On the last day of the month, in Sycamore, South Carolina, sunrise is at 7:18 am and sunset at 7:10 pm EDT.

How long on average sun shines in September in Sycamore?

The average sunshine duration in September in Sycamore, South Carolina, is 8.4h.

How high is the UV index in September in Sycamore?

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health 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
Sycamore, SC

Average temperature in September - Sycamore, SC
  • Average high temperature in September: 84.9°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (55.4°F).

  • Average low temperature in September: 68.2°F

The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.9°F).

Average pressure in September
Sycamore, SC

Average pressure in September - Sycamore, SC
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in September
Sycamore, SC

Average wind speed in September - Sycamore, SC
  • Average wind speed in September: 5.9mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in September
Sycamore, SC

Average humidity in September - Sycamore, SC
  • Average humidity in September: 75%

The months with the highest relative humidity are August and December (76%).
The month with the lowest relative humidity is January (70%).

Average rainfall in September
Sycamore, SC

Average rainfall in September - Sycamore, SC
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is August (3.7").
The driest month (with the least rainfall) is November (1.38").

Average rainfall days in September
Sycamore, SC

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

The month with the highest number of rainy days is August (20.8 days).
The month with the least rainy days is November (6.6 days).

Average snowfall in September
Sycamore, SC

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

The month with the highest snowfall is February (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
Sycamore, SC

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

The months with the highest number of snowfall days are January and February (0.3 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
Sycamore, SC

Average daylight in September / Average sunshine in September - Sycamore, SC
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in September
Sycamore, SC

Average sunshine days in September - Sycamore, SC
  • Average sunshine days in September: 14.3 days

The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is August (7.3 days).

Average UV index in September
Sycamore, SC

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

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

Average cloud cover in September
Sycamore, SC

Average cloud cover in September - Sycamore, SC
  • Average cloud cover in September: 33

The months with the most cloud cover are February and December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in September
Sycamore, SC

Average visibility in September - Sycamore, 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).

Sycamore, South Carolina, USA

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