September weather forecast
Clearwater, SC

Share

Weather in September

September, the first month of the autumn in Clearwater, is also a moderately hot month, with an average temperature fluctuating between 85.3°F (29.6°C) and 67.6°F (19.8°C).

Temperature

The transition to September results in a modest reduction in average high-temperature, moving from a tropical 90.9°F (32.7°C) in August to a moderately hot 85.3°F (29.6°C). In the month of September, Clearwater experiences an average low-temperature of 67.6°F (19.8°C).

Heat index

In September, the average heat index is evaluated at a hot 93.2°F (34°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. 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 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.

Humidity

In Clearwater, the average relative humidity in September is 70%.

Rainfall

September is the month with the least rainfall in Clearwater, South Carolina. Rain falls for 11 days and accumulates 1.42" (36mm) of precipitation.

Snowfall

April through November are months without snowfall in Clearwater.

Daylight

In Clearwater, South Carolina, the average length of the day in September is 12h and 22min.
On the first day of September in Clearwater, sunrise is at 7:02 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:12 pm EDT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

In Clearwater, South Carolina, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high daily UV index of 6 during September translates into the following directions:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
[Resources]

Frequently asked questions

How hot does it get in Clearwater in September?

In September, the average high-temperature and low-temperature in Clearwater, South Carolina, are 85.3°F (29.6°C) and 67.6°F (19.8°C) respectively. In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is evaluated at 93.2°F (34°C).

What is the average humidity in September in Clearwater?

In Clearwater, South Carolina, the average relative humidity in September is 70%.

What is the driest month in Clearwater?

September is the month with the least rainfall in Clearwater, South Carolina. Rain falls for 11 days and accumulates 1.42" (36mm) of precipitation.

How many days does it rain in September in Clearwater?

In Clearwater, South Carolina, during September, the rain falls for 11 days and regularly aggregates up to 1.42" (36mm) of precipitation.

When it does not snow in Clearwater?

In Clearwater, snow does not fall in April through November.

What is the average length of the day in September in Clearwater?

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

What time are sunrise and sunset in September in Clearwater?

In September, on the first day of the month, sunrise is at 7:02 am and sunset at 7:52 pm. On the last day of the month, in Clearwater, sunrise is at 7:21 am and sunset at 7:12 pm EDT.

How long on average sun shines in September in Clearwater?

The average sunshine duration in September is 8.5h.

What is the UV index intensity in September in Clearwater?

In Clearwater, South Carolina, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from 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
Clearwater, SC

Average temperature in September - Clearwater, SC
  • Average high temperature in September: 85.3°F

The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (53.4°F).

  • Average low temperature in September: 67.6°F

The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).

[Resources]

Average pressure in September
Clearwater, SC

Average pressure in September - Clearwater, 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 (29.98"Hg).

[Resources]

Average wind speed in September
Clearwater, SC

Average wind speed in September - Clearwater, SC
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

[Resources]

Average humidity in September
Clearwater, SC

Average humidity in September - Clearwater, SC
  • Average humidity in September: 70%

The month with the highest relative humidity is December (74%).
The month with the lowest relative humidity is July (68%).

[Resources]

Average rainfall in September
Clearwater, SC

Average rainfall in September - Clearwater, SC
  • Average rainfall in September: 1.42"

The wettest month (with the highest rainfall) is December (2.95").
The driest month (with the least rainfall) is September (1.42").

[Resources]

Average rainfall days in September
Clearwater, SC

Average rainfall days in September - Clearwater, SC
  • Average rainfall days in September: 11 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is November (7.2 days).

[Resources]

Average snowfall in September
Clearwater, SC

Average snowfall in September - Clearwater, 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").

[Resources]

Average snowfall days in September
Clearwater, SC

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

The months with the highest number of snowfall days are January, February and March (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

[Resources]

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

Average daylight in September / Average sunshine in September - Clearwater, 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 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 24min).

[Resources]

Average sunshine days in September
Clearwater, SC

Average sunshine days in September - Clearwater, SC
  • Average sunshine days in September: 17.1 days

The month with the most sunshine days is October (22 days).
The month with the least sunshine days is July (12.4 days).

[Resources]

Average UV index in September
Clearwater, SC

Average UV index in September - Clearwater, 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).

[Resources]

Average cloud cover in September
Clearwater, SC

Average cloud cover in September - Clearwater, SC
  • Average cloud cover in September: 30

The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 27).

[Resources]

Average visibility in September
Clearwater, SC

Average visibility in September - Clearwater, 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).

[Resources]

Clearwater, South Carolina, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location