Charleston
South Carolina, USA
Long-term weather forecast
Long-term weather forecast

October weather forecast and climate
Charleston, SC

Trees along both sides of a street in Charleston, South Carolina, in the twilight light
Trees along both sides of a street in Charleston, South Carolina, in the twilight light
Octubre, the same as Septiembre, is another warm autumn month in Charleston, South Carolina, with temperature in the range of an average low of 56.8°F (13.8°C) and an average high of 77.2°F (25.1°C).

Temperature

In Octubre, the average high-temperature slightly decreases, from 84.7°F (29.3°C) in Septiembre, to a still warm 77.2°F (25.1°C). In Octubre, the average low-temperature is 56.8°F (13.8°C).

Humidity

In Octubre, the average relative humidity is 74.1%.

Rainfall

In Octubre, the rain falls for 7.3 days. Throughout Octubre, 3.75" (95.3mm) of precipitation is accumulated. Throughout the year, there are 112.7 rainfall days, and 51.03" (1296.1mm) of precipitation is accumulated.

Snowfall

Enero, Marzo through Noviembre are months without snowfall.

Ocean temperature

In Charleston, in Octubre, the average water temperature is 77.9°F (25.5°C).
Note: For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In Octubre, the average length of the day in Charleston is 11.3h.

Sunshine

In Charleston, the average sunshine in Octubre is 7.2h.

UV index

In Charleston, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In Octubre, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in Octubre in Charleston?

The average high-temperature, in Octubre, in Charleston, South Carolina, is 77.2°F (25.1°C), while the average low-temperature is 56.8°F (13.8°C).

What is the average humidity in Octubre in Charleston?

In Charleston, the average relative humidity in Octubre is 74.1%.

How much does it rain in Charleston in Octubre?

In Charleston, South Carolina, during Octubre, the rain falls for 7.3 days and regularly aggregates up to 3.75" (95.3mm) of precipitation.

When it does not snow in Charleston?

Enero, Marzo through Noviembre are months without snowfall.

How warm is the water in Octubre in Charleston?

In Charleston, the average seawater temperature in Octubre is 77.9°F (25.5°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in Octubre in Charleston?

In Octubre, the average length of the day is 11.3h.

How many hours of sunshine does Charleston have in Octubre?

In Charleston, the average sunshine in Octubre is 7.2h.

How high is the UV index in Octubre in Charleston?

The average daily maximum UV index in Octubre in Charleston is 6. A UV Index reading of 6 to 7 represents a high health threat from the exposure to the Sun's UV radiation.
Average temperature in October - Charleston, SC
  • Average high temperature in October: 77.1°F

The warmest month (with the highest average high temperature) is July (91.1°F).
The month with the lowest average high temperature is January (59°F).

  • Average low temperature in October: 56.8°F

The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (37.5°F).

Average humidity in October - Charleston, SC
  • Average humidity in October: 74.1%

The month with the highest relative humidity is August (78.9%).
The month with the lowest relative humidity is February (67.4%).

Average rainfall in October - Charleston, SC
  • Average rainfall in October: 3.8"

The wettest month (with the highest rainfall) is August (7.2").
The driest month (with the lowest rainfall) is November (2.4").

Average rainfall days in October - Charleston, SC
  • Average rainfall days in October: 7.3 days

The month with the highest number of rainy days is August (13.2 days).
The month with the lowest number of rainy days is November (7 days).

Average snowfall in October - Charleston, SC
  • Average snowfall in October: 0"

The month with the highest snowfall is December (0.5").
Months with the lowest snowfall are January, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in October - Charleston, SC
  • Average snowfall days in October: 0 days

Months with the highest number of snowfall days are February and December (0.2 days).
Months with the lowest number of snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average sea temperature in October - Charleston, SC
  • Average sea temperature in October: 77.9°F

The best month for swimming (with the highest average sea temperature) is August (83.5°F).
The coldest month (with the lowest average sea temperature) is February (61.9°F).

Average daylight in October / Average sunshine in October - Charleston, SC
  • Average daylight in October: 11.3h

The month with the longest days is June (Average daylight: 14.3h).
The month with shortest days is December (Average daylight: 10h).

  • Average sunshine in October: 7.2h

The month with most sunshine is May (Average sunshine: 9.5h).
The month with least sunshine is December (Average sunshine: 5.5h).

Average UV index in October - Charleston, SC
  • Average UV index in October: 6

Months with the highest UV index are June, July and August (UV index 10).
Months with the lowest UV index are January and December (UV index 3).