Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average sea temperature in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
The commencement of October in Charleston includes a gentle temperature shift, with the average high-temperature dropping a bit from a moderately hot 83.5°F in September to a still warm 75.9°F. Charleston cools down to an average low-temperature of 64°F throughout the month of October.Humidity
In October, the average relative humidity in Charleston is 74%.Rainfall
In Charleston, in October, during 10.6 rainfall days, 3.11" of precipitation is typically accumulated. Throughout the year, in Charleston, there are 178.9 rainfall days, and 41.93" of precipitation is accumulated.Snowfall
February through November are months without snowfall in Charleston.Ocean temperature
In Charleston, in October, the average water temperature is 77.9°F.Note: Water temperatures between 77°F and 84.2°F are ideal for all water activities, offering enjoyment without causing discomfort over extended periods.
Daylight
The average length of the day in October is 11h and 22min.On the first day of the month, sunrise is at 7:13 am and sunset at 7:04 pm. On the last day of October, sunrise is at 7:36 am and sunset at 6:30 pm EDT.
Sunshine
The average sunshine in October in Charleston is 6.7h.UV index
The average daily maximum UV index in October in Charleston is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: In October, the maximum UV index of 5 suggests this advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Heads up! UV intensity is amplified by reflections from water and sand.
Frequently asked questions
What are the temperatures in Charleston in October?
What is the average humidity in October in Charleston?
How much does it rain in Charleston in October?
When it does not snow in Charleston?
What is the water temperature in October in Charleston?
How many hours of daylight does Charleston have in October?
What time are sunrise and sunset in October in Charleston?
How many hours of sunshine does Charleston have in October?
What is the UV index reading in October in Charleston?
Average temperature in October
Charleston, SC
- Average high temperature in October: 75.9°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (57°F).
- Average low temperature in October: 64°F
The month with the highest average low temperature is July (77.4°F).
The coldest month (with the lowest average low temperature) is January (44.4°F).
Average pressure in October
Charleston, SC
- Average pressure in October: 30.02"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in October
Charleston, SC
- Average wind speed in October: 8.6mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is August (7.5mph).
Average humidity in October
Charleston, SC
- Average humidity in October: 74%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are January and March (73%).
Average rainfall in October
Charleston, SC
- Average rainfall in October: 3.11"
The wettest month (with the highest rainfall) is August (7.13").
The driest month (with the least rainfall) is January (1.42").
Average rainfall days in October
Charleston, SC
- Average rainfall days in October: 10.6 days
The month with the highest number of rainy days is August (24.8 days).
The month with the least rainy days is November (8.7 days).
Average snowfall in October
Charleston, SC
- Average snowfall in October: 0"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, 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
The month with the highest number of snowfall days is January (0.4 days).
The months with the least 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: 11h 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 October: 6h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in October
Charleston, SC
- Average sunshine days in October: 18.9 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is August (3.8 days).
Average UV index in October
Charleston, SC
- Average UV index in October: 5
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in October
Charleston, SC
- Average cloud cover in October: 27
The months with the most cloud cover are February and December (Cloud cover 39).
The months with the least cloud cover are June and July (Cloud cover 26).
Average visibility in October
Charleston, SC
- Average visibility in October: 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).
Charleston, South Carolina, USA
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