Charleston weather in October
Temperature, sea and sunshine in October: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in October
Good
Best time to visit: May – October
What is the weather like in Charleston in October?
In October, Charleston is warm: daytime highs average 24 °C, and nights cool down to about 17 °C. The sea averages 23.9 °C – pleasant for swimming. Expect around 6 hours of sunshine a day. Rain falls on about 7 days, adding up to 90 mm. All in all, October is a good month for a holiday in Charleston.
October compared
How the weather changes from September to November. Tap a month to open it.
| SeptemberSep | OctoberOct | NovemberNov | |
|---|---|---|---|
| Score | 77 | 79 | 37 |
| Day | 28° | 24° | 19° |
| Night | 22° | 17° | 12° |
| Sea | 27° | 24° | 20° |
| Sun | 6 h | 6 h | 6 h |
| Rain days | 13 | 7 | 7 |
More details for October
- Daylight
- 11 h 25 min07:23 – 18:48
- UV index
- 6 · highclear sky, noon (estimate)All months
- Muggy days
- 11 daysdew point 18 °C or moreAll months
- Wind
- 18 km/haverage daily peakAll months
- Cloud cover
- 43 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC−4America/New_York
How the score comes together
- Temperatureweight 35 %80 %
- Seaweight 25 %99 %
- Sunshineweight 20 %57 %
- Few rainy daysweight 20 %76 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Swimwear
- Sunscreen
Charleston in October: quick answers
Is Charleston hot in October?
Warm rather than hot: in October, daytime highs in Charleston average 24 °C and nights cool to about 17 °C.
Can you swim in Charleston in October?
Yes. In October the sea averages 23.9 °C – pleasant for swimming.
Does it rain much in Charleston in October?
Rain falls on about 7 days, adding up to 90 mm.
Charleston month by month
The whole year in CharlestonAll destinations: USAWhere to go in OctoberSea temperature in October
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences