Click on a day for an hourly weather forecast
The temperatures in Charleston in October are comfortable with low of 18°C and and high up to 25°C.
You can expect about 3 to 8 days of rain in Charleston during the month of October. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Charleston in October 2025.
If you’re planning to visit Charleston in the near future, we highly recommend that you review the 14 day weather forecast for Charleston before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 14° / 7° | 5 | 25 | 1 | 91 mm | Good | Charleston in January |
| February | 16° / 9° | 6 | 23 | 0 | 120 mm | Good | Charleston in February |
| March | 19° / 12° | 6 | 25 | 0 | 131 mm | Good | Charleston in March |
| April | 23° / 16° | 6 | 24 | 0 | 131 mm | Perfect | Charleston in April |
| May | 26° / 20° | 8 | 23 | 0 | 165 mm | Good | Charleston in May |
| June | 30° / 24° | 11 | 19 | 0 | 217 mm | Ok | Charleston in June |
| July | 31° / 25° | 14 | 17 | 0 | 260 mm | Ok | Charleston in July |
| August | 31° / 25° | 15 | 16 | 0 | 346 mm | Ok | Charleston in August |
| September | 29° / 23° | 8 | 22 | 0 | 229 mm | Ok | Charleston in September |
| October | 25° / 18° | 5 | 26 | 0 | 161 mm | Perfect | Charleston in October |
| November | 19° / 12° | 4 | 26 | 0 | 87 mm | Good | Charleston in November |
| December | 16° / 10° | 6 | 25 | 0 | 130 mm | Good | Charleston in December |