Weather by month
Charleston
South Carolina
Charleston keeps a subtropical schedule: a spring that goes on for months, a summer that settles over the peninsula like a wet towel, and a winter that barely bothers showing up.
The best time to come
April and the back half of autumn are the ones to aim for — long light, little rain, and evenings you can spend on a piazza without swatting at anything. Spoleto in late May is worth the trade if you would rather have the festival than the comfortable air.
The year at a glance
| Month | Highs / lows | Temperature range | Wet days | Water |
|---|---|---|---|---|
| January | 58° / 44° | 5 | 53° | |
| February | 60° / 46° | 5 | 54° | |
| March | 66° / 52° | 5 | 61° | |
| April ● | 72° / 60° | 5 | 68° | |
| May | 79° / 68° | 4 | 76° | |
| June | 84° / 74° | 7 | 82° | |
| July | 88° / 77° | 8 | 86° | |
| August | 86° / 77° | 8 | 84° | |
| September | 83° / 73° | 6 | 81° | |
| October ● | 76° / 63° | 5 | 73° | |
| November ● | 67° / 53° | 4 | 64° | |
| December | 61° / 47° | 5 | 57° |
Charleston facts
- Sits at about 10 ft above sea level.
- 44.3 in of rain in a typical year, with August the wettest month.
- July runs hottest (88° afternoons); January nights are the coldest (44°).