United States of America
Charleston sees feels-like daytime highs peak around 38.6°C in August and nighttime lows bottom out near 7.4°C in January. August is the wettest month (~132 mm), while November is the driest (~61 mm). For sunshine, October leads with about 63% clear skies.
Based on mild feels-like temperatures and low rain chances, the most comfortable months are April, October, and November — expect around 17.5–25.8°C with roughly 27% chance of rain on a given day in April.
| Month | Low / High °C | Rain % | Rainfall | Clear skies | Wind |
|---|---|---|---|---|---|
| January | 7.4° / 16° | 27% | 81 mm | 53% | 17.1 kph |
| February | 8.9° / 18.3° | 26% | 80 mm | 53% | 17.4 kph |
| March | 12.9° / 21.9° | 28% | 85 mm | 57% | 17 kph |
| April☀ | 17.5° / 25.8° | 27% | 70 mm | 61% | 16 kph |
| May | 23° / 31.4° | 29% | 71 mm | 58% | 14.7 kph |
| June | 28.3° / 36.4° | 40% | 96 mm | 50% | 13.8 kph |
| July | 31.2° / 38.5° | 49% | 113 mm | 46% | 13.4 kph |
| August | 30.5° / 38.6° | 48% | 132 mm | 49% | 13 kph |
| September | 27° / 34° | 35% | 118 mm | 56% | 13.9 kph |
| October☀ | 19.5° / 27.9° | 24% | 90 mm | 63% | 15 kph |
| November☀ | 13.5° / 22.3° | 20% | 61 mm | 60% | 15.7 kph |
| December | 9.6° / 18.3° | 24% | 70 mm | 54% | 16.4 kph |
Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).
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