Weather in Charleston, South Carolina, United States
Historical monthly conditions · 2021–2025
Monthly averages
Average daily air-temperature lows/highs and peak wind gusts. Rain is the average monthly total.
| Month | Avg low | Avg high | Rain | Cloud cover | Avg peak gust |
|---|---|---|---|---|---|
| January | 6°C | 15°C | 83.0 mm | 50% | 39.2 km/h |
| February | 9°C | 18°C | 66.4 mm | 55% | 39.4 km/h |
| March | 12°C | 21°C | 97.5 mm | 52% | 42.5 km/h |
| April | 15°C | 24°C | 76.2 mm | 44% | 40.8 km/h |
| May | 19°C | 27°C | 80.4 mm | 55% | 39.6 km/h |
| June | 23°C | 30°C | 120.5 mm | 58% | 38.0 km/h |
| July | 25°C | 31°C | 199.9 mm | 68% | 34.9 km/h |
| August | 24°C | 30°C | 207.3 mm | 62% | 33.3 km/h |
| September | 21°C | 28°C | 116.9 mm | 53% | 34.8 km/h |
| October | 16°C | 24°C | 78.2 mm | 40% | 33.9 km/h |
| November | 11°C | 20°C | 47.0 mm | 46% | 35.0 km/h |
| December | 8°C | 17°C | 81.8 mm | 51% | 36.0 km/h |
Weather match by month
Feels like 15°C–30°C · cloud ≤60% · rain ≤0.1 mm/h · gust ≤50 km/h
Feels-like temperature accounts for humidity and wind in shade. Percentages cover 08:00–20:00 local solar time.
| Month | Match rate | |
|---|---|---|
| January | 4.1% | |
| February | 17.2% | |
| March | 21.0% | |
| April | 43.2% | |
| May | 36.7% | |
| June | 17.4% | |
| July | 2.5% | |
| August | 7.2% | |
| September | 31.4% | |
| October | 51.2% | |
| November | 27.6% | |
| December | 13.0% |
About this location and data
- Population
- 132,609
- Elevation
- 5 m
- Coordinates
- 32.78°N, 79.93°W
2021-2025 recent-weather sample (not a 30-year normal).
How the weather scores are calculated