Climate almanac
Charleston
South Carolina, United States · 32.78°, -79.93°
What is the weather like in Charleston in May?
In May, Charleston is typically 81°F (27°C) during the day and 68°F (20°C) at night. The month brings about 3.6 in (92 mm) of precipitation in total.
- Average high81°F (27°C)
- Average low68°F (20°C)
- Precipitation3.6 in (92 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)