Climate almanac
Sumter
South Carolina, United States · 33.92°, -80.34°
What is the weather like in Sumter in May?
In May, Sumter is typically 83°F (28°C) during the day and 64°F (18°C) at night. The month brings about 4.0 in (103 mm) of precipitation in total.
- Average high83°F (28°C)
- Average low64°F (18°C)
- Precipitation4.0 in (103 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)