Folly Beach Weather in May
Average highs run from 76°F on May 1 to 82°F on May 31, and lows from 64°F to 72°F. Normal precipitation for the month is 2.58 in over about 7 wet days.
May day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
May at a glance
- Average high
- 79°F
- Average low
- 68°F
- Precipitation
- 2.58 in
- Record high
- 100°FMay 27, 2019
- Record low
- 45°FMay 20, 1894
- Chance of a freeze
- 0%
- Days of 90°F or more
- 1.5
- Daylight
- 13 h 28 min to 14 h 09 min
- Cloud cover
- 50%
- Humidity
- 78%
- Dew point
- 66°F
- Wind
- 12.3 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| May 1 | 76°F | 64°F | 91°F 1990 | 46°F 1908 | 22% | 0% |
| May 2 | 76°F | 64°F | 91°F 1906 | 49°F 1939 | 22% | 0% |
| May 3 | 77°F | 65°F | 95°F 1959 | 46°F 1939 | 22% | 0% |
| May 4 | 77°F | 65°F | 91°F 1902 | 48°F 1940 | 22% | 0% |
| May 5 | 77°F | 65°F | 93°F 2014 | 47°F 1940 | 22% | 0% |
| May 6 | 77°F | 66°F | 95°F 1952 | 51°F 2016 | 22% | 0% |
| May 7 | 77°F | 66°F | 93°F 1977 | 51°F 1992 | 22% | 0% |
| May 8 | 78°F | 66°F | 93°F 1899 | 49°F 1958 | 22% | 0% |
| May 9 | 78°F | 66°F | 93°F 1936 | 49°F 1917 | 22% | 0% |
| May 10 | 78°F | 67°F | 92°F 1926 | 47°F 1906 | 22% | 0% |
| May 11 | 78°F | 67°F | 94°F 1955 | 52°F 1966 | 22% | 0% |
| May 12 | 78°F | 67°F | 96°F 1896 | 53°F 1924 | 23% | 0% |
| May 13 | 79°F | 67°F | 93°F 1899 | 50°F 1917 | 23% | 0% |
| May 14 | 79°F | 68°F | 95°F 1933 | 51°F 1917 | 23% | 0% |
| May 15 | 79°F | 68°F | 94°F 1935 | 51°F 1917 | 23% | 0% |
| May 16 | 79°F | 68°F | 96°F 1915 | 53°F 1926 | 24% | 0% |
| May 17 | 79°F | 68°F | 94°F 1899 | 54°F 1984 | 24% | 0% |
| May 18 | 79°F | 69°F | 98°F 1899 | 52°F 2009 | 24% | 0% |
| May 19 | 80°F | 69°F | 93°F 1962 | 53°F 2002 | 25% | 0% |
| May 20 | 80°F | 69°F | 95°F 1938 | 45°F 1894 | 25% | 0% |
| May 21 | 80°F | 69°F | 99°F 1938 | 51°F 1894 | 25% | 0% |
| May 22 | 80°F | 70°F | 95°F 1938 | 54°F 1895 | 26% | 0% |
| May 23 | 80°F | 70°F | 97°F 1956 | 55°F 1895 | 26% | 0% |
| May 24 | 81°F | 70°F | 98°F 1953 | 53°F 1931 | 26% | 0% |
| May 25 | 81°F | 70°F | 95°F 1912 | 54°F 1979 | 27% | 0% |
| May 26 | 81°F | 71°F | 99°F 1953 | 50°F 1979 | 27% | 0% |
| May 27 | 81°F | 71°F | 100°F 2019 | 53°F 1961 | 27% | 0% |
| May 28 | 81°F | 71°F | 98°F 2019 | 57°F 1934 | 28% | 0% |
| May 29 | 81°F | 71°F | 97°F 1898 | 58°F 1922 | 28% | 0% |
| May 30 | 82°F | 71°F | 98°F 1898 | 55°F 1971 | 29% | 0% |
| May 31 | 82°F | 72°F | 98°F 1953 | 51°F 1984 | 29% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- May 1
- sunrise 6:33 AM, sunset 8:01 PM
- May 31
- sunrise 6:13 AM, sunset 8:22 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00013782 (Charleston City), public domain. Records: NOAA GHCN-Daily, station USW00013782, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.