South Dewees Island Weather Forecast
- 58
- 69
Mostly Cloudy
- 59
- 71
Mostly Cloudy
- 60
- 71
Mostly Cloudy
- 60
- 72
Chance Rain Showers
- 60
- 72
Chance Rain Showers
- 61
- 72
Partly Sunny
Today 5 Mar Charleston
Areas of dense fog in the morning. Mostly sunny. Highs in the mid 70s, except around 70 near the coast. South Winds around 5 Mph.
Tonight 5 Mar Charleston
Partly cloudy in the Evening, then becoming mostly cloudy. Patchy fog after midnight. Lows in the upper 50s. South Winds around 5 Mph.
South Dewees Island Temperature Statistics
March Temperature
Mount Pleasant Regional-Faison Field (5 miles)
Lowest 2 March, 2026
46.4 °FAverage March
55.1 °FHighest 1 March, 2026
68 °F
Climate (2021–Present)
Mount Pleasant Regional-Faison Field (5 miles)
Average Low 2021–2026
58.2 °FAverage 2021–2026
66.3 °FAverage High 2021–2026
75.3 °F