South Dewees Island Weather Forecast
- 44
- 69
Rain Showers
- 53
- 65
Mostly Sunny
- 59
- 70
Mostly Sunny
- 63
- 73
Rain Showers Likely
- 42
- 72
Rain Showers Likely
- 41
- 55
Partly Sunny
Today 12 Mar Charleston
Partly sunny in the Morning, then becoming mostly cloudy. A slight chance of Thunderstorms. A chance of Showers in the Morning, then Showers in the afternoon. Highs in the lower 70s. Temperature falling to around 60 in the afternoon. Southwest Winds 10 to 15 Mph, becoming northwest 15 to 20 Mph in the afternoon. Gusts up to 35 Mph. Chance of rain 90 percent.
Tonight 12 Mar Charleston
Mostly cloudy. Lows in the mid 60s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.
South Dewees Island Temperature Statistics
March Temperature
Mount Pleasant Regional-Faison Field (5 miles)
Lowest 2 March, 2026
46.4 °FAverage March
63.6 °FHighest 9 March, 2026
82.4 °F
Climate (2021–Present)
Mount Pleasant Regional-Faison Field (5 miles)
Average Low 2021–2026
58.3 °FAverage 2021–2026
66.4 °FAverage High 2021–2026
75.4 °F