South Dewees Island Weather Forecast
- 72
- 76
Rain Showers
- 69
- 83
Rain Showers
- 62
- 80
Rain Showers Likely
- 65
- 79
Mostly Sunny
- 67
- 82
Mostly Sunny
- 70
- 84
Partly Sunny
- 72
- 84
Partly Sunny
South Dewees Island Temperature Statistics
May Temperature
Mount Pleasant Regional-Faison Field (5 miles)
Lowest 4 May, 2026
50 °FAverage May
72.4 °FHighest 28 May, 2026
91.4 °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