South Dewees Island Weather Forecast

    • 68
    • 77

    Mostly Cloudy

    • 62
    • 83

    Rain Showers Likely

    • 64
    • 74

    Partly Sunny

    • 67
    • 78

    Chance Rain Showers

    • 61
    • 82

    Mostly Sunny

    • 66
    • 79

    Mostly Sunny

    • 69
    • 82

    Partly Sunny

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Dewees Island Temperature Statistics

May Temperature

Mount Pleasant Regional-Faison Field (5 miles)

  • Lowest 4 May, 2026

    50 °F
  • Average May

    65.4 °F
  • Highest 6 May, 2026

    82.4 °F

Climate (2021–Present)

Mount Pleasant Regional-Faison Field (5 miles)

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  • Average Low 2021–2026

    58.3 °F
  • Average 2021–2026

    66.3 °F
  • Average High 2021–2026

    75.4 °F
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