South Dewees Island Weather Forecast

    • 54
    • 80

    Decreasing Clouds

    • 55
    • 73

    Mostly Sunny

    • 59
    • 71

    Mostly Sunny

    • 61
    • 76

    Mostly Sunny

    • 63
    • 79

    Mostly Sunny

    • 65
    • 80

    Partly Sunny

    • 66
    • 81

    Chance Rain Showers

Today 19 Apr Charleston

Partly sunny. Highs in the lower 80s.

Tonight 19 Apr Charleston

Mostly cloudy. Cooler with Lows in the lower 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Dewees Island Temperature Statistics

April Temperature

Mount Pleasant Regional-Faison Field (5 miles)

  • Lowest 9 April, 2026

    46.4 °F

  • Average April

    66.9 °F

  • Highest 17 April, 2026

    87.8 °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

    66.4 °F

  • Average High 2021–2026

    75.4 °F
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