Intracoastal Waterway - South Island Ferry Weather Forecast

    • 75
    • 86

    Chance Thunderstorms

    • 75
    • 86

    Thunderstorms Likely

    • 75
    • 87

    Rain Showers Likely

    • 76
    • 90

    Chance Thunderstorms

    • 78
    • 93

    Chance Thunderstorms

    • 77
    • 93

    Chance Thunderstorms

    • 76
    • 92

    Chance Thunderstorms

Today 22 Jul Coastal Georgetown

Showers with Thunderstorms likely. Highs around 90. East Winds 5 to 10 Mph. Chance of rain 80 percent. Heat index Values up to 105.

Tonight 22 Jul Coastal Georgetown

Mostly cloudy with Showers and Thunderstorms likely in the Evening, then partly cloudy with a slight chance of Showers and Thunderstorms after midnight. Lows in the mid 70s. Northeast Winds 5 to 10 Mph. Chance of rain 70 percent.

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Intracoastal Waterway - South Island Ferry Temperature Statistics

July Temperature

Georgetown County Airport (5 miles)

  • Lowest 5 July, 2025

    69.8 °F

  • Average July

    79.4 °F

  • Highest 19 July, 2025

    95 °F

Climate (2020–Present)

Georgetown County Airport (5 miles)

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  • Average Low 2020–2025

    54.8 °F

  • Average 2020–2025

    64 °F

  • Average High 2020–2025

    74.3 °F
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