Intracoastal Waterway - South Island Ferry Weather Forecast

    • 66
    • 79

    Mostly Cloudy

    • 65
    • 80

    Mostly Cloudy

    • 66
    • 81

    Partly Sunny

    • 65
    • 81

    Mostly Sunny

    • 65
    • 80

    Mostly Sunny

    • 66
    • 80

    Mostly Sunny

Today 9 Sep Coastal Georgetown

Partly sunny. Highs in the upper 70s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 9 Sep Coastal Georgetown

Mostly cloudy. Lows in the mid 60s. North Winds 10 to 15 Mph.

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Intracoastal Waterway - South Island Ferry Temperature Statistics

September Temperature

Georgetown County Airport (5 miles)

  • Lowest 1 September, 2025

    59 °F

  • Average September

    72.3 °F

  • Highest 5 September, 2025

    87.8 °F

Climate (2020–Present)

Georgetown County Airport (5 miles)

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  • Average Low 2020–2025

    54.7 °F

  • Average 2020–2025

    64 °F

  • Average High 2020–2025

    74.2 °F
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