Intracoastal Waterway - South Island Ferry Weather Forecast

    • 53
    • 66

    Increasing Clouds

    • 60
    • 76

    Partly Sunny

    • 62
    • 78

    Mostly Sunny

    • 51
    • 80

    Slight Chance Thunderstorms

    • 52
    • 61

    Partly Sunny

    • 55
    • 67

    Partly Sunny

Today 20 Mar Coastal Georgetown

Sunny. Highs in the upper 60s. North Winds around 5 Mph, becoming east this afternoon.

Tonight 20 Mar Coastal Georgetown

Partly cloudy in the Evening, then clearing. Lows in the lower 50s. South Winds 5 to 10 Mph.

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Intracoastal Waterway - South Island Ferry Temperature Statistics

March Temperature

Georgetown County Airport (5 miles)

  • Lowest 18 March, 2026

    32 °F

  • Average March

    60.8 °F

  • Highest 11 March, 2026

    87.8 °F

Climate (2021–Present)

Georgetown County Airport (5 miles)

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  • Average Low 2021–2026

    54.5 °F

  • Average 2021–2026

    63.9 °F

  • Average High 2021–2026

    74.2 °F
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