Winyah Bay - Marsh Islands Weather Forecast

    • 49
    • 62

    Partly Sunny

    • 40
    • 60

    Chance Rain

    • 37
    • 45

    Rain

    • 35
    • 47

    Rain

    • 24
    • 42

    Partly Sunny

    • 28
    • 38

    Mostly Sunny

Today 22 Jan Coastal Georgetown

Partly sunny in the Morning, then clearing. Highs in the lower 60s. West Winds around 5 Mph.

Tonight 22 Jan Coastal Georgetown

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 40s. Southeast Winds around 5 Mph, becoming northeast after midnight.

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  • Temperature Real-Time

Winyah Bay - Marsh Islands Temperature Statistics

January Temperature

Georgetown County Airport (5.6 miles)

  • Lowest 16 January, 2026

    21.2 °F

  • Average January

    48.5 °F

  • Highest 9 January, 2026

    77 °F

Climate (2021–Present)

Georgetown County Airport (5.6 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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