Winyah Bay - Marsh Islands Weather Forecast

    • 33
    • 44

    Increasing Clouds

    • 35
    • 50

    Chance Rain

    • 21
    • 41

    Rain/Snow Likely

    • 22
    • 33

    Mostly Sunny

    • 27
    • 41

    Mostly Sunny

    • 32
    • 47

    Partly Sunny

Today 29 Jan Coastal Georgetown

Sunny in the Morning, then becoming partly sunny. Highs in the mid 40s. North Winds 5 to 10 Mph.

Tonight 29 Jan Coastal Georgetown

Mostly cloudy. Lows around 30. Northeast Winds around 5 Mph.

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Winyah Bay - Marsh Islands Temperature Statistics

January Temperature

Georgetown County Airport (5.6 miles)

  • Lowest 16 January, 2026

    21.2 °F

  • Average January

    47.2 °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

    63.8 °F

  • Average High 2021–2026

    74.1 °F
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