Winyah Bay - Marsh Islands Weather Forecast

    • 58
    • 63

    Mostly Cloudy

    • 35
    • 69

    Mostly Cloudy

    • 33
    • 48

    Mostly Sunny

    • 38
    • 52

    Mostly Sunny

    • 41
    • 56

    Partly Sunny

    • 46
    • 57

    Chance Rain

    • 47
    • 59

    Chance Rain

Today 28 Dec Coastal Georgetown

Mostly cloudy. Highs in the mid 60s. East Winds 5 to 10 Mph.

Tonight 28 Dec Coastal Georgetown

Mostly cloudy. Patchy fog. Near steady temperature in the upper 50s. South Winds 5 to 10 Mph, becoming southwest with Gusts up to 20 Mph after midnight.

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Winyah Bay - Marsh Islands Temperature Statistics

December Temperature

Georgetown County Airport (5.6 miles)

  • Lowest 15 December, 2025

    19.4 °F

  • Average December

    47 °F

  • Highest 24 December, 2025

    75.2 °F

Climate (2020–Present)

Georgetown County Airport (5.6 miles)

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  • Average Low 2020–2025

    54.5 °F

  • Average 2020–2025

    63.9 °F

  • Average High 2020–2025

    74.1 °F
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