Cape Romain Harbor - Mill Island Weather Forecast

    • 45
    • 56

    Mostly Sunny

    • 59
    • 64

    Breezy

    • 45
    • 67

    Rain Showers

    • 42
    • 57

    Mostly Sunny

    • 52
    • 60

    Mostly Cloudy

    • 50
    • 65

    Chance Rain Showers

    • 43
    • 59

    Partly Sunny

Today 3 Mar Charleston

Sunny. Highs in the upper 50s. East Winds 5 to 10 Mph.

Tonight 3 Mar Charleston

Mostly clear. Lows in the mid 40s. East Winds around 5 Mph.

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Cape Romain Harbor - Mill Island Temperature Statistics

March Temperature

Georgetown County Airport (19.3 miles)

  • Lowest 1 March, 2025

    46.4 °F

  • Average March

    59.6 °F

  • Highest 1 March, 2025

    77 °F

Climate (2020–Present)

Georgetown County Airport (19.3 miles)

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  • Average Low 2020–2025

    54.7 °F

  • Average 2020–2025

    64 °F

  • Average High 2020–2025

    74.1 °F
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