Cape Romain Harbor - Mill Island Weather Forecast

    • 62
    • 72

    Mostly Sunny

    • 61
    • 72

    Partly Sunny

    • 62
    • 72

    Mostly Sunny

    • 62
    • 74

    Mostly Sunny

    • 63
    • 74

    Partly Sunny

    • 64
    • 76

    Mostly Sunny

    • 66
    • 77

    Partly Sunny

Today 12 Apr Charleston

Sunny. Highs in the lower 80s, except in the mid 70s near the coast. Southeast Winds 5 to 10 Mph.

Tonight 12 Apr Charleston

Mostly clear. Lows around 60. Southeast Winds around 5 Mph.

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  • Temperature Real-Time

Cape Romain Harbor - Mill Island Temperature Statistics

April Temperature

Georgetown County Airport (19.3 miles)

  • Lowest 9 April, 2026

    42.8 °F

  • Average April

    63.4 °F

  • Highest 5 April, 2026

    82.4 °F

Climate (2021–Present)

Georgetown County Airport (19.3 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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