Charleston Harbor - Hog Island Channel Weather Forecast

    • 30
    • 40

    Mostly Sunny

    • 40
    • 53

    Mostly Sunny

    • 50
    • 60

    Mostly Cloudy

    • 55
    • 66

    Chance Rain Showers

    • 43
    • 63

    Mostly Sunny

    • 51
    • 60

    Partly Sunny

Today 15 Dec Charleston

Sunny. Much cooler with Highs around 40. Northeast Winds 5 to 10 Mph.

Tonight 15 Dec Charleston

Clear. Lows in the mid 20s. North Winds around 5 Mph.

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Charleston Harbor - Hog Island Channel Temperature Statistics

December Temperature

Charleston Executive Airport (8.7 miles)

  • Lowest 9 December, 2025

    30.2 °F

  • Average December

    49 °F

  • Highest 13 December, 2025

    69.8 °F

Climate (2020–Present)

Charleston Executive Airport (8.7 miles)

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  • Average Low 2020–2025

    58.8 °F

  • Average 2020–2025

    67.1 °F

  • Average High 2020–2025

    75.9 °F
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