Kiawah and Seabrook Islands Weather Forecast

    • 56
    • 67

    Rain Showers

    • 40
    • 65

    Becoming Sunny

    • 44
    • 60

    Mostly Sunny

    • 41
    • 64

    Mostly Sunny

    • 40
    • 54

    Mostly Sunny

    • 48
    • 62

    Mostly Sunny

    • 49
    • 65

    Mostly Sunny

Today 18 Dec Charleston

Showers with a chance of Thunderstorms. Highs in the upper 60s. Southeast Winds around 10 Mph. Chance of rain 90 percent.

Tonight 18 Dec Charleston

Rain, mainly this evening. Patchy fog. Lows in the upper 50s. South Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Kiawah and Seabrook Islands Temperature Statistics

December Temperature

Charleston Executive Airport (9.9 miles)

  • Lowest 15 December, 2025

    23 °F

  • Average December

    47.8 °F

  • Highest 14 December, 2025

    71.6 °F

Climate (2020–Present)

Charleston Executive Airport (9.9 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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