South Dewees Island Weather Forecast

    • 57
    • 70

    Decreasing Clouds

    • 36
    • 65

    Partly Sunny

    • 37
    • 50

    Partly Sunny

    • 44
    • 56

    Partly Sunny

    • 44
    • 59

    Chance Rain Showers

    • 34
    • 55

    Chance Rain Showers

Today 10 Jan Charleston

Mostly cloudy in the Morning, then becoming partly sunny. Widespread fog in the morning. Highs in the mid 70s, except around 70 near the coast. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 10 Jan Charleston

Mostly cloudy. Widespread dense fog. Lows in the upper 50s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Dewees Island Temperature Statistics

January Temperature

Mount Pleasant Regional-Faison Field (5 miles)

  • Lowest 1 January, 2026

    39.2 °F

  • Average January

    53.9 °F

  • Highest 7 January, 2026

    71.6 °F

Climate (2021–Present)

Mount Pleasant Regional-Faison Field (5 miles)

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  • Average Low 2021–2026

    58.3 °F

  • Average 2021–2026

    66.3 °F

  • Average High 2021–2026

    75.3 °F
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