Sullivan's Island Weather Forecast

    • 68
    • 77

    Increasing Clouds

    • 70
    • 77

    Partly Sunny

    • 69
    • 78

    Rain Showers Likely

    • 65
    • 76

    Chance Rain Showers

    • 66
    • 76

    Chance Rain Showers

    • 66
    • 78

    Slight Chance Thunderstorms

    • 69
    • 78

    Partly Sunny

Today 1 May Charleston

Sunny. Highs in the lower 80s. Southwest Winds 5 to 10 Mph, increasing to south 15 to 20 Mph this afternoon.

Tonight 1 May Charleston

Mostly cloudy. Lows in the mid 60s. South Winds around 5 Mph.

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Sullivan's Island Temperature Statistics

May Temperature

Mount Pleasant Regional-Faison Field (9.3 miles)

  • Lowest

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  • Average May

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Climate (2020–Present)

Mount Pleasant Regional-Faison Field (9.3 miles)

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  • Average Low 2020–2025

    58.5 °F

  • Average 2020–2025

    66.4 °F

  • Average High 2020–2025

    75.4 °F
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