Sullivan's Island Weather Forecast

    • 77
    • 85

    Partly Sunny

    • 78
    • 87

    Mostly Sunny

    • 80
    • 88

    Slight Chance Thunderstorms

    • 81
    • 88

    Slight Chance Thunderstorms

    • 81
    • 88

    Chance Thunderstorms

    • 81
    • 90

    Chance Thunderstorms

Today 1 Jul Charleston

Mostly sunny. Highs in the lower 90s, except in the upper 80s near the coast. East Winds 5 to 10 Mph.

Tonight 1 Jul Charleston

Mostly clear. Lows in the mid 70s. East Winds 5 to 10 Mph.

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Sullivan's Island Temperature Statistics

July Temperature

Mount Pleasant Regional-Faison Field (9.3 miles)

  • Lowest

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  • Average July

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Climate (2021–2026)

Mount Pleasant Regional-Faison Field (9.3 miles)

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  • Average Low 2021–2026

    58.3 °F

  • Average 2021–2026

    66.4 °F

  • Average High 2021–2026

    75.5 °F
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