Sullivan's Island Weather Forecast

    • 65
    • 75

    Breezy

    • 64
    • 76

    Mostly Cloudy

    • 66
    • 77

    Mostly Cloudy

    • 68
    • 78

    Chance Rain Showers

    • 70
    • 77

    Rain Showers Likely

    • 68
    • 79

    Rain Showers Likely

Today 6 Oct Charleston

Mostly cloudy. Highs in the mid 70s. Northeast Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 6 Oct Charleston

Mostly cloudy. Lows in the lower 60s. Northeast Winds 15 to 20 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sullivan's Island Temperature Statistics

October Temperature

Mount Pleasant Regional-Faison Field (9.3 miles)

  • Lowest 1 October, 2026

    66.2 °F

  • Average October

    76.4 °F

  • Highest 2 October, 2026

    89.6 °F

Climate (2021–2026)

Mount Pleasant Regional-Faison Field (9.3 miles)

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  • Average Low 2021–2026

    58.4 °F

  • Average 2021–2026

    66.5 °F

  • Average High 2021–2026

    75.6 °F
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