Sullivan's Island Weather Forecast

    • 66
    • 75

    Decreasing Clouds

    • 60
    • 79

    Sunny

    • 67
    • 74

    Mostly Sunny

    • 71
    • 79

    Mostly Sunny

    • 71
    • 80

    Partly Sunny

    • 71
    • 80

    Mostly Sunny

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sullivan's Island Temperature Statistics

May Temperature

Mount Pleasant Regional-Faison Field (9.3 miles)

  • Lowest 4 May, 2026

    50 °F

  • Average May

    66.8 °F

  • Highest 6 May, 2026

    82.4 °F

Climate (2021–Present)

Mount Pleasant Regional-Faison Field (9.3 miles)

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  • Average Low 2021–2026

    58.3 °F

  • Average 2021–2026

    66.3 °F

  • Average High 2021–2026

    75.4 °F
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