Sullivan's Island Weather Forecast

    • 50
    • 56

    Mostly Cloudy

    • 56
    • 64

    Partly Sunny

    • 60
    • 69

    Mostly Sunny

    • 54
    • 75

    Partly Sunny

    • 50
    • 62

    Partly Sunny

    • 54
    • 63

    Partly Sunny

Today 24 Mar Charleston

Mostly cloudy this Morning, then becoming partly sunny. Much cooler with Highs in the upper 50s. Northeast Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 24 Mar Charleston

Partly cloudy. Lows in the upper 40s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sullivan's Island Temperature Statistics

March Temperature

Mount Pleasant Regional-Faison Field (9.3 miles)

  • Lowest 18 March, 2026

    33.8 °F

  • Average March

    62.9 °F

  • Highest 21 March, 2026

    86 °F

Climate (2021–Present)

Mount Pleasant Regional-Faison Field (9.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    58.3 °F

  • Average 2021–2026

    66.4 °F

  • Average High 2021–2026

    75.4 °F
Get WillyWeather+ to remove ads