Charleston Harbor - Patriots Point Weather Forecast

    • 65
    • 80

    Partly Sunny

    • 65
    • 78

    Mostly Sunny

    • 70
    • 80

    Partly Sunny

    • 71
    • 81

    Partly Sunny

    • 71
    • 83

    Mostly Sunny

    • 71
    • 81

    Partly Sunny

Today 15 Sep Charleston

Mostly sunny. A slight chance of Showers in the afternoon. Highs in the lower 80s. North Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

Tonight 15 Sep Charleston

Mostly clear. Lows in the mid 60s. North Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Charleston Harbor - Patriots Point Temperature Statistics

September Temperature

Charleston Executive Airport (8.1 miles)

  • Lowest 1 September, 2025

    64.4 °F

  • Average September

    74.7 °F

  • Highest 7 September, 2025

    89.6 °F

Climate (2020–Present)

Charleston Executive Airport (8.1 miles)

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

  • Average Low 2020–2025

    59 °F

  • Average 2020–2025

    67.3 °F

  • Average High 2020–2025

    76.1 °F
Get WillyWeather+ to remove ads