Saint Simons Sound Weather Forecast

    • 70
    • 86

    Decreasing Clouds

    • 71
    • 84

    Mostly Sunny

    • 73
    • 84

    Mostly Sunny

    • 74
    • 84

    Partly Sunny

    • 74
    • 82

    Chance Thunderstorms

    • 73
    • 82

    Chance Thunderstorms

    • 73
    • 83

    Chance Thunderstorms

Today 17 Sep Coastal Glynn

Mostly sunny. Highs in the upper 80s. Southwest Winds around 5 Mph, becoming southeast this afternoon.

Tonight 17 Sep Coastal Glynn

Partly cloudy. Lows in the upper 60s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Saint Simons Sound Temperature Statistics

September Temperature

Brunswick, Malcolm McKinnon Airport (1.9 miles)

  • Lowest 10 September, 2025

    64.4 °F

  • Average September

    76.7 °F

  • Highest 5 September, 2025

    86 °F

Climate (2020–Present)

Brunswick, Malcolm McKinnon Airport (1.9 miles)

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  • Average Low 2020–2025

    63.1 °F

  • Average 2020–2025

    70.2 °F

  • Average High 2020–2025

    77.9 °F
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