Saint Simons Island Weather Forecast

    • 50
    • 60

    Rain Showers Likely

    • 50
    • 61

    Rain Showers Likely

    • 44
    • 62

    Mostly Cloudy

    • 43
    • 56

    Partly Sunny

    • 47
    • 65

    Mostly Sunny

    • 54
    • 67

    Partly Sunny

    • 43
    • 70

    Partly Sunny

Today 6 Dec Coastal Glynn

Cloudy. A chance of Showers late this Morning, then Showers likely this afternoon. Cooler with Highs in the upper 50s. Northwest Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 6 Dec Coastal Glynn

Cloudy. A chance of Showers this Evening, then Showers likely after midnight. Lows in the upper 40s. North Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Saint Simons Island Temperature Statistics

December Temperature

Brunswick, Malcolm McKinnon Airport (0.6 miles)

  • Lowest 4 December, 2025

    41 °F

  • Average December

    57.1 °F

  • Highest 2 December, 2025

    73.4 °F

Climate (2020–Present)

Brunswick, Malcolm McKinnon Airport (0.6 miles)

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  • Average Low 2020–2025

    63 °F

  • Average 2020–2025

    70.2 °F

  • Average High 2020–2025

    77.9 °F
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