Saint Simons Island Weather Forecast

    • 49
    • 61

    Increasing Clouds

    • 51
    • 64

    Partly Sunny

    • 53
    • 69

    Mostly Cloudy

    • 47
    • 59

    Rain Showers Likely

    • 39
    • 61

    Rain Showers Likely

    • 32
    • 47

    Slight Chance Rain Showers

Today 21 Jan Coastal Glynn

Patchy frost in the morning. Mostly sunny. Highs in the lower 60s. Northeast Winds 5 to 10 Mph.

Tonight 21 Jan Coastal Glynn

Cloudy. Not as cool with Lows in the mid 40s. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Saint Simons Island Temperature Statistics

January Temperature

Brunswick, Malcolm McKinnon Airport (0.6 miles)

  • Lowest 16 January, 2026

    26.6 °F

  • Average January

    55.2 °F

  • Highest 10 January, 2026

    77 °F

Climate (2021–Present)

Brunswick, Malcolm McKinnon Airport (0.6 miles)

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  • Average Low 2021–2026

    63 °F

  • Average 2021–2026

    70.3 °F

  • Average High 2021–2026

    78 °F
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