Saint Simons Island Weather Forecast

    • 42
    • 53

    Mostly Sunny

    • 42
    • 65

    Mostly Cloudy

    • 30
    • 50

    Rain Showers Likely

    • 33
    • 52

    Mostly Sunny

    • 35
    • 51

    Partly Sunny

    • 44
    • 57

    Mostly Cloudy

Today 16 Jan Coastal Glynn

Sunny. Highs in the lower 50s. West Winds around 5 Mph, becoming south around 5 Mph in the afternoon.

Tonight 16 Jan Coastal Glynn

Mostly clear. Not as cool with Lows in the upper 30s. South Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Saint Simons Island Temperature Statistics

January Temperature

Brunswick, Malcolm McKinnon Airport (0.6 miles)

  • Lowest 12 January, 2026

    39.2 °F

  • Average January

    57.8 °F

  • Highest 10 January, 2026

    77 °F

Climate (2021–Present)

Brunswick, Malcolm McKinnon Airport (0.6 miles)

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

  • Average Low 2021–2026

    63 °F

  • Average 2021–2026

    70.3 °F

  • Average High 2021–2026

    78 °F
Get WillyWeather+ to remove ads