Saint Simons Island Weather Forecast

    • 73
    • 83

    Increasing Clouds

    • 73
    • 84

    Partly Sunny

    • 74
    • 83

    Mostly Sunny

    • 74
    • 83

    Partly Sunny

    • 74
    • 84

    Partly Sunny

    • 75
    • 85

    Chance Thunderstorms

Today 16 May Coastal Glynn

Mostly sunny. Not as cool with Highs in the mid 80s. East Winds 10 to 15 Mph.

Tonight 16 May Coastal Glynn

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Saint Simons Island Temperature Statistics

May Temperature

Brunswick, Malcolm McKinnon Airport (0.6 miles)

  • Lowest 4 May, 2026

    55.4 °F

  • Average May

    72.2 °F

  • Highest 11 May, 2026

    91.4 °F

Climate (2021–Present)

Brunswick, Malcolm McKinnon Airport (0.6 miles)

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  • Average Low 2021–2026

    63 °F

  • Average 2021–2026

    70.2 °F

  • Average High 2021–2026

    78 °F
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