Sea Island Beach Weather Forecast

    • 62
    • 75

    Increasing Clouds

    • 63
    • 75

    Mostly Cloudy

    • 64
    • 77

    Mostly Sunny

    • 65
    • 78

    Partly Sunny

    • 66
    • 80

    Slight Chance Thunderstorms

    • 67
    • 81

    Chance Rain Showers

Today 21 Apr Coastal Glynn

Sunny. Highs around 80. Northwest Winds 5 to 10 Mph, becoming northeast 10 to 15 Mph with Gusts up to 25 Mph this afternoon.

Tonight 21 Apr Coastal Glynn

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 50s. East Winds 10 to 15 Mph, Diminishing to around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sea Island Beach Temperature Statistics

April Temperature

Brunswick, Malcolm McKinnon Airport (4.3 miles)

  • Lowest 11 April, 2026

    57.2 °F

  • Average April

    69.6 °F

  • Highest 17 April, 2026

    86 °F

Climate (2021–Present)

Brunswick, Malcolm McKinnon Airport (4.3 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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