Nassau River Entrance Weather Forecast

    • 68
    • 76

    Mostly Sunny

    • 66
    • 81

    Slight Chance Thunderstorms

    • 66
    • 72

    Mostly Sunny

    • 65
    • 78

    Sunny

    • 60
    • 77

    Sunny

    • 65
    • 71

    Mostly Sunny

    • 69
    • 74

    Mostly Sunny

Today 18 Oct Coastal Duval

Sunny. Highs around 80. East Winds 5 to 10 Mph.

Tonight 18 Oct Coastal Duval

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

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Nassau River Entrance Temperature Statistics

October Temperature

Fernandina Beach Municipal Airport (6.2 miles)

  • Lowest 12 October, 2025

    60.8 °F

  • Average October

    73.7 °F

  • Highest 4 October, 2025

    84.2 °F

Climate (2020–Present)

Fernandina Beach Municipal Airport (6.2 miles)

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  • Average Low 2020–2025

    62.3 °F

  • Average 2020–2025

    69.6 °F

  • Average High 2020–2025

    77.7 °F
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