Nassau River - Back River Weather Forecast

    • 64
    • 88

    Mostly Sunny

    • 68
    • 89

    Partly Sunny

    • 61
    • 87

    Mostly Cloudy

    • 60
    • 71

    Partly Sunny

    • 60
    • 75

    Partly Sunny

    • 59
    • 76

    Mostly Sunny

Today 17 Apr Coastal Duval

Sunny. Highs in the upper 80s. West Winds around 5 Mph, becoming southeast in the afternoon.

Tonight 17 Apr Coastal Duval

Mostly clear. Lows in the lower 60s. Southwest Winds around 5 Mph.

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  • Temperature Real-Time

Nassau River - Back River Temperature Statistics

April Temperature

Fernandina Beach Municipal Airport (4.3 miles)

  • Lowest 11 April, 2026

    55.4 °F

  • Average April

    67.8 °F

  • Highest 5 April, 2026

    80.6 °F

Climate (2021–Present)

Fernandina Beach Municipal Airport (4.3 miles)

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  • Average Low 2021–2026

    62.7 °F

  • Average 2021–2026

    70 °F

  • Average High 2021–2026

    78.2 °F
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