Nassau Sound Weather Forecast

    • 44
    • 58

    Mostly Sunny

    • 52
    • 64

    Mostly Sunny

    • 56
    • 66

    Partly Sunny

    • 51
    • 68

    Breezy

    • 50
    • 56

    Mostly Cloudy

    • 56
    • 60

    Mostly Cloudy

Today 11 Dec Coastal Duval

Sunny. Highs around 60. Northwest Winds 10 to 15 Mph.

Tonight 11 Dec Coastal Duval

Clear. Lows around 40. Northwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Nassau Sound Temperature Statistics

December Temperature

Mayport Naval Station - Adm David L. McDonald Field (6.8 miles)

  • Lowest 4 December, 2025

    48 °F

  • Average December

    60.5 °F

  • Highest 5 December, 2025

    80.1 °F

Climate (2020–Present)

Mayport Naval Station - Adm David L. McDonald Field (6.8 miles)

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  • Average Low 2020–2025

    65.7 °F

  • Average 2020–2025

    72.7 °F

  • Average High 2020–2025

    80.1 °F
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