Nassau Sound Weather Forecast

    • 40
    • 53

    Becoming Sunny

    • 47
    • 52

    Partly Sunny

    • 47
    • 58

    Chance Rain Showers

    • 26
    • 49

    Slight Chance Rain/Snow

    • 30
    • 39

    Sunny

    • 35
    • 46

    Mostly Sunny

Today 28 Jan Coastal Duval

Mostly sunny. Highs in the mid 50s. Northwest Winds 5 to 10 Mph.

Tonight 28 Jan Coastal Duval

Mostly clear. Areas of frost after midnight. Lows in the mid 30s. Northwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Nassau Sound Temperature Statistics

January Temperature

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

  • Lowest 16 January, 2026

    33.1 °F

  • Average January

    56.3 °F

  • Highest 10 January, 2026

    80.1 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    65.6 °F

  • Average 2021–2026

    72.7 °F

  • Average High 2021–2026

    80.1 °F
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