Neptune Beach Weather Forecast

    • 50
    • 52

    Decreasing Clouds

    • 56
    • 59

    Mostly Sunny

    • 61
    • 65

    Mostly Cloudy

    • 62
    • 69

    Slight Chance Rain Showers

    • 57
    • 67

    Partly Sunny

    • 60
    • 67

    Partly Sunny

    • 61
    • 70

    Partly Sunny

Today 15 Dec Coastal Duval

Partly sunny. Highs in the lower 50s. Northeast Winds 15 to 20 Mph.

Tonight 15 Dec Coastal Duval

Partly cloudy this Evening, then clearing. Lows in the lower 40s. North Winds 10 to 15 Mph, Diminishing to around 5 Mph after midnight.

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  • Temperature Real-Time

Neptune Beach Temperature Statistics

December Temperature

Mayport Naval Station - Adm David L. McDonald Field (5.6 miles)

  • Lowest 12 December, 2025

    44.1 °F

  • Average December

    58.1 °F

  • Highest 5 December, 2025

    80.1 °F

Climate (2020–Present)

Mayport Naval Station - Adm David L. McDonald Field (5.6 miles)

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  • Average Low 2020–2025

    65.6 °F

  • Average 2020–2025

    72.7 °F

  • Average High 2020–2025

    80 °F
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