Saint Johns River - Green Cove Springs Marina Weather Forecast

    • 67
    • 87

    Partly Sunny

    • 71
    • 89

    Partly Sunny

    • 73
    • 87

    Partly Sunny

    • 74
    • 86

    Slight Chance Thunderstorms

    • 75
    • 86

    Chance Rain Showers

    • 75
    • 85

    Chance Rain Showers

Today 16 Sep Eastern Clay

Sunny. Highs in the upper 80s. North Winds 5 to 10 Mph, becoming northeast 10 to 15 Mph in the afternoon.

Tonight 16 Sep Eastern Clay

Mostly clear. Lows in the mid 60s. North Winds around 5 Mph.

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  • Temperature Real-Time

Saint Johns River - Green Cove Springs Marina Temperature Statistics

September Temperature

Jacksonville Naval Air Station (16.8 miles)

  • Lowest 11 September, 2025

    71.1 °F

  • Average September

    78.5 °F

  • Highest 5 September, 2025

    90 °F

Climate (2020–Present)

Jacksonville Naval Air Station (16.8 miles)

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  • Average Low 2020–2025

    65.1 °F

  • Average 2020–2025

    72.6 °F

  • Average High 2020–2025

    81 °F
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