St. Augustine Beach Weather Forecast

    • 73
    • 82

    Mostly Sunny

    • 73
    • 81

    Mostly Sunny

    • 75
    • 83

    Partly Sunny

    • 76
    • 83

    Slight Chance Thunderstorms

    • 76
    • 83

    Slight Chance Thunderstorms

    • 77
    • 83

    Chance Thunderstorms

Today 15 Sep Southeast Coastal St. Johns

Sunny. Highs in the mid 80s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 15 Sep Southeast Coastal St. Johns

Mostly clear. Lows in the upper 60s. North Winds 5 to 10 Mph.

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St. Augustine Beach Temperature Statistics

September Temperature

Northeast Florida Regional Airport (8.1 miles)

  • Lowest 4 September, 2025

    71.1 °F

  • Average September

    80.3 °F

  • Highest 7 September, 2025

    91 °F

Climate (2020–Present)

Northeast Florida Regional Airport (8.1 miles)

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  • Average Low 2020–2025

    63.8 °F

  • Average 2020–2025

    70.8 °F

  • Average High 2020–2025

    78.1 °F
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