Fernandina Beach Weather Forecast

    • 77
    • 87

    Rain Showers Likely

    • 75
    • 85

    Slight Chance Rain Showers

    • 75
    • 84

    Chance Thunderstorms

    • 75
    • 84

    Rain Showers Likely

    • 75
    • 84

    Chance Thunderstorms

    • 74
    • 84

    Rain Showers Likely

Today 15 Sep Coastal Nassau

Partly sunny. A chance of Showers with a slight chance of Thunderstorms this Morning, then Showers likely with a chance of Thunderstorms this afternoon. Highs in the upper 80s. Northeast Winds 15 to 20 Mph. Gusts up to 35 Mph this afternoon. Chance of rain 60 percent.

Tonight 15 Sep Coastal Nassau

Mostly cloudy with Showers likely with a chance of Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the mid 70s. Northeast Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fernandina Beach Temperature Statistics

September Temperature

Fernandina Beach Municipal Airport (3.7 miles)

  • Lowest 12 September, 2026

    71.6 °F

  • Average September

    81.3 °F

  • Highest 13 September, 2026

    91.4 °F

Climate (2021–2026)

Fernandina Beach Municipal Airport (3.7 miles)

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  • Average Low 2021–2026

    62.7 °F

  • Average 2021–2026

    70.1 °F

  • Average High 2021–2026

    78.3 °F
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