Fernandina Beach Weather Forecast

    • 78
    • 86

    Chance Rain Showers

    • 77
    • 86

    Chance Thunderstorms

    • 75
    • 88

    Rain Showers Likely

    • 75
    • 88

    Rain Showers Likely

    • 76
    • 87

    Chance Thunderstorms

    • 76
    • 87

    Chance Thunderstorms

Today 8 Sep Coastal Nassau

Mostly sunny. A slight chance of Showers Early, then a chance of Showers and Thunderstorms. Highs in the mid 80s. Northeast Winds 15 to 20 Mph. Chance of rain 40 percent.

Tonight 8 Sep Coastal Nassau

A chance of Thunderstorms in the evening. Mostly cloudy with a chance of Showers. Lows in the upper 70s. Northeast Winds 15 to 20 Mph, becoming east 5 to 10 Mph after midnight. Chance of rain 50 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 5 September, 2026

    75.2 °F

  • Average September

    81.5 °F

  • Highest 5 September, 2026

    89.6 °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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