Fernandina Beach Weather Forecast

    • 75
    • 86

    Chance Rain Showers

    • 74
    • 84

    Rain Showers Likely

    • 69
    • 81

    Chance Rain Showers

    • 67
    • 78

    Mostly Sunny

    • 66
    • 78

    Mostly Sunny

    • 67
    • 81

    Partly Sunny

Today 22 Sep Coastal Nassau

Partly sunny with a chance of Showers and Thunderstorms. Highs in the mid 80s. Northeast Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 22 Sep Coastal Nassau

Partly cloudy. A slight chance of Showers and Thunderstorms after midnight. Lows in the mid 70s. Northeast Winds 5 to 10 Mph. Chance of rain 20 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

    81.4 °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

    62.8 °F

  • Average 2021–2026

    70.1 °F

  • Average High 2021–2026

    78.3 °F
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