Fernandina Beach Weather Forecast

    • 73
    • 86

    Mostly Cloudy

    • 75
    • 83

    Partly Sunny

    • 76
    • 84

    Partly Sunny

    • 75
    • 85

    Chance Thunderstorms

    • 76
    • 84

    Chance Thunderstorms

    • 72
    • 84

    Chance Thunderstorms

    • 70
    • 81

    Rain Showers Likely

Today 29 Sep Coastal Nassau

Showers likely in the Morning, then Showers with a slight chance of Thunderstorms in the afternoon. Breezy with Highs in the mid 70s. Chance of rain 80 percent.

Tonight 29 Sep Coastal Nassau

Mostly cloudy this Evening, then becoming partly cloudy. Lows in the lower 70s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fernandina Beach Temperature Statistics

September Temperature

Fernandina Beach Municipal Airport (3.7 miles)

  • Lowest 26 September, 2026

    60.8 °F

  • Average September

    79.5 °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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