Amelia Island Weather Forecast

    • 76
    • 87

    Thunderstorms Likely

    • 76
    • 89

    Chance Thunderstorms

    • 77
    • 88

    Chance Thunderstorms

    • 77
    • 86

    Rain Showers Likely

    • 76
    • 84

    Chance Thunderstorms

    • 75
    • 84

    Chance Thunderstorms

Today 12 Sep Coastal Nassau

Partly sunny with a chance of Showers with a slight chance of Thunderstorms in the Morning, then mostly cloudy with Showers and Thunderstorms likely in the afternoon. Some Thunderstorms may produce heavy rainfall in the afternoon. Highs around 90. Southwest Winds 5 to 10 Mph, becoming southeast with Gusts up to 20 Mph in the afternoon. Chance of rain 60 percent.

Tonight 12 Sep Coastal Nassau

Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then a slight chance of Showers after midnight. Lows in the mid 70s. South Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming southwest after midnight. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Amelia Island Temperature Statistics

September Temperature

Fernandina Beach Municipal Airport (1.9 miles)

  • Lowest 7 September, 2026

    73.4 °F
  • Average September

    81.5 °F
  • Highest 5 September, 2026

    89.6 °F

Climate (2021–2026)

Fernandina Beach Municipal Airport (1.9 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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