Amelia Island Weather Forecast

    • 77
    • 92

    Chance Thunderstorms

    • 78
    • 92

    Slight Chance Thunderstorms

    • 79
    • 93

    Slight Chance Thunderstorms

    • 78
    • 94

    Slight Chance Thunderstorms

    • 78
    • 93

    Chance Thunderstorms

    • 78
    • 92

    Chance Thunderstorms

Today 15 Aug Coastal Nassau

Mostly sunny. A chance of Showers and Thunderstorms in the afternoon. Highs in the lower 90s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent. Heat index Values up to 109.

Tonight 15 Aug Coastal Nassau

Partly cloudy with a chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Lows in the upper 70s. South Winds 5 to 10 Mph, becoming southwest after midnight. Chance of rain 40 percent. Heat index Values up to 105 early in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Amelia Island Temperature Statistics

August Temperature

Fernandina Beach Municipal Airport (1.9 miles)

  • Lowest 8 August, 2026

    73.4 °F

  • Average August

    80.4 °F

  • Highest 1 August, 2026

    91.4 °F

Climate (2021–2026)

Fernandina Beach Municipal Airport (1.9 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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