Port Royal Weather Forecast

    • 77
    • 90

    Thunderstorms Likely

    • 76
    • 89

    Thunderstorms Likely

    • 76
    • 88

    Thunderstorms

    • 77
    • 87

    Thunderstorms Likely

    • 77
    • 86

    Thunderstorms Likely

    • 78
    • 86

    Thunderstorms Likely

Today 16 Sep Coastal Collier County

Mostly sunny. Showers and Thunderstorms likely this afternoon. Highs in the mid 90s. Northeast Winds 10 to 15 Mph. Chance of rain 70 percent. Heat index Values up to 107.

Tonight 16 Sep Coastal Collier County

Partly cloudy with Showers and Thunderstorms likely in the Evening, then mostly clear after midnight. Humid with Lows in the mid 70s. Northeast Winds 10 to 15 Mph. Gusts up to 25 Mph in the evening. Chance of rain 70 percent.

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Port Royal Temperature Statistics

September Temperature

Naples, Naples Municipal Airport (3.1 miles)

  • Lowest 3 September, 2026

    75.7 °F

  • Average September

    83.6 °F

  • Highest 9 September, 2026

    93.7 °F

Climate (2021–2026)

Naples, Naples Municipal Airport (3.1 miles)

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  • Average Low 2021–2026

    69.4 °F

  • Average 2021–2026

    77.1 °F

  • Average High 2021–2026

    85.4 °F
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