Sanibel Island Weather Forecast

    • 82
    • 90

    Thunderstorms

    • 80
    • 90

    Thunderstorms

    • 80
    • 90

    Thunderstorms

    • 80
    • 90

    Thunderstorms

    • 81
    • 89

    Thunderstorms

    • 81
    • 89

    Thunderstorms

Today 6 Sep Coastal Lee

Mostly sunny with scattered Showers. Isolated Thunderstorms in the Morning, then scattered Thunderstorms in the afternoon. Humid with Highs in the lower 90s. East Winds around 5 Mph, becoming west in the afternoon. Chance of rain 40 percent.

Tonight 6 Sep Coastal Lee

Mostly clear. Scattered Showers and Thunderstorms in the evening. Humid with Lows in the upper 70s. West Winds 5 to 10 Mph. Chance of rain 30 percent.

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Sanibel Island Temperature Statistics

September Temperature

Fort Myers, Page Field (18 miles)

  • Lowest 1 September, 2026

    76.6 °F

  • Average September

    84 °F

  • Highest 1 September, 2026

    92.6 °F

Climate (2021–2026)

Fort Myers, Page Field (18 miles)

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  • Average Low 2021–2026

    68.5 °F

  • Average 2021–2026

    77.1 °F

  • Average High 2021–2026

    86.5 °F
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