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    Typical September conditions on the Fort Myers coast

    Weather by month

    Fort Myers Weather in September

    91°F / 74°F · 8.1" rain · 86°F Gulf

    Photo by Joseph Corl via Unsplash

    Last updated Reviewed by Sarah Mitchell

    September climate at a glance

    Average high

    91°F

    Average low

    74°F

    Gulf water

    86°F

    Rainfall

    8.1"

    Rainy days

    15

    Sunny days

    16

    UV index

    10

    Dew point

    74°F

    Tropical risk

    Peak

    Sunrise

    7:11 AM

    Sunset

    7:31 PM

    Daylight

    12.4 hrs

    Temperature and rainfall figures are 1991–2020 NOAA climate normals for the Fort Myers / Page Field station. Gulf water temperatures are nearshore averages; sunrise, sunset and daylight are mid-month values for 26.64°N, 81.87°W.

    How the rain actually falls in September

    Afternoon storms continue, and tropical systems can bring multi-day rain bands.

    What to wear in Fort Myers in September

    Hot-weather clothing plus rain gear — and travel insurance that covers named storms.

    Can you swim in September?

    Gulf water off Fort Myers averages 86°F in September — yes for most visitors. Shallow nearshore flats run several degrees warmer than the offshore reading by mid-afternoon.

    Hurricane and storm risk in September

    Named-storm risk in September is peak. The Atlantic hurricane season runs June 1 to November 30, with the climatological peak around September 10. Outside those months, tropical impact on Fort Myers is effectively nil.

    September weather records

    Fort Myers September temperature and precipitation summary
    MeasureValue
    Average high91°F
    Average low74°F
    Record high (Page Field)98°F
    Record low (Page Field)65°F
    Average rainfall8.1 in
    Rainy days15
    Mostly sunny days16
    Average afternoon dew point74°F
    Peak UV index10
    Gulf water temperature86°F
    HumidityVery high
    Named-storm riskPeak

    Planning a trip in September?

    Our September trip guide covers crowds, hotel pricing, events and whether the month is worth booking — not just the weather.

    Read the full Fort Myers in September guide

    Fort Myers weather in other months

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    Frequently asked questions

    What is the weather like in Fort Myers in September?

    Fort Myers weather in September averages 91°F highs and 74°F lows with 8.1 inches of rain and 86°F Gulf water, and it falls in the statistical peak of Atlantic hurricane season (September 10 is the climatological peak).

    How hot does it get in Fort Myers in September?

    Fort Myers averages a high of 91°F in September, with an average low of 74°F. The record high for the month at Page Field is 98°F and the record low is 65°F.

    Does it rain a lot in Fort Myers in September?

    September averages 8.1 inches of rain across about 15 days. Afternoon storms continue, and tropical systems can bring multi-day rain bands.

    How warm is the Gulf water in Fort Myers in September?

    Nearshore Gulf water off Fort Myers averages 86°F in September — yes for swimming.

    What should I wear in Fort Myers in September?

    Hot-weather clothing plus rain gear — and travel insurance that covers named storms.

    What time does the sun set in Fort Myers in September?

    Mid-September sunset in Fort Myers is around 7:31 PM, with sunrise at 7:11 AM and roughly 12.4 hours of daylight.

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