Big Spanish Channel - Mayo Key Weather Forecast

    • 72
    • 80

    Mostly Sunny

    • 69
    • 79

    Mostly Sunny

    • 69
    • 78

    Partly Sunny

    • 70
    • 78

    Mostly Sunny

    • 70
    • 79

    Partly Sunny

    • 69
    • 78

    Partly Sunny

Today 23 Dec Monroe Lower Keys

Mostly sunny with a slight chance of Showers. Windy. Highs in the upper 70s. Northeast to east Winds 20 to 25 Mph, decreasing to near 20 Mph. Chance of rain 10 percent.

Tonight 23 Dec Monroe Lower Keys

Mostly clear with a slight chance of Showers. Windy. Lows in the lower 70s. Northeast to east Winds near 20 Mph. Chance of rain 10 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Spanish Channel - Mayo Key Temperature Statistics

December Temperature

The Florida Keys - Marathon International Airport (19.3 miles)

  • Lowest 11 December, 2025

    66.9 °F

  • Average December

    75.5 °F

  • Highest 1 December, 2025

    82 °F

Climate (2020–Present)

The Florida Keys - Marathon International Airport (19.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    75.4 °F

  • Average 2020–2025

    80 °F

  • Average High 2020–2025

    85.1 °F
Get WillyWeather+ to remove ads