Biscayne Bay - Key Biscayne Yacht Club Weather Forecast

    • 74
    • 80

    Partly Sunny

    • 74
    • 80

    Breezy

    • 75
    • 78

    Breezy

    • 73
    • 78

    Breezy

    • 72
    • 78

    Partly Sunny

    • 70
    • 78

    Partly Sunny

    • 69
    • 78

    Mostly Sunny

Today 20 Dec Coastal Miami Dade County

Mostly sunny. A slight chance of Showers this afternoon. Highs in the lower 80s. North Winds 5 to 10 Mph, becoming east this afternoon. Chance of rain 20 percent.

Tonight 20 Dec Coastal Miami Dade County

Mostly clear this Evening, then becoming partly cloudy. Lows around 70. East Winds 5 to 10 Mph.

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Biscayne Bay - Key Biscayne Yacht Club Temperature Statistics

December Temperature

Miami, Miami International Airport (10.6 miles)

  • Lowest 11 December, 2025

    59 °F

  • Average December

    74.2 °F

  • Highest 8 December, 2025

    86 °F

Climate (2020–Present)

Miami, Miami International Airport (10.6 miles)

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  • Average Low 2020–2025

    72.6 °F

  • Average 2020–2025

    78.6 °F

  • Average High 2020–2025

    85.4 °F
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