Key Biscayne Weather Forecast

    • 73
    • 80

    Increasing Clouds

    • 62
    • 82

    Chance Rain Showers

    • 64
    • 74

    Mostly Sunny

    • 69
    • 76

    Mostly Sunny

    • 71
    • 78

    Mostly Sunny

    • 74
    • 78

    Mostly Sunny

Today 9 Mar Coastal Miami Dade County

Sunny. Near steady temperature in the lower 80s. South Winds 10 to 15 Mph.

Tonight 9 Mar Coastal Miami Dade County

Mostly clear in the Evening, then becoming partly cloudy. Lows around 70. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Key Biscayne Temperature Statistics

March Temperature

Miami, Miami International Airport (11.2 miles)

  • Lowest 7 March, 2025

    53.1 °F

  • Average March

    72 °F

  • Highest 5 March, 2025

    84.7 °F

Climate (2020–Present)

Miami, Miami International Airport (11.2 miles)

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  • Average Low 2020–2025

    72.8 °F

  • Average 2020–2025

    78.6 °F

  • Average High 2020–2025

    85.4 °F
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