Big Spanish Channel - Porpoise Key Weather Forecast

    • 82
    • 87

    Partly Sunny

    • 82
    • 88

    Partly Sunny

    • 82
    • 88

    Partly Sunny

    • 81
    • 88

    Partly Sunny

    • 80
    • 87

    Partly Sunny

    • 81
    • 87

    Mostly Cloudy

Today 8 May Monroe Lower Keys

Mostly sunny. Highs in the upper 80s. North Winds near 5 Mph, becoming southeast this afternoon.

Tonight 8 May Monroe Lower Keys

Partly cloudy. Lows in the lower 80s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Spanish Channel - Porpoise Key Temperature Statistics

May Temperature

The Florida Keys - Marathon International Airport (18.6 miles)

  • Lowest 4 May, 2026

    72.6 °F

  • Average May

    79.9 °F

  • Highest 2 May, 2026

    85.6 °F

Climate (2021–Present)

The Florida Keys - Marathon International Airport (18.6 miles)

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  • Average Low 2021–2026

    75.3 °F

  • Average 2021–2026

    80 °F

  • Average High 2021–2026

    85 °F
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