South Bay Weather Forecast

    • 69
    • 79

    Increasing Clouds

    • 69
    • 76

    Chance Rain Showers

    • 71
    • 78

    Partly Sunny

    • 72
    • 78

    Partly Sunny

    • 72
    • 79

    Partly Sunny

    • 72
    • 80

    Partly Sunny

Today 27 Mar Coastal Cameron

Sunny. Highs in the mid 80s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 27 Mar Coastal Cameron

Mostly clear. Near steady temperature in the upper 60s. South Winds 10 to 15 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Bay Temperature Statistics

March Temperature

Port Isabel, Port Isabel-Cameron County Airport (13 miles)

  • Lowest 13 March, 2026

    49.6 °F

  • Average March

    74.5 °F

  • Highest 11 March, 2026

    93.7 °F

Climate (2021–Present)

Port Isabel, Port Isabel-Cameron County Airport (13 miles)

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  • Average Low 2021–2026

    68.6 °F

  • Average 2021–2026

    76.1 °F

  • Average High 2021–2026

    83.8 °F
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