San Antonio Bay Weather Forecast

    • 49
    • 60

    Windy

    • 58
    • 62

    Mostly Sunny

    • 64
    • 69

    Mostly Sunny

    • 65
    • 73

    Sunny

    • 66
    • 74

    Sunny

    • 67
    • 76

    Sunny

Today 16 Mar Calhoun Islands

Sunny in the Morning, then becoming partly cloudy. Windy and much cooler with Highs around 60. North Winds 25 to 35 Mph with Gusts up to 45 Mph, Diminishing to 15 to 25 Mph with Gusts up to 35 Mph in the afternoon.

Tonight 16 Mar Calhoun Islands

Mostly cloudy. Lows in the upper 40s. North Winds 15 to 20 Mph, becoming northeast 10 to 15 Mph after midnight.

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San Antonio Bay Temperature Statistics

March Temperature

Rockport Aransas County Airport (21.7 miles)

  • Lowest 12 March, 2026

    55 °F

  • Average March

    73.7 °F

  • Highest 11 March, 2026

    89.1 °F

Climate (2021–Present)

Rockport Aransas County Airport (21.7 miles)

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  • Average Low 2021–2026

    67.5 °F

  • Average 2021–2026

    74.5 °F

  • Average High 2021–2026

    81.9 °F
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