San Antonio Bay Weather Forecast

    • 41
    • 63

    Breezy

    • 37
    • 55

    Breezy

    • 37
    • 47

    Breezy

    • 49
    • 55

    Partly Sunny

    • 58
    • 64

    Mostly Cloudy

    • 57
    • 67

    Chance Rain Showers

    • 47
    • 64

    Chance Rain Showers

Today 29 Jan Calhoun Islands

Partly cloudy late this Morning, then becoming sunny. Highs in the mid 60s. South Winds around 5 Mph.

Tonight 29 Jan Calhoun Islands

Partly cloudy. Cooler with Lows around 40. South Winds 5 to 10 Mph, increasing to north 15 to 20 Mph after midnight.

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San Antonio Bay Temperature Statistics

January Temperature

Rockport Aransas County Airport (21.7 miles)

  • Lowest 27 January, 2026

    24.1 °F

  • Average January

    60.1 °F

  • Highest 3 January, 2026

    85.6 °F

Climate (2021–Present)

Rockport Aransas County Airport (21.7 miles)

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  • Average Low 2021–2026

    67.4 °F

  • Average 2021–2026

    74.3 °F

  • Average High 2021–2026

    81.7 °F
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