San Antonio Bay - Swan Point Weather Forecast

    • 77
    • 87

    Partly Sunny

    • 78
    • 86

    Becoming Sunny

    • 79
    • 85

    Chance Rain Showers

    • 80
    • 84

    Chance Thunderstorms

    • 80
    • 85

    Chance Thunderstorms

    • 78
    • 86

    Chance Thunderstorms

    • 77
    • 86

    Chance Thunderstorms

Today 18 Sep Coastal Calhoun

Sunny. Highs in the upper 80s. East Winds 5 to 10 Mph, increasing to southeast 10 to 15 Mph this afternoon.

Tonight 18 Sep Coastal Calhoun

Partly cloudy. Lows in the mid 70s. Southeast Winds 10 to 15 Mph, becoming east around 5 Mph after midnight.

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San Antonio Bay - Swan Point Temperature Statistics

September Temperature

Rockport Aransas County Airport (29.2 miles)

  • Lowest 9 September, 2025

    73 °F

  • Average September

    84.1 °F

  • Highest 3 September, 2025

    93.9 °F

Climate (2020–Present)

Rockport Aransas County Airport (29.2 miles)

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  • Average Low 2020–2025

    67 °F

  • Average 2020–2025

    74 °F

  • Average High 2020–2025

    81.5 °F
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