San Antonio Bay - Swan Point Weather Forecast

    • 65
    • 73

    Mostly Cloudy

    • 66
    • 72

    Dense Fog

    • 65
    • 72

    Partly Sunny

    • 65
    • 73

    Partly Sunny

    • 65
    • 72

    Partly Sunny

    • 66
    • 73

    Partly Sunny

Today 21 Dec Coastal Calhoun

Mostly cloudy. Near steady temperature in the mid 70s. Southwest Winds around 5 Mph.

Tonight 21 Dec Coastal Calhoun

Mostly cloudy. Widespread fog after midnight. Lows in the lower 60s. East Winds around 5 Mph, becoming northeast after midnight.

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San Antonio Bay - Swan Point Temperature Statistics

December Temperature

Rockport Aransas County Airport (29.2 miles)

  • Lowest 15 December, 2025

    37.9 °F

  • Average December

    58 °F

  • Highest 7 December, 2025

    80.1 °F

Climate (2020–Present)

Rockport Aransas County Airport (29.2 miles)

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  • Average Low 2020–2025

    67.3 °F

  • Average 2020–2025

    74.3 °F

  • Average High 2020–2025

    81.6 °F
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