San Antonio Bay Weather Forecast

    • 45
    • 66

    Slight Chance Rain Showers

    • 52
    • 58

    Mostly Cloudy

    • 64
    • 68

    Chance Thunderstorms

    • 63
    • 69

    Chance Rain Showers

    • 61
    • 71

    Partly Sunny

    • 62
    • 68

    Mostly Cloudy

Today 14 Dec Calhoun Islands

Mostly cloudy. A slight chance of Showers in the morning. Patchy fog in the morning. Breezy with Highs in the mid 60s. Temperature falling into the upper 50s in the afternoon. North Winds 20 to 25 Mph with Gusts up to 35 Mph. Chance of rain 20 percent.

Tonight 14 Dec Calhoun Islands

Mostly cloudy in the Evening, then becoming partly cloudy. Breezy, cooler with Lows in the mid 40s. Northeast Winds 15 to 25 Mph, becoming 15 to 20 Mph after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

San Antonio Bay Temperature Statistics

December Temperature

Rockport Aransas County Airport (21.7 miles)

  • Lowest 2 December, 2025

    42.1 °F

  • Average December

    55.7 °F

  • Highest 7 December, 2025

    80.1 °F

Climate (2020–Present)

Rockport Aransas County Airport (21.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    67.3 °F

  • Average 2020–2025

    74.2 °F

  • Average High 2020–2025

    81.6 °F
Get WillyWeather+ to remove ads