Guadalupe Bay Weather Forecast

    • 76
    • 88

    Mostly Sunny

    • 77
    • 88

    Mostly Sunny

    • 78
    • 87

    Chance Thunderstorms

    • 79
    • 86

    Chance Thunderstorms

    • 79
    • 85

    Chance Thunderstorms

    • 76
    • 89

    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

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 70s. Southeast Winds 10 to 15 Mph, becoming east 5 to 10 Mph after midnight.

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Guadalupe Bay Temperature Statistics

September Temperature

Rockport Aransas County Airport (29.8 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 (29.8 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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