Port Aransas Weather Forecast

    • 83
    • 88

    Partly Sunny

    • 83
    • 88

    Slight Chance Thunderstorms

    • 83
    • 88

    Slight Chance Thunderstorms

    • 82
    • 89

    Partly Sunny

    • 82
    • 91

    Slight Chance Rain Showers

    • 81
    • 91

    Partly Sunny

    • 81
    • 90

    Slight Chance Thunderstorms

Today 20 Sep Nueces Islands

Partly cloudy. Highs in the upper 80s.

Tonight 20 Sep Nueces Islands

Partly cloudy. Near steady temperature in the mid 80s. Southeast Winds 10 to 15 Mph, Diminishing to 5 to 10 Mph after midnight.

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Port Aransas Temperature Statistics

September Temperature

Port Aransas, Mustang Beach Airport (1.9 miles)

  • Lowest 18 September, 2026

    81.9 °F

  • Average September

    86.5 °F

  • Highest 13 September, 2026

    91.6 °F

Climate (2021–2026)

Port Aransas, Mustang Beach Airport (1.9 miles)

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  • Average Low 2021–2026

    69.5 °F

  • Average 2021–2026

    73.9 °F

  • Average High 2021–2026

    78.7 °F
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