Santa Ana River Mouth Weather Forecast

    • 59
    • 69

    Mostly Cloudy

    • 59
    • 69

    Decreasing Clouds

    • 60
    • 71

    Mostly Sunny

    • 63
    • 77

    Mostly Sunny

    • 62
    • 76

    Mostly Sunny

    • 61
    • 73

    Partly Sunny

    • 61
    • 73

    Partly Sunny

Today 25 Oct Orange County Coastal

Mostly cloudy this morning. Becoming partly cloudy. Highs around 70 at the Beaches to 72 to 75 farther inland and near higher coastal Terrain. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 25 Oct Orange County Coastal

Partly cloudy this evening. Becoming mostly cloudy. Patchy fog. Lows 56 to 59. Areas of Winds west to 10 Mph this evening becoming light.

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Santa Ana River Mouth Temperature Statistics

October Temperature

John Wayne-Orange County Airport (6.2 miles)

  • Lowest 16 October, 2025

    54 °F

  • Average October

    66.6 °F

  • Highest 18 October, 2025

    84 °F

Climate (2020–Present)

John Wayne-Orange County Airport (6.2 miles)

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  • Average Low 2020–2025

    58.6 °F

  • Average 2020–2025

    65.6 °F

  • Average High 2020–2025

    73.4 °F
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