Santa Ana River Mouth Weather Forecast

    • 64
    • 72

    Increasing Clouds

    • 64
    • 72

    Partly Sunny

    • 64
    • 71

    Mostly Cloudy

    • 63
    • 70

    Mostly Cloudy

    • 64
    • 70

    Mostly Cloudy

    • 64
    • 71

    Partly Sunny

    • 63
    • 72

    Mostly Sunny

Today 17 Jul Orange County Coastal

Partly cloudy this morning. Becoming mostly sunny. Highs around 72 at the Beaches to 75 to 78 farther inland and near higher coastal Terrain. Light Winds becoming southwest 10 to 15 Mph this afternoon.

Tonight 17 Jul Orange County Coastal

Partly cloudy this Evening, then mostly cloudy with a slight chance of Showers and Thunderstorms overnight. Lows 61 to 64. Areas of Winds west 10 Mph this evening becoming light. Chance of measurable precipitation 20 percent.

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Santa Ana River Mouth Temperature Statistics

July Temperature

John Wayne-Orange County Airport (6.2 miles)

  • Lowest 3 July, 2025

    61 °F

  • Average July

    70.1 °F

  • Highest 8 July, 2025

    80.7 °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

    73.6 °F
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