Santa Ana River Mouth Weather Forecast

    • 54
    • 73

    Partly Sunny

    • 57
    • 78

    Mostly Sunny

    • 60
    • 84

    Mostly Sunny

    • 59
    • 83

    Mostly Sunny

    • 60
    • 83

    Mostly Sunny

    • 59
    • 83

    Partly Sunny

Today 15 Mar Orange County Coastal

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 72 to 75 at the Beaches to 77 to 81 farther inland and near higher coastal Terrain. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 15 Mar Orange County Coastal

Partly cloudy. Patchy fog overnight. Lows around 53. Areas of Winds south to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Santa Ana River Mouth Temperature Statistics

March Temperature

John Wayne-Orange County Airport (6.2 miles)

  • Lowest 6 March, 2026

    52 °F

  • Average March

    66.8 °F

  • Highest 12 March, 2026

    91 °F

Climate (2021–Present)

John Wayne-Orange County Airport (6.2 miles)

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  • Average Low 2021–2026

    58.9 °F

  • Average 2021–2026

    65.8 °F

  • Average High 2021–2026

    73.6 °F
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