Santa Ana River Mouth (Inside) Weather Forecast

    • 59
    • 79

    Patchy Fog

    • 58
    • 77

    Partly Sunny

    • 60
    • 73

    Patchy Fog

    • 58
    • 75

    Patchy Fog

    • 59
    • 74

    Patchy Fog

    • 59
    • 75

    Patchy Fog

    • 59
    • 76

    Mostly Sunny

Today 19 Mar Orange County Coastal

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Local visibility one quarter mile or less at Times this morning. Highs 80 to 85 at the Beaches to 86 to 91 farther inland and near higher coastal Terrain. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 19 Mar Orange County Coastal

Mostly clear. Lows 57 to 61. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Santa Ana River Mouth (Inside) Temperature Statistics

March Temperature

John Wayne-Orange County Airport (5.6 miles)

  • Lowest 6 March, 2026

    52 °F

  • Average March

    66.5 °F

  • Highest 12 March, 2026

    91 °F

Climate (2021–Present)

John Wayne-Orange County Airport (5.6 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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