Santa Ana River Mouth Weather Forecast

    • 54
    • 75

    Patchy Fog

    • 56
    • 77

    Partly Sunny

    • 60
    • 83

    Partly Sunny

    • 60
    • 86

    Mostly Sunny

    • 58
    • 83

    Mostly Sunny

    • 59
    • 84

    Partly Sunny

Today 14 Mar Orange County Coastal

Patchy fog in the morning. Partly cloudy. Highs around 75 at the Beaches to 78 to 82 farther inland and near higher coastal Terrain. Light Winds becoming south 10 Mph in the afternoon.

Tonight 14 Mar Orange County Coastal

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows around 53. Light Winds.

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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

    65.6 °F

  • Highest 8 March, 2026

    90 °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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