Santa Ana River Mouth Weather Forecast

    • 54
    • 64

    Chance Rain Showers

    • 54
    • 64

    Mostly Cloudy

    • 48
    • 63

    Mostly Sunny

    • 49
    • 65

    Partly Sunny

    • 49
    • 65

    Partly Sunny

    • 51
    • 68

    Partly Sunny

Today 22 Jan Orange County Coastal

Cloudy with a slight chance of Showers in the Morning, then mostly cloudy with a chance of Showers in the afternoon. Highs 63 to 66. Light Winds. Chance of measurable precipitation 40 percent.

Tonight 22 Jan Orange County Coastal

Partly cloudy in the evening. Becoming cloudy. A slight chance of Showers. Lows around 52. Light Winds. Chance of measurable precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Santa Ana River Mouth Temperature Statistics

January Temperature

John Wayne-Orange County Airport (6.2 miles)

  • Lowest 8 January, 2026

    48 °F

  • Average January

    61 °F

  • Highest 14 January, 2026

    82 °F

Climate (2021–Present)

John Wayne-Orange County Airport (6.2 miles)

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  • Average Low 2021–2026

    58.8 °F

  • Average 2021–2026

    65.7 °F

  • Average High 2021–2026

    73.3 °F
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