Santa Ana River Mouth Weather Forecast

    • 52
    • 63

    Mostly Sunny

    • 49
    • 63

    Mostly Sunny

    • 50
    • 64

    Mostly Sunny

    • 52
    • 67

    Mostly Sunny

    • 53
    • 68

    Mostly Sunny

    • 54
    • 68

    Mostly Sunny

Today 7 Jan Orange County Coastal

Partly cloudy. A slight chance of Showers in the morning. Highs 62 to 65. Areas of Winds north to 10 Mph becoming west with Gusts to 25 Mph in the afternoon. Chance of measurable precipitation 20 percent.

Tonight 7 Jan Orange County Coastal

Mostly clear in the evening. Becoming partly cloudy. Lows around 50. Areas of Winds northwest to 10 Mph.

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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 3 January, 2026

    55.9 °F

  • Average January

    61.2 °F

  • Highest 2 January, 2026

    68 °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

    73.4 °F
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