Santa Ana River Mouth Weather Forecast

    • 53
    • 74

    Mostly Sunny

    • 54
    • 70

    Partly Sunny

    • 56
    • 74

    Partly Sunny

    • 55
    • 72

    Partly Sunny

    • 55
    • 70

    Partly Sunny

    • 54
    • 69

    Partly Sunny

Today 15 Jan Orange County Coastal

Mostly sunny. Highs 74 to 78. Areas of Winds northeast 10 to 15 Mph becoming southwest in the afternoon.

Tonight 15 Jan Orange County Coastal

Mostly clear. Lows around 53. Areas of Winds northeast 10 Mph in the evening becoming light.

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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

    60.5 °F

  • Highest 12 January, 2026

    78.1 °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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