San Gabriel River Mouth Weather Forecast

    • 67
    • 71

    Gradual Clearing

    • 67
    • 72

    Patchy Fog

    • 68
    • 73

    Partly Sunny

    • 67
    • 74

    Partly Sunny

    • 66
    • 72

    Partly Sunny

    • 66
    • 73

    Partly Sunny

Today 17 Sep Orange County Coastal

Partly cloudy this morning. Becoming mostly sunny. Highs 72 to 76. Light Winds becoming west 10 Mph this afternoon.

Tonight 17 Sep Orange County Coastal

Mostly clear in the evening. Becoming partly cloudy. Lows 59 to 64. Areas of Winds west to 10 Mph in the evening becoming light.

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  • Temperature Real-Time

San Gabriel River Mouth Temperature Statistics

September Temperature

Long Beach, Long Beach Airport (5 miles)

  • Lowest 2 September, 2026

    64.7 °F

  • Average September

    77.8 °F

  • Highest 9 September, 2026

    107.7 °F

Climate (2021–2026)

Long Beach, Long Beach Airport (5 miles)

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  • Average Low 2021–2026

    57.8 °F

  • Average 2021–2026

    65.4 °F

  • Average High 2021–2026

    75 °F
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