Bolsa Bay Weather Forecast

    • 65
    • 75

    Mostly Sunny

    • 68
    • 79

    Mostly Sunny

    • 67
    • 78

    Mostly Sunny

    • 69
    • 79

    Mostly Sunny

    • 71
    • 81

    Mostly Sunny

    • 73
    • 83

    Mostly Sunny

    • 75
    • 85

    Sunny

Today 28 Sep Orange County Coastal

Mostly sunny. Highs 86 to 90 at the Beaches to 92 to 96 farther inland and near higher coastal Terrain.

Tonight 28 Sep Orange County Coastal

Mostly clear. Lows 60 to 65. Areas of Winds west 10 Mph this evening becoming light.

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  • Temperature Real-Time

Bolsa Bay Temperature Statistics

September Temperature

Los Alamitos Army Airfield (5.6 miles)

  • Lowest 5 September, 2026

    62.1 °F

  • Average September

    74.1 °F

  • Highest 8 September, 2026

    94.8 °F

Climate (2021–2026)

Los Alamitos Army Airfield (5.6 miles)

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  • Average Low 2021–2026

    55 °F

  • Average 2021–2026

    63.2 °F

  • Average High 2021–2026

    73.2 °F
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