La Costa Beach Weather Forecast

    • 70
    • 80

    Mostly Cloudy

    • 70
    • 82

    Mostly Cloudy

    • 66
    • 78

    Patchy Fog

    • 65
    • 77

    Mostly Sunny

    • 67
    • 78

    Mostly Sunny

    • 67
    • 79

    Mostly Sunny

    • 67
    • 79

    Partly Sunny

Today 25 Sep Malibu Coast

Partly cloudy in the morning then sunny. Highs around 80.

Tonight 25 Sep Malibu Coast

Partly cloudy early then low Clouds and fog. Lows in the mid 60s to around 70.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

La Costa Beach Temperature Statistics

September Temperature

Santa Monica, Santa Monica Municipal Airport (10.6 miles)

  • Lowest 1 September, 2026

    63.6 °F

  • Average September

    74.2 °F

  • Highest 9 September, 2026

    99.6 °F

Climate (2021–2026)

Santa Monica, Santa Monica Municipal Airport (10.6 miles)

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  • Average Low 2021–2026

    56.5 °F

  • Average 2021–2026

    63.3 °F

  • Average High 2021–2026

    70.4 °F
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