Sullivan Canyon Park Weather Forecast

    • 58
    • 72

    Decreasing Clouds

    • 60
    • 72

    Mostly Sunny

    • 60
    • 75

    Mostly Sunny

    • 62
    • 79

    Mostly Sunny

    • 60
    • 77

    Partly Sunny

    • 60
    • 75

    Mostly Sunny

Today 16 Sep Eastern Santa Monica Mountains Recreational Area

Low Clouds and fog with drizzle in the morning then mostly cloudy. Highs in the 70s to around 80 except the mid to upper 60s closer to the coast.

Tonight 16 Sep Eastern Santa Monica Mountains Recreational Area

Partly cloudy in the evening then mostly cloudy. A slight chance of through the night. Lows in the 50s to around 60.

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Sullivan Canyon Park Temperature Statistics

September Temperature

Santa Monica, Santa Monica Municipal Airport (5 miles)

  • Lowest 1 September, 2026

    63.6 °F

  • Average September

    75.7 °F

  • Highest 9 September, 2026

    99.6 °F

Climate (2021–2026)

Santa Monica, Santa Monica Municipal Airport (5 miles)

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  • Average Low 2021–2026

    56.4 °F

  • Average 2021–2026

    63.2 °F

  • Average High 2021–2026

    70.4 °F
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