Santa Monica Weather Forecast

    • 67
    • 70

    Patchy Fog

    • 68
    • 73

    Mostly Cloudy

    • 69
    • 75

    Partly Sunny

    • 69
    • 75

    Partly Sunny

    • 69
    • 77

    Partly Sunny

    • 68
    • 77

    Partly Sunny

    • 67
    • 75

    Mostly Sunny

Today 21 Sep Los Angeles County Beaches

Partly cloudy in the morning then sunny. Highs in the mid 70s to lower 80s.

Tonight 21 Sep Los Angeles County Beaches

Mostly clear early then low Clouds and fog. Lows in the upper 50s and 60s. West Winds around 15 Mph in the evening.

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Santa Monica Temperature Statistics

September Temperature

Santa Monica, Santa Monica Municipal Airport (2.5 miles)

  • Lowest 1 September, 2026

    63.6 °F

  • Average September

    74.7 °F

  • Highest 9 September, 2026

    99.6 °F

Climate (2021–2026)

Santa Monica, Santa Monica Municipal Airport (2.5 miles)

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  • Average Low 2021–2026

    56.5 °F

  • Average 2021–2026

    63.2 °F

  • Average High 2021–2026

    70.4 °F
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