San Gregorio State Beach Weather Forecast

    • 53
    • 67

    Partly Sunny

    • 51
    • 59

    Mostly Cloudy

    • 53
    • 61

    Partly Sunny

    • 54
    • 62

    Partly Sunny

    • 53
    • 62

    Mostly Cloudy

    • 54
    • 63

    Partly Sunny

Today 29 Oct San Francisco Peninsula Coast

Sunny. Highs in the lower 70s. North Winds 5 to 10 Mph.

Tonight 29 Oct San Francisco Peninsula Coast

Partly cloudy. Lows in the lower 50s. Northwest Winds 5 to 10 Mph.

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San Gregorio State Beach Temperature Statistics

October Temperature

Half Moon Bay Airport (14.3 miles)

  • Lowest 14 October, 2025

    42.8 °F

  • Average October

    58.5 °F

  • Highest 20 October, 2025

    77 °F

Climate (2020–Present)

Half Moon Bay Airport (14.3 miles)

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  • Average Low 2020–2025

    48 °F

  • Average 2020–2025

    54.5 °F

  • Average High 2020–2025

    60.4 °F
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