San Gregorio State Beach Weather Forecast

    • 53
    • 65

    Partly Sunny

    • 51
    • 59

    Mostly Cloudy

    • 51
    • 58

    Mostly Cloudy

    • 50
    • 59

    Chance Rain

    • 51
    • 60

    Chance Rain

    • 51
    • 59

    Mostly Cloudy

Today 17 Oct San Francisco Peninsula Coast

Sunny. Highs in the upper 70s. Northwest Winds 5 to 10 Mph.

Tonight 17 Oct San Francisco Peninsula Coast

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 50s. Northwest Winds around 5 Mph.

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San Gregorio State Beach Temperature Statistics

October Temperature

Half Moon Bay Airport (14.3 miles)

  • Lowest 13 October, 2026

    44.6 °F

  • Average October

    59.7 °F

  • Highest 15 October, 2026

    86 °F

Climate (2021–2026)

Half Moon Bay Airport (14.3 miles)

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  • Average Low 2021–2026

    48.8 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    61.2 °F
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