Gray Whale Cove State Beach (Devils Slide) Weather Forecast

    • 59
    • 64

    Mostly Cloudy

    • 55
    • 63

    Partly Sunny

    • 56
    • 62

    Partly Sunny

    • 55
    • 62

    Mostly Sunny

    • 55
    • 62

    Partly Sunny

    • 56
    • 60

    Chance Rain

Today 8 Oct San Francisco Peninsula Coast

Mostly cloudy. Highs in the upper 60s. South Winds 10 to 20 Mph.

Tonight 8 Oct San Francisco Peninsula Coast

Mostly cloudy. A slight chance of drizzle. Lows in the upper 50s. South Winds 10 to 20 Mph.

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Gray Whale Cove State Beach (Devils Slide) Temperature Statistics

October Temperature

Half Moon Bay Airport (3.1 miles)

  • Lowest 5 October, 2025

    50 °F

  • Average October

    60.8 °F

  • Highest 1 October, 2025

    69.8 °F

Climate (2020–Present)

Half Moon Bay Airport (3.1 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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