Half Moon Bay State Beach Weather Forecast

    • 46
    • 66

    Mostly Sunny

    • 45
    • 65

    Mostly Sunny

    • 46
    • 62

    Partly Sunny

    • 47
    • 65

    Partly Sunny

    • 46
    • 62

    Mostly Cloudy

    • 44
    • 63

    Partly Sunny

Today 3 Dec San Francisco Peninsula Coast

Sunny. Highs in the mid 60s. North Winds around 5 Mph.

Tonight 3 Dec San Francisco Peninsula Coast

Mostly clear. Lows in the upper 40s. Northeast Winds around 5 Mph.

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  • Temperature Real-Time

Half Moon Bay State Beach Temperature Statistics

December Temperature

Half Moon Bay Airport (4.3 miles)

  • Lowest 1 December, 2024

    46.4 °F

  • Average December

    57.8 °F

  • Highest 1 December, 2024

    68 °F

Climate (2019–Present)

Half Moon Bay Airport (4.3 miles)

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  • Average Low 2019–2024

    48 °F

  • Average 2019–2024

    54.5 °F

  • Average High 2019–2024

    60.3 °F
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