Half Moon Bay - Princeton Weather Forecast

    • 46
    • 57

    Rain Likely

    • 46
    • 60

    Mostly Sunny

    • 46
    • 61

    Mostly Sunny

    • 47
    • 62

    Partly Sunny

    • 48
    • 61

    Mostly Cloudy

    • 47
    • 60

    Mostly Cloudy

Today 20 Nov San Francisco Peninsula Coast

Mostly cloudy in the morning then becoming partly cloudy. A slight chance of rain. Highs in the upper 50s. Northwest Winds 5 to 15 Mph.

Tonight 20 Nov San Francisco Peninsula Coast

Partly cloudy in the evening then becoming mostly clear. Lows in the upper 40s. North Winds 5 to 15 Mph.

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Half Moon Bay - Princeton Temperature Statistics

November Temperature

Half Moon Bay Airport (0.6 miles)

  • Lowest 1 November, 2025

    48.2 °F

  • Average November

    57.4 °F

  • Highest 8 November, 2025

    77 °F

Climate (2020–Present)

Half Moon Bay Airport (0.6 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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