Half Moon Bay - Princeton Weather Forecast

    • 41
    • 54

    Mostly Cloudy

    • 44
    • 54

    Mostly Cloudy

    • 49
    • 57

    Rain

    • 51
    • 60

    Rain Likely

    • 48
    • 59

    Rain Likely

    • 46
    • 58

    Rain

Today 29 Jan San Francisco Peninsula Coast

Mostly cloudy. Highs in the mid 50s. West Winds around 5 Mph.

Tonight 29 Jan San Francisco Peninsula Coast

Mostly cloudy. Lows in the lower to mid 40s. Light Winds.

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Half Moon Bay - Princeton Temperature Statistics

January Temperature

Half Moon Bay Airport (0.6 miles)

  • Lowest 27 January, 2025

    33.8 °F

  • Average January

    51.8 °F

  • Highest 22 January, 2025

    69.8 °F

Climate (2020–Present)

Half Moon Bay Airport (0.6 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    60.5 °F
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