Half Moon Bay Weather Forecast

    • 43
    • 54

    Increasing Clouds

    • 48
    • 57

    Rain

    • 51
    • 60

    Rain

    • 48
    • 60

    Rain Likely

    • 44
    • 58

    Rain

    • 43
    • 56

    Rain

Today 30 Jan San Francisco Peninsula Coast

Mostly cloudy. Highs in the mid 50s. Light Winds. Becoming west around 5 Mph in the afternoon.

Tonight 30 Jan San Francisco Peninsula Coast

Mostly cloudy. A chance of rain after midnight. Lows in the mid 40s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Half Moon Bay Temperature Statistics

January Temperature

Half Moon Bay Airport (5 miles)

  • Lowest 27 January, 2025

    33.8 °F

  • Average January

    51.7 °F

  • Highest 22 January, 2025

    69.8 °F

Climate (2020–Present)

Half Moon Bay Airport (5 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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