San Gregorio State Beach Weather Forecast

    • 44
    • 57

    Becoming Sunny

    • 46
    • 59

    Partly Sunny

    • 47
    • 60

    Partly Sunny

    • 49
    • 61

    Mostly Sunny

    • 51
    • 63

    Mostly Sunny

    • 51
    • 64

    Mostly Sunny

Today 9 Jan San Francisco Peninsula Coast

Partly cloudy in the morning then becoming sunny. Highs in the upper 50s. Northeast Winds 5 to 15 Mph.

Tonight 9 Jan San Francisco Peninsula Coast

Mostly clear. Lows in the lower 40s. Northeast Winds 5 to 10 Mph.

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San Gregorio State Beach Temperature Statistics

January Temperature

Half Moon Bay Airport (14.3 miles)

  • Lowest 6 January, 2026

    46.4 °F

  • Average January

    56.3 °F

  • Highest 6 January, 2026

    62.6 °F

Climate (2021–Present)

Half Moon Bay Airport (14.3 miles)

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  • Average Low 2021–2026

    48.2 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    60.5 °F
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