San Gregorio Weather Forecast

    • 48
    • 67

    Mostly Sunny

    • 49
    • 66

    Partly Sunny

    • 49
    • 65

    Mostly Cloudy

    • 48
    • 63

    Partly Sunny

    • 48
    • 62

    Partly Sunny

    • 47
    • 62

    Mostly Cloudy

Today 19 Jan San Francisco Peninsula Coast

Sunny. Highs in the mid 60s to lower 70s. Northeast Winds 5 to 10 Mph.

Tonight 19 Jan San Francisco Peninsula Coast

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 40s to lower 50s. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Gregorio Temperature Statistics

January Temperature

Half Moon Bay Airport (14.3 miles)

  • Lowest 10 January, 2026

    39.2 °F

  • Average January

    55.1 °F

  • Highest 15 January, 2026

    73.4 °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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