San Gregorio State Beach Weather Forecast

    • 53
    • 67

    Partly Sunny

    • 55
    • 73

    Becoming Sunny

    • 57
    • 75

    Mostly Sunny

    • 57
    • 74

    Mostly Sunny

    • 57
    • 74

    Mostly Sunny

    • 55
    • 75

    Mostly Sunny

    • 51
    • 67

    Mostly Cloudy

Today 15 Mar San Francisco Peninsula Coast

Sunny. Highs in the mid 70s. Northwest Winds 5 to 10 Mph.

Tonight 15 Mar San Francisco Peninsula Coast

Partly cloudy. Lows in the 50s. Northwest Winds 5 to 10 Mph in the evening. Becoming light.

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San Gregorio State Beach Temperature Statistics

March Temperature

Half Moon Bay Airport (14.3 miles)

  • Lowest 11 March, 2026

    41 °F

  • Average March

    55.6 °F

  • Highest 7 March, 2026

    73.4 °F

Climate (2021–Present)

Half Moon Bay Airport (14.3 miles)

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  • Average Low 2021–2026

    48.3 °F

  • Average 2021–2026

    54.8 °F

  • Average High 2021–2026

    60.7 °F
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