Half Moon Bay Airport Weather Forecast

    • 61
    • 74

    Decreasing Clouds

    • 60
    • 72

    Partly Sunny

    • 62
    • 72

    Partly Sunny

    • 59
    • 71

    Partly Sunny

    • 59
    • 68

    Mostly Cloudy

    • 59
    • 67

    Mostly Cloudy

Today 4 Oct San Francisco Peninsula Coast

Mostly cloudy. Highs around 80. Northeast Winds up to 5 Mph. Becoming west in the afternoon.

Tonight 4 Oct San Francisco Peninsula Coast

Mostly clear in the evening then becoming partly cloudy. Lows around 60. West Winds up to 5 Mph in the evening becoming light.

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Half Moon Bay Airport Temperature Statistics

October Temperature

Half Moon Bay Airport (0 miles)

  • Lowest 1 October, 2026

    51.8 °F

  • Average October

    56.8 °F

  • Highest 2 October, 2026

    66.2 °F

Climate (2021–2026)

Half Moon Bay Airport (0 miles)

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  • Average Low 2021–2026

    48.8 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    61.1 °F
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