Half Moon Bay State Beach Weather Forecast

    • 57
    • 67

    Decreasing Clouds

    • 56
    • 71

    Sunny

    • 57
    • 79

    Sunny

    • 56
    • 75

    Mostly Sunny

    • 55
    • 68

    Partly Sunny

    • 55
    • 68

    Partly Sunny

Today 29 Sep San Francisco Peninsula Coast

Mostly cloudy. Highs near 70. Light Winds. Becoming southwest around 5 Mph in the afternoon.

Tonight 29 Sep San Francisco Peninsula Coast

Partly cloudy in the evening then becoming cloudy. Lows in the upper 50s. Northwest Winds 5 to 10 Mph.

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Half Moon Bay State Beach Temperature Statistics

September Temperature

Half Moon Bay Airport (4.3 miles)

  • Lowest 11 September, 2020

    48.2 °F
  • Average September

    60.5 °F
  • Highest 27 September, 2020

    80.6 °F

Climate (2010–Present)

Half Moon Bay Airport (4.3 miles)

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  • Average Low 2010–Present

    49 °F
  • Average 2010–Present

    55.3 °F
  • Average High 2010–Present

    61.1 °F
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