Half Moon Bay State Beach Weather Forecast

    • 53
    • 60

    Becoming Sunny

    • 55
    • 66

    Mostly Sunny

    • 56
    • 70

    Mostly Sunny

    • 56
    • 70

    Mostly Cloudy

    • 56
    • 67

    Mostly Cloudy

    • 56
    • 64

    Mostly Cloudy

Today 23 Sep San Francisco Peninsula Coast

Mostly cloudy in the morning then becoming partly cloudy. Patchy fog in the morning. Highs in the lower 60s. West Winds 10 to 20 Mph.

Tonight 23 Sep San Francisco Peninsula Coast

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the lower 50s. West Winds 10 to 20 Mph. Becoming southwest 5 to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Half Moon Bay State Beach Temperature Statistics

September Temperature

Half Moon Bay Airport (4.3 miles)

  • Lowest 11 September, 2018

    44.6 °F
  • Average September

    56.9 °F
  • Highest 20 September, 2018

    69.8 °F

Climate (2010–Present)

Half Moon Bay Airport (4.3 miles)

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  • Average Low 2010–Present

    48.7 °F
  • Average 2010–Present

    55.2 °F
  • Average High 2010–Present

    61.3 °F
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