Half Moon Bay Weather Forecast

    • 49
    • 58

    Mostly Cloudy

    • 49
    • 65

    Partly Sunny

    • 50
    • 73

    Partly Sunny

    • 50
    • 66

    Partly Sunny

    • 48
    • 62

    Partly Sunny

    • 48
    • 61

    Partly Sunny

Today 28 May San Francisco Peninsula Coast

Mostly cloudy. Patchy drizzle in the morning. Highs around 60. Northwest Winds 5 to 15 Mph.

Tonight 28 May San Francisco Peninsula Coast

Mostly cloudy. Patchy drizzle after midnight. Lows around 50. Northwest Winds 10 to 15 Mph.

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Half Moon Bay Temperature Statistics

May Temperature

Half Moon Bay Airport (5 miles)

  • Lowest 21 May, 2025

    41 °F

  • Average May

    53.6 °F

  • Highest 5 May, 2025

    69.8 °F

Climate (2020–Present)

Half Moon Bay Airport (5 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    54.5 °F

  • Average High 2020–2025

    60.4 °F
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