Half Moon Bay Airport Weather Forecast

    • 51
    • 62

    Increasing Clouds

    • 51
    • 61

    Mostly Cloudy

    • 52
    • 62

    Rain Showers

    • 50
    • 59

    Rain Showers

    • 51
    • 59

    Slight Chance Rain

    • 50
    • 59

    Partly Sunny

Today 18 Apr San Francisco Peninsula Coast

Partly cloudy. Highs in the upper 60s. Light Winds. Becoming west around 5 Mph in the afternoon.

Tonight 18 Apr San Francisco Peninsula Coast

Mostly cloudy. Lows around 50. West Winds around 5 Mph in the evening. Becoming light.

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Half Moon Bay Airport Temperature Statistics

April Temperature

Half Moon Bay Airport (0 miles)

  • Lowest 3 April, 2026

    42.8 °F

  • Average April

    57 °F

  • Highest 4 April, 2026

    75.2 °F

Climate (2021–Present)

Half Moon Bay Airport (0 miles)

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  • Average Low 2021–2026

    48.4 °F

  • Average 2021–2026

    54.9 °F

  • Average High 2021–2026

    60.9 °F
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