Martins Beach Weather Forecast

    • 54
    • 60

    Mostly Cloudy

    • 54
    • 62

    Partly Sunny

    • 55
    • 66

    Partly Sunny

    • 56
    • 66

    Mostly Cloudy

    • 56
    • 65

    Mostly Cloudy

    • 55
    • 65

    Mostly Cloudy

Today 27 Sep San Francisco Peninsula Coast

Mostly cloudy. A slight chance of drizzle. Highs around 60. West Winds 5 to 15 Mph.

Tonight 27 Sep San Francisco Peninsula Coast

Mostly cloudy. A slight chance of drizzle. Lows in the lower 50s. West Winds 5 to 15 Mph.

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Martins Beach Temperature Statistics

September Temperature

Half Moon Bay Airport (10.6 miles)

  • Lowest 8 September, 2026

    50 °F

  • Average September

    61 °F

  • Highest 9 September, 2026

    89.6 °F

Climate (2021–2026)

Half Moon Bay Airport (10.6 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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