Dunes Beach Weather Forecast

    • 53
    • 65

    Increasing Clouds

    • 54
    • 72

    Increasing Clouds

    • 54
    • 73

    Partly Sunny

    • 55
    • 71

    Patchy Fog

    • 56
    • 71

    Mostly Cloudy

    • 57
    • 70

    Partly Sunny

    • 56
    • 70

    Partly Sunny

Today 28 Sep San Francisco Peninsula Coast

Sunny. Highs in the mid 60s. Northwest Winds 10 to 15 Mph.

Tonight 28 Sep San Francisco Peninsula Coast

Partly cloudy. Lows in the lower 50s. Northwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Dunes Beach Temperature Statistics

September Temperature

Half Moon Bay Airport (3.1 miles)

  • Lowest 8 September, 2026

    50 °F

  • Average September

    60.8 °F

  • Highest 9 September, 2026

    89.6 °F

Climate (2021–2026)

Half Moon Bay Airport (3.1 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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