Dunes Beach Weather Forecast

    • 51
    • 62

    Rain

    • 48
    • 60

    Rain

    • 48
    • 61

    Rain

    • 49
    • 61

    Rain

    • 48
    • 59

    Rain

    • 45
    • 59

    Rain Likely

Today 21 Dec San Francisco Peninsula Coast

Rain in the Morning, then Showers and a slight chance of Thunderstorms in the afternoon. Highs in the lower 60s. South Winds 10 to 20 Mph with Gusts to around 40 Mph.

Tonight 21 Dec San Francisco Peninsula Coast

Breezy. Showers and a slight chance of Thunderstorms in the Evening, then rain after midnight. Lows in the lower 50s. South Winds 20 to 30 Mph decreasing to 10 to 20 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Dunes Beach Temperature Statistics

December Temperature

Half Moon Bay Airport (3.1 miles)

  • Lowest 15 December, 2025

    39.2 °F

  • Average December

    53.1 °F

  • Highest 11 December, 2025

    71.6 °F

Climate (2020–Present)

Half Moon Bay Airport (3.1 miles)

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  • Average Low 2020–2025

    48 °F

  • Average 2020–2025

    54.5 °F

  • Average High 2020–2025

    60.4 °F
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