Half Moon Bay - Princeton Weather Forecast

    • 59
    • 68

    Mostly Cloudy

    • 56
    • 68

    Mostly Cloudy

    • 54
    • 65

    Mostly Cloudy

    • 53
    • 61

    Mostly Cloudy

    • 53
    • 61

    Cloudy

    • 54
    • 61

    Areas Fog

    • 55
    • 62

    Cloudy

Today 13 Jul San Francisco Peninsula Coast

Mostly cloudy. Highs in the lower 70s. West Winds around 5 Mph.

Tonight 13 Jul San Francisco Peninsula Coast

Partly cloudy. Lows in the upper 50s. West Winds around 5 Mph.

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Half Moon Bay - Princeton Temperature Statistics

July Temperature

Half Moon Bay Airport (0.6 miles)

  • Lowest 1 July, 2026

    53.6 °F

  • Average July

    56.3 °F

  • Highest 2 July, 2026

    62.6 °F

Climate (2021–2026)

Half Moon Bay Airport (0.6 miles)

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  • Average Low 2021–2026

    48.5 °F

  • Average 2021–2026

    55 °F

  • Average High 2021–2026

    61 °F
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