Half Moon Bay - Princeton Weather Forecast

    • 57
    • 65

    Mostly Cloudy

    • 58
    • 66

    Mostly Cloudy

    • 58
    • 65

    Cloudy

    • 59
    • 64

    Cloudy

    • 58
    • 65

    Mostly Cloudy

    • 57
    • 64

    Areas Fog

    • 58
    • 63

    Cloudy

Today 10 Aug San Francisco Peninsula Coast

Mostly cloudy. Highs in the upper 60s. Southwest Winds 5 to 10 Mph.

Tonight 10 Aug San Francisco Peninsula Coast

Mostly cloudy. Lows in the upper 50s. Southwest Winds 5 to 10 Mph.

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Half Moon Bay - Princeton Temperature Statistics

August Temperature

Half Moon Bay Airport (0.6 miles)

  • Lowest 2 August, 2026

    50 °F

  • Average August

    59.1 °F

  • Highest 2 August, 2026

    66.2 °F

Climate (2021–2026)

Half Moon Bay Airport (0.6 miles)

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  • Average Low 2021–2026

    48.6 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    61 °F
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