Half Moon Bay - Princeton Weather Forecast

    • 47
    • 60

    Increasing Clouds

    • 47
    • 59

    Mostly Cloudy

    • 46
    • 60

    Mostly Cloudy

    • 47
    • 61

    Sunny

    • 46
    • 65

    Mostly Sunny

    • 48
    • 64

    Partly Sunny

Today 13 Apr San Francisco Peninsula Coast

Partly cloudy in the morning then becoming sunny. Highs in the lower 60s. Northwest Winds 5 to 15 Mph.

Tonight 13 Apr San Francisco Peninsula Coast

Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 40s. Northwest Winds 5 to 15 Mph.

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Half Moon Bay - Princeton Temperature Statistics

April Temperature

Half Moon Bay Airport (0.6 miles)

  • Lowest 3 April, 2026

    42.8 °F

  • Average April

    57.9 °F

  • Highest 4 April, 2026

    75.2 °F

Climate (2021–Present)

Half Moon Bay Airport (0.6 miles)

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  • Average Low 2021–2026

    48.4 °F

  • Average 2021–2026

    54.9 °F

  • Average High 2021–2026

    60.8 °F
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