Half Moon Bay Weather Forecast

    • 51
    • 64

    Increasing Clouds

    • 51
    • 63

    Mostly Cloudy

    • 52
    • 65

    Mostly Cloudy

    • 53
    • 66

    Areas Fog

    • 54
    • 67

    Patchy Fog

    • 52
    • 66

    Mostly Cloudy

Today 20 Jun San Francisco Peninsula Coast

Mostly cloudy late in the morning then becoming partly cloudy. Highs in the mid 60s. Southwest Winds 5 to 10 Mph.

Tonight 20 Jun San Francisco Peninsula Coast

Mostly cloudy. Patchy fog after midnight. Lows in the lower 50s. West Winds around 5 Mph.

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Half Moon Bay Temperature Statistics

June Temperature

Half Moon Bay Airport (5 miles)

  • Lowest 1 June, 2026

    44.6 °F

  • Average June

    56.7 °F

  • Highest 11 June, 2026

    68 °F

Climate (2021–2026)

Half Moon Bay Airport (5 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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