Francis Beach Weather Forecast

    • 55
    • 67

    Mostly Cloudy

    • 55
    • 68

    Mostly Cloudy

    • 55
    • 69

    Mostly Cloudy

    • 56
    • 64

    Mostly Cloudy

    • 56
    • 67

    Patchy Fog

    • 57
    • 70

    Partly Sunny

Today 17 Sep San Francisco Peninsula Coast

Mostly cloudy in the morning then becoming partly cloudy. A slight chance of drizzle in the morning. Highs in the upper 60s. Southwest Winds around 5 Mph.

Tonight 17 Sep San Francisco Peninsula Coast

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog in the evening. Areas of fog after midnight. Lows in the 50s. West Winds around 5 Mph in the evening. Becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Francis Beach Temperature Statistics

September Temperature

Half Moon Bay Airport (3.7 miles)

  • Lowest 8 September, 2026

    50 °F

  • Average September

    62.4 °F

  • Highest 9 September, 2026

    89.6 °F

Climate (2021–2026)

Half Moon Bay Airport (3.7 miles)

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  • Average Low 2021–2026

    48.8 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    61.1 °F
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