Mussel Rock Park Weather Forecast

    • 59
    • 65

    Mostly Cloudy

    • 60
    • 63

    Chance Rain Showers

    • 60
    • 65

    Slight Chance Rain Showers

    • 60
    • 65

    Partly Sunny

    • 60
    • 66

    Partly Sunny

    • 60
    • 66

    Chance Rain Showers

Today 17 Sep San Francisco Peninsula Coast

Partly cloudy. Areas of dense fog in the morning. Highs in the mid 70s. Northwest Winds 5 to 10 Mph.

Tonight 17 Sep San Francisco Peninsula Coast

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

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Mussel Rock Park Temperature Statistics

September Temperature

San Francisco, San Francisco International Airport (7.5 miles)

  • Lowest 1 September, 2025

    57 °F

  • Average September

    65.5 °F

  • Highest 15 September, 2025

    82 °F

Climate (2020–Present)

San Francisco, San Francisco International Airport (7.5 miles)

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  • Average Low 2020–2025

    52.3 °F

  • Average 2020–2025

    58.3 °F

  • Average High 2020–2025

    66.7 °F
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