San Francisco Bay - East Brother Lighthouse Weather Forecast

    • 57
    • 64

    Increasing Clouds

    • 56
    • 62

    Partly Sunny

    • 58
    • 63

    Mostly Sunny

    • 60
    • 69

    Mostly Sunny

    • 59
    • 65

    Partly Sunny

    • 57
    • 64

    Mostly Sunny

Today 12 Aug San Francisco Bay Shoreline

Mostly cloudy in the morning then becoming sunny. Highs in the 70s to lower 80s. Northwest Winds 5 to 10 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 12 Aug San Francisco Bay Shoreline

Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 50s. Northwest Winds 10 to 20 Mph becoming 5 to 10 Mph after midnight.

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San Francisco Bay - East Brother Lighthouse Temperature Statistics

August Temperature

Novato / Gnoss Field (13.7 miles)

  • Lowest 2 August, 2025

    48.2 °F

  • Average August

    64.9 °F

  • Highest 8 August, 2025

    96.8 °F

Climate (2020–Present)

Novato / Gnoss Field (13.7 miles)

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  • Average Low 2020–2025

    46 °F

  • Average 2020–2025

    57.5 °F

  • Average High 2020–2025

    72.6 °F
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