San Rafael Bay - San Rafael Creek Entrance Weather Forecast

    • 59
    • 71

    Mostly Sunny

    • 58
    • 69

    Breezy

    • 57
    • 70

    Mostly Sunny

    • 57
    • 73

    Mostly Sunny

    • 57
    • 69

    Partly Sunny

    • 58
    • 68

    Partly Sunny

    • 58
    • 70

    Mostly Sunny

Today 11 Sep North Bay Interior Valleys

Sunny. Highs in the mid 70s to upper 80s. Southwest Winds 10 to 20 Mph.

Tonight 11 Sep North Bay Interior Valleys

Mostly clear. Lows in the 50s. Southwest Winds 5 to 15 Mph.

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San Rafael Bay - San Rafael Creek Entrance Temperature Statistics

September Temperature

Novato / Gnoss Field (12.4 miles)

  • Lowest 6 September, 2026

    48.2 °F

  • Average September

    67.2 °F

  • Highest 9 September, 2026

    100.4 °F

Climate (2021–2026)

Novato / Gnoss Field (12.4 miles)

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  • Average Low 2021–2026

    46.9 °F

  • Average 2021–2026

    57.8 °F

  • Average High 2021–2026

    72.5 °F
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