San Pablo Bay - Gallinas Creek Entrance Weather Forecast

    • 55
    • 78

    Mostly Sunny

    • 57
    • 74

    Partly Sunny

    • 56
    • 78

    Mostly Sunny

    • 56
    • 81

    Mostly Sunny

    • 56
    • 79

    Partly Sunny

    • 57
    • 76

    Partly Sunny

Today 15 Sep North Bay Interior Valleys

Sunny. Patchy fog in the morning. Highs in the lower 70s to mid 80s. South Winds 5 to 15 Mph.

Tonight 15 Sep North Bay Interior Valleys

Mostly clear except patchy fog. Lows in the 50s. Southwest Winds up to 5 Mph.

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San Pablo Bay - Gallinas Creek Entrance Temperature Statistics

September Temperature

Novato / Gnoss Field (8.7 miles)

  • Lowest 6 September, 2026

    48.2 °F

  • Average September

    67.6 °F

  • Highest 9 September, 2026

    100.4 °F

Climate (2021–2026)

Novato / Gnoss Field (8.7 miles)

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  • Average Low 2021–2026

    47 °F

  • Average 2021–2026

    57.8 °F

  • Average High 2021–2026

    72.5 °F
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