San Pablo Bay - Gallinas Creek Entrance Weather Forecast

    • 51
    • 72

    Mostly Sunny

    • 54
    • 80

    Mostly Sunny

    • 56
    • 89

    Sunny

    • 56
    • 89

    Mostly Sunny

    • 56
    • 81

    Partly Sunny

    • 56
    • 81

    Mostly Sunny

Today 27 Sep North Bay Interior Valleys

Sunny. Highs in the 60s to 70s. Southwest Winds 5 to 10 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 27 Sep North Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Lows in the 40s to mid 50s. West Winds 10 to 20 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

    65.8 °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

    72.4 °F
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