San Pablo Bay - Gallinas Creek Entrance Weather Forecast

    • 55
    • 77

    Mostly Sunny

    • 54
    • 77

    Mostly Sunny

    • 59
    • 86

    Mostly Sunny

    • 61
    • 87

    Partly Sunny

    • 65
    • 89

    Partly Sunny

    • 62
    • 87

    Mostly Sunny

    • 59
    • 80

    Mostly Sunny

Today 5 Sep North Bay Interior Valleys

Sunny. Highs in the upper 60s to lower 80s. Southwest Winds 10 to 20 Mph.

Tonight 5 Sep North Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Patchy fog after midnight. Lows in the upper 40s to mid 50s. West Winds 5 to 15 Mph.

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San Pablo Bay - Gallinas Creek Entrance Temperature Statistics

September Temperature

Novato / Gnoss Field (8.7 miles)

  • Lowest 2 September, 2026

    57.2 °F

  • Average September

    64.7 °F

  • Highest 2 September, 2026

    77 °F

Climate (2021–2026)

Novato / Gnoss Field (8.7 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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