San Rafael Bay - East Marin Island Weather Forecast

    • 49
    • 60

    Mostly Sunny

    • 49
    • 59

    Partly Sunny

    • 47
    • 59

    Partly Sunny

    • 47
    • 58

    Mostly Sunny

    • 48
    • 57

    Partly Sunny

    • 49
    • 56

    Mostly Cloudy

Today 16 Jan North Bay Interior Valleys

Sunny. Highs in the 60s to lower 70s. East Winds 5 to 10 Mph.

Tonight 16 Jan North Bay Interior Valleys

Clear, breezy. Patchy dense fog. Lows in the lower 40s to mid 50s. Northeast Winds 20 to 30 Mph.

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San Rafael Bay - East Marin Island Temperature Statistics

January Temperature

Novato / Gnoss Field (13 miles)

  • Lowest 12 January, 2026

    33.8 °F

  • Average January

    50.7 °F

  • Highest 13 January, 2026

    64.4 °F

Climate (2021–Present)

Novato / Gnoss Field (13 miles)

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  • Average Low 2021–2026

    46.3 °F

  • Average 2021–2026

    57.4 °F

  • Average High 2021–2026

    72.3 °F
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