Tomales Bay State Park Weather Forecast

    • 40
    • 50

    Mostly Cloudy

    • 40
    • 53

    Decreasing Clouds

    • 41
    • 54

    Partly Sunny

    • 42
    • 59

    Mostly Sunny

    • 41
    • 59

    Mostly Sunny

    • 43
    • 58

    Mostly Sunny

    • 43
    • 61

    Mostly Sunny

Today 17 Jan Coastal North Bay Including Point Reyes National Seashore

Mostly cloudy late in the morning then becoming partly cloudy. Highs in the mid 50s. West Winds around 5 Mph.

Tonight 17 Jan Coastal North Bay Including Point Reyes National Seashore

Mostly cloudy. Patchy fog after midnight. Lows in the lower 40s. Northwest Winds around 5 Mph in the evening. Becoming light.

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Tomales Bay State Park Temperature Statistics

January Temperature

Petaluma Municipal Airport (18 miles)

  • Lowest 14 January, 2025

    30.2 °F

  • Average January

    48.6 °F

  • Highest 7 January, 2025

    68 °F

Climate (2020–Present)

Petaluma Municipal Airport (18 miles)

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  • Average Low 2020–2025

    44.7 °F

  • Average 2020–2025

    55.6 °F

  • Average High 2020–2025

    69.7 °F
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