Tomales Bay Weather Forecast

    • 40
    • 53

    Mostly Sunny

    • 41
    • 54

    Mostly Sunny

    • 43
    • 54

    Mostly Sunny

    • 46
    • 54

    Chance Rain

    • 47
    • 54

    Rain Likely

    • 46
    • 54

    Chance Rain

Today 28 Dec Coastal North Bay Including Point Reyes National Seashore

Sunny. Highs in the mid 50s. Northeast Winds around 5 Mph. Becoming south in the afternoon.

Tonight 28 Dec Coastal North Bay Including Point Reyes National Seashore

Mostly clear. Lows in the upper 30s. Northeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tomales Bay Temperature Statistics

December Temperature

Petaluma Municipal Airport (17.4 miles)

  • Lowest 4 December, 2025

    33.8 °F

  • Average December

    47 °F

  • Highest 3 December, 2025

    66.2 °F

Climate (2020–Present)

Petaluma Municipal Airport (17.4 miles)

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  • Average Low 2020–2025

    44.6 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    68.6 °F
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