Tomales Bay Entrance Weather Forecast

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    Rain

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    Rain

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    Rain

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    Rain

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    Rain Likely

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    Rain

Today 18 Dec Coastal North Bay Including Point Reyes National Seashore

Patchy fog in the morning. A slight chance of rain in the Morning, then rain likely in the afternoon. Highs in the upper 50s. Light Winds. Becoming southwest around 5 Mph in the afternoon.

Tonight 18 Dec Coastal North Bay Including Point Reyes National Seashore

Patchy fog in the evening. Rain likely. Lows in the lower 50s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tomales Bay Entrance Temperature Statistics

December Temperature

Petaluma Municipal Airport (19.9 miles)

  • Lowest 4 December, 2025

    33.8 °F

  • Average December

    43 °F

  • Highest 3 December, 2025

    66.2 °F

Climate (2020–Present)

Petaluma Municipal Airport (19.9 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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