Sonoma Coast State Beach Weather Forecast

    • 48
    • 56

    Increasing Clouds

    • 49
    • 55

    Mostly Cloudy

    • 54
    • 58

    Chance Rain

    • 53
    • 58

    Rain

    • 51
    • 56

    Chance Rain

    • 53
    • 55

    Rain Likely

Today 13 Dec Coastal North Bay Including Point Reyes National Seashore

Sunny. Highs in the lower 60s. East Winds 5 to 10 Mph. Becoming south in the afternoon.

Tonight 13 Dec Coastal North Bay Including Point Reyes National Seashore

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog. Lows in the mid 40s. Southeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sonoma Coast State Beach Temperature Statistics

December Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (16.2 miles)

  • Lowest 4 December, 2025

    34 °F

  • Average December

    44.7 °F

  • Highest 3 December, 2025

    68 °F

Climate (2020–Present)

Santa Rosa, Santa Rosa Sonoma County Airport (16.2 miles)

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  • Average Low 2020–2025

    45.5 °F

  • Average 2020–2025

    57.9 °F

  • Average High 2020–2025

    72.5 °F
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