Shell Beach Weather Forecast

    • 56
    • 72

    Increasing Clouds

    • 56
    • 66

    Chance Rain Showers

    • 56
    • 65

    Slight Chance Rain Showers

    • 55
    • 65

    Partly Sunny

    • 56
    • 69

    Mostly Sunny

    • 57
    • 72

    Partly Sunny

    • 57
    • 66

    Chance Rain Showers

Today 17 Sep Coastal North Bay Including Point Reyes National Seashore

Sunny. Highs in the upper 60s to lower 80s. West Winds 5 to 10 Mph.

Tonight 17 Sep Coastal North Bay Including Point Reyes National Seashore

Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 50s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Shell Beach Temperature Statistics

September Temperature

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

  • Lowest 14 September, 2025

    48 °F

  • Average September

    65.7 °F

  • Highest 1 September, 2025

    99 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    45.3 °F

  • Average 2020–2025

    57.9 °F

  • Average High 2020–2025

    72.8 °F
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