Estero Americano Mouth Weather Forecast

    • 54
    • 59

    Increasing Clouds

    • 53
    • 60

    Mostly Cloudy

    • 54
    • 61

    Partly Sunny

    • 54
    • 62

    Mostly Cloudy

    • 53
    • 60

    Mostly Cloudy

    • 54
    • 62

    Partly Sunny

Today 16 Sep Coastal North Bay Including Point Reyes National Seashore

Partly cloudy. Highs in the 60s. West Winds 10 to 15 Mph.

Tonight 16 Sep Coastal North Bay Including Point Reyes National Seashore

Mostly cloudy. Patchy fog after midnight. A slight chance of rain after midnight. Lows in the mid 50s. West Winds 5 to 10 Mph in the evening. Becoming light.

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Estero Americano Mouth Temperature Statistics

September Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (16.8 miles)

  • Lowest 5 September, 2026

    46.7 °F

  • Average September

    68.2 °F

  • Highest 10 September, 2026

    101.6 °F

Climate (2021–2026)

Santa Rosa, Santa Rosa Sonoma County Airport (16.8 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    58.7 °F

  • Average High 2021–2026

    72.8 °F
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