Portuguese Beach Weather Forecast

    • 55
    • 63

    Decreasing Clouds

    • 54
    • 61

    Breezy

    • 54
    • 62

    Mostly Sunny

    • 53
    • 63

    Partly Sunny

    • 53
    • 63

    Partly Sunny

    • 53
    • 61

    Patchy Fog

    • 53
    • 61

    Patchy Fog

Today 11 Sep Coastal North Bay Including Point Reyes National Seashore

Sunny. Highs in the 60s to mid 70s. West Winds 10 to 15 Mph.

Tonight 11 Sep Coastal North Bay Including Point Reyes National Seashore

Partly cloudy. Lows in the mid 50s. West Winds 5 to 15 Mph.

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Portuguese Beach Temperature Statistics

September Temperature

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

  • Lowest 5 September, 2026

    46.7 °F

  • Average September

    67.4 °F

  • Highest 8 September, 2026

    98.7 °F

Climate (2021–2026)

Santa Rosa, Santa Rosa Sonoma County Airport (16.2 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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