Agate Beach Weather Forecast

    • 57
    • 74

    Mostly Sunny

    • 61
    • 74

    Partly Sunny

    • 63
    • 78

    Partly Sunny

    • 60
    • 74

    Partly Sunny

    • 57
    • 69

    Partly Sunny

    • 57
    • 67

    Partly Sunny

Today 7 Sep Coastal North Bay Including Point Reyes National Seashore

Sunny. Highs in the upper 60s to mid 70s. Light Winds. Becoming west 5 to 10 Mph in the afternoon.

Tonight 7 Sep Coastal North Bay Including Point Reyes National Seashore

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 50s. Northwest Winds 5 to 10 Mph in the evening. Becoming light.

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Agate Beach Temperature Statistics

September Temperature

Novato / Gnoss Field (18.6 miles)

  • Lowest 4 September, 2026

    51.8 °F

  • Average September

    64.4 °F

  • Highest 2 September, 2026

    77 °F

Climate (2021–2026)

Novato / Gnoss Field (18.6 miles)

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  • Average Low 2021–2026

    46.9 °F

  • Average 2021–2026

    57.8 °F

  • Average High 2021–2026

    72.5 °F
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