Agate Beach Weather Forecast

    • 54
    • 60

    Mostly Cloudy

    • 54
    • 65

    Partly Sunny

    • 57
    • 74

    Partly Sunny

    • 58
    • 73

    Partly Sunny

    • 54
    • 68

    Partly Sunny

    • 54
    • 67

    Partly Sunny

Today 21 Sep Coastal North Bay Including Point Reyes National Seashore

Mostly cloudy in the morning then becoming partly cloudy. Patchy fog in the morning. A slight chance of drizzle in the morning. Highs in the 60s. West Winds 5 to 10 Mph.

Tonight 21 Sep Coastal North Bay Including Point Reyes National Seashore

Mostly cloudy. Patchy fog. Lows in the lower 50s. West Winds around 5 Mph in the evening. Becoming light.

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Agate Beach Temperature Statistics

September Temperature

Novato / Gnoss Field (18.6 miles)

  • Lowest 6 September, 2026

    48.2 °F

  • Average September

    66.6 °F

  • Highest 9 September, 2026

    100.4 °F

Climate (2021–2026)

Novato / Gnoss Field (18.6 miles)

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  • Average Low 2021–2026

    47 °F

  • Average 2021–2026

    57.8 °F

  • Average High 2021–2026

    72.5 °F
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