Agate Beach Weather Forecast

    • 57
    • 64

    Mostly Cloudy

    • 56
    • 65

    Mostly Cloudy

    • 58
    • 66

    Partly Sunny

    • 58
    • 68

    Mostly Cloudy

    • 58
    • 67

    Slight Chance Rain

    • 57
    • 66

    Slight Chance Rain

    • 57
    • 66

    Chance Rain

Today 4 Sep Coastal North Bay Including Point Reyes National Seashore

Mostly cloudy. Highs in the 60s. West Winds 5 to 10 Mph.

Tonight 4 Sep Coastal North Bay Including Point Reyes National Seashore

Mostly cloudy. A slight chance of drizzle. Lows in the mid 50s. West Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Agate Beach Temperature Statistics

September Temperature

Novato / Gnoss Field (18.6 miles)

  • Lowest 1 September, 2025

    51.8 °F

  • Average September

    64.5 °F

  • Highest 1 September, 2025

    89.6 °F

Climate (2020–Present)

Novato / Gnoss Field (18.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    46 °F

  • Average 2020–2025

    57.5 °F

  • Average High 2020–2025

    72.6 °F
Get WillyWeather+ to remove ads