Muir Beach Weather Forecast

    • 54
    • 58

    Mostly Sunny

    • 55
    • 59

    Increasing Clouds

    • 54
    • 58

    Partly Sunny

    • 57
    • 66

    Partly Sunny

    • 57
    • 69

    Mostly Cloudy

    • 60
    • 68

    Chance Rain

    • 58
    • 68

    Mostly Cloudy

Today 4 Sep Coastal North Bay Including Point Reyes National Seashore

Sunny. Highs in the lower 60s. West Winds around 10 Mph.

Tonight 4 Sep Coastal North Bay Including Point Reyes National Seashore

Partly cloudy. Lows in the lower 50s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Muir Beach Temperature Statistics

September Temperature

Novato / Gnoss Field (19.3 miles)

  • Lowest 2 September, 2026

    57.2 °F

  • Average September

    65.4 °F

  • Highest 2 September, 2026

    77 °F

Climate (2021–2026)

Novato / Gnoss Field (19.3 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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