Point Diablo Weather Forecast

    • 56
    • 62

    Increasing Clouds

    • 57
    • 71

    Increasing Clouds

    • 59
    • 68

    Mostly Cloudy

    • 54
    • 65

    Partly Sunny

    • 55
    • 62

    Partly Sunny

    • 54
    • 61

    Partly Sunny

    • 55
    • 65

    Mostly Sunny

Today 22 Sep Coastal North Bay Including Point Reyes National Seashore

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

Tonight 22 Sep Coastal North Bay Including Point Reyes National Seashore

Mostly clear in the evening then becoming partly cloudy. Patchy fog after midnight. Lows in the lower 50s. Northwest Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Point Diablo Temperature Statistics

September Temperature

San Francisco, San Francisco International Airport (15.5 miles)

  • Lowest 7 September, 2026

    56.6 °F

  • Average September

    67.3 °F

  • Highest 9 September, 2026

    94.6 °F

Climate (2021–2026)

San Francisco, San Francisco International Airport (15.5 miles)

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  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    58.7 °F

  • Average High 2021–2026

    66.8 °F
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