Carquinez Strait - Martinez Yacht Harbor Weather Forecast

    • 59
    • 82

    Mostly Sunny

    • 57
    • 76

    Mostly Sunny

    • 56
    • 79

    Mostly Sunny

    • 57
    • 82

    Sunny

    • 59
    • 91

    Sunny

    • 59
    • 92

    Sunny

Today 16 Aug East Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. A slight chance of drizzle in the morning. Highs in the upper 70s to mid 80s. Southwest Winds 10 to 20 Mph.

Tonight 16 Aug East Bay Interior Valleys

Mostly clear. Lows in the lower 60s. Southwest Winds 15 to 20 Mph. Becoming 5 to 15 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Carquinez Strait - Martinez Yacht Harbor Temperature Statistics

August Temperature

Concord, Buchanan Field (5 miles)

  • Lowest 2 August, 2025

    56.6 °F

  • Average August

    72.1 °F

  • Highest 8 August, 2025

    99.6 °F

Climate (2020–Present)

Concord, Buchanan Field (5 miles)

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  • Average Low 2020–2025

    50.8 °F

  • Average 2020–2025

    61.4 °F

  • Average High 2020–2025

    74.6 °F
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