San Joaquin River - West Island Weather Forecast

    • 61
    • 83

    Mostly Sunny

    • 65
    • 93

    Sunny

    • 62
    • 90

    Mostly Sunny

    • 58
    • 81

    Mostly Sunny

    • 57
    • 76

    Mostly Sunny

    • 57
    • 74

    Sunny

Today 29 May Carquinez Strait and Delta

Mostly sunny. Warmer. Highs 83 to 89. West Winds up to 15 Mph.

Tonight 29 May Carquinez Strait and Delta

Mostly clear. Lows around 58. West Winds 10 to 15 Mph.

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San Joaquin River - West Island Temperature Statistics

May Temperature

Concord, Buchanan Field (14.9 miles)

  • Lowest 4 May, 2025

    49.6 °F

  • Average May

    65.2 °F

  • Highest 9 May, 2025

    92.6 °F

Climate (2020–Present)

Concord, Buchanan Field (14.9 miles)

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  • Average Low 2020–2025

    50.8 °F

  • Average 2020–2025

    61.5 °F

  • Average High 2020–2025

    74.7 °F
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