Carquinez Strait - Mare Island Weather Forecast

    • 45
    • 63

    Becoming Sunny

    • 50
    • 64

    Sunny

    • 54
    • 67

    Breezy

    • 53
    • 72

    Breezy

    • 53
    • 75

    Mostly Sunny

    • 52
    • 71

    Partly Sunny

Today 4 Mar Carquinez Strait and Delta

Mostly cloudy in the morning then clearing. Highs around 66. West Winds 10 to 15 Mph with Gusts to around 25 Mph.

Tonight 4 Mar Carquinez Strait and Delta

Clear. Lows around 44. Northwest Winds 10 to 15 Mph with Gusts to around 25 Mph.

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  • Temperature Real-Time

Carquinez Strait - Mare Island Temperature Statistics

March Temperature

Napa, Napa County Airport (9.3 miles)

  • Lowest 1 March, 2026

    54 °F

  • Average March

    57.4 °F

  • Highest 1 March, 2026

    63 °F

Climate (2021–Present)

Napa, Napa County Airport (9.3 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    70.1 °F
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