San Francisco Bay - Castro Point Weather Forecast

    • 52
    • 62

    Mostly Sunny

    • 51
    • 57

    Becoming Sunny

    • 54
    • 59

    Partly Sunny

    • 51
    • 57

    Breezy

    • 52
    • 61

    Mostly Sunny

    • 53
    • 63

    Mostly Sunny

    • 53
    • 61

    Partly Sunny

Today 30 Apr San Francisco Bay Shoreline

Mostly cloudy in the morning then becoming sunny. Highs in the 60s to upper 70s. Light Winds. Becoming northwest 5 to 15 Mph in the afternoon.

Tonight 30 Apr San Francisco Bay Shoreline

Mostly clear. Lows in the lower 50s. West Winds 5 to 10 Mph.

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San Francisco Bay - Castro Point Temperature Statistics

April Temperature

Novato / Gnoss Field (16.2 miles)

  • Lowest 3 April, 2025

    41 °F

  • Average April

    56.2 °F

  • Highest 13 April, 2025

    82.4 °F

Climate (2020–Present)

Novato / Gnoss Field (16.2 miles)

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  • Average Low 2020–2025

    45.9 °F

  • Average 2020–2025

    57.7 °F

  • Average High 2020–2025

    72.8 °F
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