San Francisco Bay - San Mateo Bridge (East End) Weather Forecast

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    Rain

    • 55
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    Rain

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    • 56

    Rain

    • 50
    • 58

    Rain

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    Rain

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    Rain

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    Rain Likely

Today 20 Dec San Francisco Bay Shoreline

Rain. Highs in the lower 60s. North Winds around 5 Mph.

Tonight 20 Dec San Francisco Bay Shoreline

Rain. Lows in the upper 50s. South Winds 10 to 20 Mph.

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San Francisco Bay - San Mateo Bridge (East End) Temperature Statistics

December Temperature

Hayward, Hayward Air Terminal (5 miles)

  • Lowest 3 December, 2025

    41 °F

  • Average December

    48.9 °F

  • Highest 3 December, 2025

    64.9 °F

Climate (2020–Present)

Hayward, Hayward Air Terminal (5 miles)

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  • Average Low 2020–2025

    52 °F

  • Average 2020–2025

    59.2 °F

  • Average High 2020–2025

    68.8 °F
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