Portola Weather Forecast

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    Rain

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    Chance Rain

Today 22 Dec San Francisco

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

Tonight 22 Dec San Francisco

Rain. Lows in the lower 50s. North Winds up to 5 Mph. Becoming southeast 5 to 15 Mph after midnight.

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Portola Temperature Statistics

December Temperature

San Francisco, San Francisco International Airport (7.5 miles)

  • Lowest 15 December, 2025

    44.1 °F

  • Average December

    50.6 °F

  • Highest 19 December, 2025

    64 °F

Climate (2020–Present)

San Francisco, San Francisco International Airport (7.5 miles)

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  • Average Low 2020–2025

    52.4 °F

  • Average 2020–2025

    58.3 °F

  • Average High 2020–2025

    66.5 °F
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