San Francisco Bay - South San Francisco Rainfall Forecast

  • 15%
  • No Rain
  • No Rain
  • No Rain
  • 20%
  • 60%
  • 60%
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San Francisco Bay - South San Francisco Rainfall Statistics

December Rainfall

San Francisco, San Francisco International Airport (3.1 miles)

  • Total Rainfall December

    2.3in

  • Daily Average December

    0.1in

  • Wettest Day 24 December, 2025

    0.9in

  • Wet Days December

    7/27 (26%)

Climate (2010–Present)

San Francisco, San Francisco International Airport (3.1 miles)

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  • Annual Average 2020–2024

    18.1in

  • Monthly Average 2020–2025

    1.6in

  • Daily Average 2020–2025

    0.1in

  • Wettest Day 24 October, 2021

    4in
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