San Mateo Rainfall Forecast

  • 75%
  • 30%
  • 10%
  • No Rain
  • No Rain
  • No Rain
  • No Rain
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  • Rainfall Probability Forecast NOAA

  • Rain Today Real-Time

San Mateo Rainfall Statistics

January Rainfall

San Francisco, San Francisco International Airport (4.3 miles)

  • Total Rainfall January

    1.3in

  • Daily Average January

    0.4in

  • Wettest Day 1 January, 2026

    0.7in

  • Wet Days January

    3/5 (60%)

Climate (2010–Present)

San Francisco, San Francisco International Airport (4.3 miles)

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  • Annual Average 2021–2025

    20.2in

  • Monthly Average 2021–2025

    1.7in

  • Daily Average 2021–2026

    0.1in

  • Wettest Day 24 October, 2021

    4in
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