Open Water Data

Aquatic Park

San Mateo, California, United States

  • E. coli
    FAIL 1333mpn (single) Tue, Mar 18, 2025
  • Enterococcus
    FAIL 201mpn (single) Tue, Mar 18, 2025
  • Water Quality Status
    Failed tests Tue, Mar 18, 2025
  • Air Temperature
    15.6°C / 60.1°F (air) Tue, Jul 15, 2025 at 10:00pm
  • Wind
    10.8 - 15.3km/h SW 228° Tue, Jul 15, 2025 at 10:00pm
  • Cloudy
    Cloudy Tue, Jul 15, 2025 at 10:00pm
  • Precipitation
    0mm Tue, Jul 15, 2025 at 10:00pm
  • Air Visibility
    16km Tue, Jul 15, 2025 at 10:00pm
  • Humidity
    78% Tue, Jul 15, 2025 at 10:00pm

Photo by Sharon Hahn Darlin

This aquatic park and boat launch located in Seal Slough just north of the San Mateo Bridge.

The description above was copied from or heavily based on Swim Guide, with permission.

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