Open Water Data

Sand Beach

Half Moon Bay, California, United States

Data Sources
  • E. coli
    FAIL 63mpn (single) Mon, Mar 17, 2025
  • Enterococcus
    FAIL 10mpn (single) Mon, Aug 19, 2024 at 1:28pm
  • Air Temperature
    15.1°C / 59.2°F (air) Fri, Apr 10, 2026 at 1:45am
  • Wind
    7.6 - 12.1km/h S 173° Fri, Apr 10, 2026 at 1:45am
  • Overcast
    Overcast Fri, Apr 10, 2026 at 1:45am
  • Precipitation
    0mm Fri, Apr 10, 2026 at 1:45am
  • Air Visibility
    16km Fri, Apr 10, 2026 at 1:45am
  • Humidity
    94% Fri, Apr 10, 2026 at 1:45am

Photo by John Loo

Sand Beach is located in the city of Half Moon Bay, in the western part of San Mateo County. Come enjoy a day at the beach with your friends and families in one of Half Moon Bay's numerous set of beaches, Sand Beach. You can characterize this beach as a sandy unspoiled beach where the most common activities range from surfing, swimming, and fishing, to building sand castles, and relaxing while sunbathing.

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

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