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Photo: Half Moon Bay State Beach 1 2021-05-06 by FASTILY (CC BY-SA 4.0) License

Half Moon Bay Beach

Park · Half Moon Bay, California

Cool todaycamping-nearbyPublic restroomWheelchair accessible parking lot

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Current water conditions

Water temp
69°F
21°C
Cool water — ease in carefully. Cool enough to cause cold-water shock on a sudden entry. Get in gradually, let your breathing settle, and keep an eye on weaker swimmers.

Live data from NOAA buoy AAMC1 (21.5 mi away), as of Aug 21, 1:30 AM UTC. Conditions are for general information only and can change quickly — always judge the water in person and follow posted advisories before swimming.

Weather at Half Moon Bay Beach

H: 61° L: 56°
Fog
Fog
58°
|
Feels like 54°
Precipitation
68%
Humidity
100%
Wind
11 mph
UV Index
0.2
Water Conditions:
🥶Too cold for most swimmers🌧️Rain expected
12 AM
Fog
56°
3 AM
Mist
57°
6 AM
Mist
56°
9 AM
Mist
58°
12 PM
Mist
60°
3 PM
Overcast
61°
6 PM
Fog
58°
9 PM
Fog
57°

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Frequently asked questions

Where is Half Moon Bay Beach?
Half Moon Bay Beach is a park in Half Moon Bay, California.
What is the water temperature at Half Moon Bay Beach?
As of August 21, 2026, the water temperature at Half Moon Bay Beach in Half Moon Bay, California is 69°F (21°C), measured by NOAA buoy AAMC1, 21.5 miles away.
Can you swim at Half Moon Bay Beach?
There is no fixed answer for Half Moon Bay Beach: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Half Moon Bay Beach in Half Moon Bay, California. Check current water conditions before you go, and follow posted signs and local guidance.
How is Half Moon Bay Beach rated?
Half Moon Bay Beach in Half Moon Bay, California has an average visitor rating of 4.5 out of 5, based on 64 reviews.
What amenities does Half Moon Bay Beach have?
Visitor-listed amenities at Half Moon Bay Beach include camping-nearby.

Visitor Reviews

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Been here? A quick note helps the next visitor plan their day. Handy things to mention:

Water temperatureCrowds & parkingBest time to goSafety & access

Best Times to Visit

🧥
Right Now
Cool weather - dress warmly
General Tips:
  • Weekday mornings (8–10 AM) are typically less crowded
  • Check the forecast 2–3 days ahead for best planning
  • Avoid holiday weekends for a quieter experience
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

Coastal Trail, Half Moon Bay, CA 94019

Half Moon Bay, California 94019

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Accessibility

Wheelchair accessible parking lot

Amenities

Camping nearby🚻 Public restroom

Family & Children

👶 Good for kids👶 Kid-friendly hikes