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Photo: Half Moon Bay State Beach 2 2018-05-06 by FASTILY (CC BY-SA 4.0) License

Half Moon Bay State Beach

State park · Half Moon Bay, California

Cool water — ease in carefully

Use caution

Cool water — ease in carefully: water temperature is 65°F, cool enough to cause cold-water shock on a sudden entry.

  • Water temp 65°F (18°C)

Live data from NOAA buoy AAMC1 (21.8 mi away), as of Oct 20, 7:54 AM UTC.

Why, sources & official advisories
  • Water temperature is 65°F, cool enough to cause cold-water shock on a sudden entry. — NOAA buoy AAMC1, as of Oct 20, 7:54 AM UTC
  • No official beach advisory posted (California Water Boards — FHAB Reports checked).

Official advisories

Checked against California Water Boards — FHAB Reports — no advisory posted.

Get an email when it’s warm enough

It’s 65°F at Half Moon Bay State Beach now. We check the water daily and email you once when it reaches your temperature.

Cool todaycamping-nearbyPicnic tablesPublic restroomWheelchair accessible entrance
Editor's Notes
Half Moon Bay State Beach, a state park in Half Moon Bay, California. Restrooms and picnic tables on site; visitors come for hiking and picnicking. The site is wheelchair-accessible and kid-friendly.

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Weather at Half Moon Bay State Beach

55°F, Overcast · H 66° / L 54° · 18% chance of rain
H: 66° L: 54°
Overcast
Overcast
55°
|
Feels like 53°
Precipitation
18%
Humidity
83%
Wind
4 mph
UV Index
0
12 AM
Overcast
55°
3 AM
Overcast
55°
6 AM
Cloudy
54°
9 AM
Overcast
57°
12 PM
Overcast
64°
3 PM
Overcast
66°
6 PM
Overcast
61°
9 PM
Overcast
57°

Frequently asked questions

Where is Half Moon Bay State Beach?
Half Moon Bay State Beach is a state park in Half Moon Bay, California.
What is the water temperature at Half Moon Bay State Beach?
As of October 20, 2026, the water temperature at Half Moon Bay State Beach in Half Moon Bay, California is 65°F (18°C), measured by NOAA buoy AAMC1, 21.8 miles away.
Can you swim at Half Moon Bay State Beach?
Cool water — ease in carefully: water temperature is 65°F, cool enough to cause cold-water shock on a sudden entry. Checked October 20, 2026.
How is Half Moon Bay State Beach rated?
Half Moon Bay State Beach in Half Moon Bay, California has an average visitor rating of 4.7 out of 5, based on 131 reviews.
What amenities does Half Moon Bay State Beach have?
Visitor-listed amenities at Half Moon Bay State Beach include camping-nearby.

Location & Contact

2 Venice Blvd, Half Moon Bay, CA 94019

Half Moon Bay, California 94019

💡 Best times & visiting 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

Features & amenities

Highlights

⭐ Picnics

Accessibility

♿ Wheelchair accessible entrance♿ Wheelchair accessible parking lot

Amenities

⛺ Camping nearby🧺 Picnic tables🚻 Public restroom

Family & Children

👶 Good for kids👶 Kid-friendly hikes
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