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Photo: Lasthenia minor, San Gregorio State Beach, San Mateo, California, United States imported from iNaturalist photo 296159 by (c) Ken-ichi Ueda, some rights reserved (CC BY) (CC BY 4.0) License

San Gregorio State Beach

State park · San Gregorio, California

Cool todayPicnic tablesPublic restroomWheelchair accessible parking lot

Sheltered by soaring cliffs, this coastal park has a wide sandy beach & a driftwood-strewn estuary.

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Current water conditions

Water temp
63°F
17°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 46012 (26.4 mi away), as of Aug 20, 10:00 PM 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 San Gregorio State Beach

H: 63° L: 56°
Overcast
Overcast
62°
|
Feels like 55°
Precipitation
42%
Humidity
89%
Wind
17 mph
UV Index
4.2
Water Conditions:
🥶Too cold for most swimmers🏄Good for surfing/sailing
12 AM
Fog
57°
3 AM
Mist
57°
6 AM
Fog
56°
9 AM
Overcast
59°
12 PM
Overcast
62°
3 PM
Overcast
63°
6 PM
Overcast
59°
9 PM
Overcast
57°

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Frequently asked questions

Where is San Gregorio State Beach?
San Gregorio State Beach is a state park in San Gregorio, California.
What is the water temperature at San Gregorio State Beach?
As of August 20, 2026, the water temperature at San Gregorio State Beach in San Gregorio, California is 63°F (17°C), measured by NOAA buoy 46012, 26.4 miles away.
Can you swim at San Gregorio State Beach?
There is no fixed answer for San Gregorio State Beach: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at San Gregorio State Beach in San Gregorio, California. Check current water conditions before you go, and follow posted signs and local guidance.
How is San Gregorio State Beach rated?
San Gregorio State Beach in San Gregorio, California has an average visitor rating of 4.6 out of 5, based on 2129 reviews.

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

20063 Cabrillo Hwy S, San Gregorio, CA 94074

San Gregorio, California 94074

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Highlights

Picnics

Accessibility

Wheelchair accessible parking lot

Amenities

🧺 Picnic tables🚻 Public restroom

Family & Children

👶 Good for kids👶 Kid-friendly hikes