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Home/Locations/California/San Diego/San Onofre State Beach (Old Man's)

San Onofre State Beach (Old Man's)

San Clemente · San Diego County · California

Today’s conditions · not a forecast

Visibility Breakdown

Updated through the day · times PT
Last reading 7:01 AM

Visibility by position

Break Zone
12ft
reviewed reading
Post Break
headline zone
21ft
reviewed reading
Open Water
31ft
reviewed reading

Solid = diver report · outlined = our reading

Cross-section from the sand out to open water, split into 3 visibility zones: Break Zone (0-50 ft from shore), Post Break (50-200 ft from shore), Open Water (200+ ft from shore).
Shore
Break Zone
0-50 ft from shore
Post Break
50-200 ft from shore
Open Water
200+ ft from shore

Break Zone: The range of water where the waves break and sediment is stirred up.

Post Break: The range past where any waves are forming, where the water starts to have a significant increase in visibility. There might be some sediment here, but swell energy is diffused and the water is calmer.

Open Water: This zone is far out enough from the shore that the water is at its clearest. It’s deep enough that sediment is not disturbed by the wave energy at the surface. Haze can sit near the surface, so the water is usually clearer the deeper you go.

Through the day

Today's visibility readings at this spot, shown at the hour each one was taken.

Every bar is a reading for the Post Break zone.

21 ✓
7a
9a
soon
10a
soon
11a
soon
1p
soon
3p
soon
5p
soon

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Report visibility
Entry type
Shore
Parking
Lot on the sand · $15
Spearfishing
Legal
Stingray risk
High
Difficulty
Beginner
Popular activities
Surf · Swim · Fish
Today's forecast

Why it reads 19–23 ft

Updated 7:01 AM PT today · October 27, 2026
Moderate phytoplankton
Neutral
0.85 mg/m³
Moderate impact
Moderate swell
Neutral
2.0 ft
Minor swell
Short-period chop
Hurts vis
7.0 s
Minor chop
Light wind
Neutral
6 kt
Minor wind
Live water reading
Helps vis
live reading today
Minor impact
Live reading cap (carried)
Hurts vis
carried forward, 14 h ago
Minor impact

Medium confidence

Ocean Oracle

7-Day Forecast

Days 2 to 7 are Pro

Today is the live headline above. Tomorrow onward is the algorithm's forecast from predicted swell, wind, and rain, updated each morning and at 6 PM Pacific.

Today · Tue
Oct 27
19–23ft
Perfect
Open Water 31 ft
Swell 2 ft at 12 s, wind 1 kt at 10 AM. No rain forecast.
Wed
Oct 28
14
Good
Open Water 21 ft
Thu
Oct 29
9
Fair
Open Water 14 ft
Fri
Oct 30
16
Excellent
Open Water 24 ft
Sat
Oct 31
19
Excellent
Open Water 27 ft
Sun
Nov 1
11
Good
Open Water 17 ft
Mon
Nov 2
13
Good
Open Water 20 ft
Unlock days 2 to 7
7-day forecasts come with Ocean Oracle Pro · $5/mo
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Getting there

Map and parking

33.3713° N · 117.5631° W
Map of San Onofre State Beach and the Old Man's surf area
Address
Old Hwy 101 at Basilone Rd
San Clemente, CA 92672
Parking
Lot on the sand · $15

One dirt road drops from the bluff to a lot that sits directly on the sand. Day use is $15, or $20 on peak days, and an annual California State Parks pass covers it. The road washed out in February 2024 and reopened that April, and continuing erosion has narrowed it enough that some pull-in spaces became parallel parking.

See the offshore water on Pelagiscape →Clarity, temperature breaks and kelp off this beach.
Field notes

About San Onofre State Beach (Old Man's)

Breaks
The Point, Old Man's and Dogpatch
Waves
Long and slow, good for beginners
Day use
$15, or $20 on peak days
Parking
A lot on the sand at the bottom of a dirt road
Protection
No MPA, standard state rules

San Onofre State Beach runs along a low bluff 3 miles south of San Clemente, on the ocean side of Old Highway 101 and just north of the shut-down San Onofre Nuclear Generating Station. The day-use surfing area divides into 3 named breaks, The Point at the north end, Old Man's in the middle, and Dogpatch closest to the plant. Old Man's is the name most people use for the whole beach. The waves are long and slow, which is why the beach suits beginners and longboarders and why it holds a place in the early history of West Coast surfing.

From the Nautilids who hunt it

Spot strategies

Ocean Oracle Pro
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How other Nautilids actually hunt San Onofre State Beach (Old Man's): the biome they worked, the gear, the tide and time of day, and what they were after.
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Pelagiscape Offshore Map

One full-screen map of the water off all of California: satellite water clarity and temperature, temperature breaks, seafloor shading, depth lines, surface kelp, Marine Protected Areas, currents, wind, and swell. Save your spots as pins and get an email when a temperature break comes near them.

7-Day Forecasts

Visibility predictions for the entire week ahead at any beach. Plan dives, schedule charters, and book trips without guessing.

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Dive Log

Every entry freezes that day's report: visibility, tide, swell, wind. Log catches, stamp Personal Bests, level up your guns, and light up your species life list.

Front-Page Oracle

The Coastal Bulletin greets members with the clearest water on the coast today and their own watchlist, before a single click.

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