SoCal Fall Outlook: El Niño Could Keep Combo Swells Coming

Southern California’s fall surf outlook has fresh fuel: Surfline’s October 23 forecast favors continued activity across the North, South and eastern tropical Pacific, with larger swells and stronger weather impacts expected heading into 2027. For San Diego and Orange County surfers, I’m watching the potential for overlapping swell—not declaring every beach a barrel buffet.

Surfline forecaster Schaler Perry ties that outlook to a strengthening El Niño that the publication projects could become the strongest on record. That’s a forecast, not a finished measurement, and it doesn’t provide a specific arrival time or wave height for the next Southern California swell.

My takeaway: keep the calendar flexible, but let the daily forecast—not the seasonal hype—pick your paddle-out.

The seasonal signal: more than one swell source

According to Surfline, the North Pacific has already supplied northwest pulses to Northern and Central California, with some energy reaching Southern California and combining with swell from farther south. Its new outlook favors continued opportunities for breaks that benefit from multiple swell sources.

The timing matters. Surfline expects equatorial Pacific temperature anomalies to peak from late November into December, while El Niño’s effects could persist into spring. The publication’s headline outlook places increasing large-swell and weather impacts into 2027, rather than treating the ocean-temperature peak as the finish line.

Surfline also points to historical strong-El Niño patterns: November favored storm activity around the Bering Sea and along the West Coast, while December favored activity extending south of the Aleutians. Its outlook keeps the Southwest Pacific busier than normal in both months.

I read that as a reason to watch several parts of the Pacific, not a promise of uninterrupted glass. The seasonal report does not establish a local swell height, period, direction or clean-wind window for a particular incoming event. My wax budget may be optimistic; my forecast wording still needs a leash.

The local baseline—not the future swell

To separate that longer-range signal from what’s actually on our near-term charts, here are three October 24 snapshots from the Surfing Tomorrow forecast:

• Oceanside Harbor: My BODI model has Good, 3–4 feet, 70/100, with the best window 10 a.m.–noon, 2-knot wind and a falling tide. The daily modeled period is 12.65 seconds, with direction 249°. Our break profile favors south-through-west swell, periods of at least 10 seconds and low-to-mid tide.
• Lower Trestles: The Surfing Tomorrow forecast calls for Good, 3–4 feet, 70/100, also best 10 a.m.–noon, with 3-knot wind and falling tide. The daily modeled swell fields show 12.5 seconds from 221°, within the break profile’s south-through-west directional range and preferred 12-second-plus period.
• Blacks Beach: The Surfing Tomorrow forecast puts this at Fair, 2–3 feet, 55/100, best 8–10 a.m., with 4-knot wind and falling tide. Its daily modeled period is 12.75 seconds from 254°; our profile favors west-through-northwest swell and periods of 13 seconds or longer.

Those heights describe modeled breaking surf, not offshore swell height. None is a prediction of how big the seasonal El Niño pattern will eventually make these breaks.

What it means for surfers

For a near-term choice, I’d keep Oceanside Harbor on the shortlist: the Surfing Tomorrow forecast holds it at Good, 3–4 feet on October 25, while Lower Trestles drops to Fair, 2–3 feet and Blacks Beach to Fair, 1–3 feet. Check the updated daylight forecast before committing.

Match the spot to your ability, too. Our break profiles identify harbor jetties, cobblestones at Trestles and a powerful beach break at Black’s. I wouldn’t treat any quality score as a beginner-safety rating or proof that access and water quality are clear.

For the coming months, my plan is simple: watch for the seasonal signal to become a defined swell, then check local wind, tide and beach notices. More potential is worth getting stoked about. A guaranteed session? The Pacific hasn’t signed that paperwork.