Pacific Mackerel Runs Off Point Loma: Timing Your Freediving Season
Point Loma’s rocky reefs and kelp forests attract consistent Pacific mackerel runs—and they’re predictable enough to build your entire freediving calendar around them. If you’re serious about freediving for mackerel off San Diego, understanding when and where these fish move through the water column is the difference between a productive session and wasted bottom time.
The Mackerel Migration Pattern
Pacific mackerel (Scomber japonicus) don’t just show up randomly. They follow established migration corridors driven by water temperature and baitfish availability. Off Point Loma, mackerel typically move in substantial schools during late spring through early fall, with the most aggressive feeding windows in summer months.
The fish are temperature-sensitive—they prefer water between 58°F and 68°F. San Diego’s offshore waters hit this sweet spot around May and stay in the zone through September. April and October can be solid, but you’re working thinner margins on water temp and fish density.
Peak Season: June Through August
Summer is your window. June marks the arrival of sustained mackerel presence off Point Loma’s deeper reefs and the kelp beds near Cabrillo Monument. July and August are the absolute peak. Schools are thick, feeding windows are longer, and visibility typically improves as warmer surface water settles in (though upwelling can still create murky conditions unpredictably).
During these months, early morning dives—first light until mid-morning—consistently produce the most aggressive mackerel. The fish feed actively in low-light conditions and settle into deeper water as the sun climbs. If you’re diving Point Loma between June and August, prioritize dawn sessions.
Secondary Runs: May and September
May and September bracket your peak season and shouldn’t be overlooked. May is often excellent as the first large schools arrive and haven’t yet adapted to heavy freediving pressure. Water temps are still cool enough (54–58°F) to keep fish metabolically active and aggressive.
September can be even better than May. Summer’s heat has pushed water temps into the upper 60s, but the September swell cycle often brings nutrient-rich upwelling that stacks baitfish and triggers feeding binges. Late September mackerel runs off Point Loma can rival July in intensity if conditions align.
Spring and Fall: Marginal but Viable
April and October are transitional months. Mackerel are present but scattered. Water temps are cool (50–56°F in April, 56–62°F in October), which can actually trigger aggressive feeding, but schools are less predictable. Visibility can be poor during spring upwelling events, especially around the Loma’s western face.
If you’re freediving Point Loma in April or October, focus on deeper reef structure where mackerel congregate during cooler months. The fish tend to hold tighter to rocky features rather than dispersing through open water.
Winter: Plan Around Swell
November through February is lean. Mackerel don’t disappear entirely, but they’re scattered and deep. Winter swell regularly closes Point Loma for extended periods, making consistent access nearly impossible. If winter conditions are glassy and you can get in the water, target the calmer leeward side near Sunset Cliffs or push deeper to the 60–80-foot reefs where some mackerel hold year-round. Don’t expect summer-style abundance.
Reading Daily Conditions
Timing the season is half the battle; reading daily conditions is the other half.
Water temperature: Check current temps before each dive. Mackerel activity spikes when temps hit 62–66°F. Warmer water (68°F+) can actually slow feeding as fish become lethargic.
Visibility: Mackerel don’t require gin-clear water, but 25+ feet is your sweet spot. Point Loma’s kelp helps—the forest actually concentrates baitfish and mackerel. If visibility drops below 15 feet, expect slower action.
Swell direction: Western swells push clean water against Point Loma’s reefs and can trigger aggressive feeding. Southern swells often bring murk and scatter schools. Eastern swells are generally best for access and visibility.
Tidal flow: Mackerel feed actively during moving water. Fish early in the tidal window—first hour of flood or last hour of ebb—when current creates baitfish vulnerability.
Practical Takeaway
Plan your Point Loma freediving around June–August for guaranteed action. Extend your season into May and September if conditions permit. Skip winter unless you’re opportunistic. Use Element’s conditions data to track water temps and swell forecasts, then dive early and deep during your chosen window.
The mackerel are predictable. Your job is showing up when they’re actively feeding and diving the right structure. Point Loma’s reefs reward consistency and attention to detail.
Download the Element app to monitor water temperature, swell direction, and visibility forecasts for Point Loma and plan your freediving sessions around optimal mackerel conditions.