Cabo San Lucas Marine ForecastLand's End, Baja California Sur

As of Aug 27, 2026, the SeaLegs AI verdict for Cabo San Lucas is CAUTION. A generally favorable Thursday with light winds all day (peaking near 12 knots SSW by late evening) and a steady SSW swell running 3.5-4.3 feet at 9-10 second periods - comfortable and well-organized through the morning and afternoon. However, as winds swing around from calm/variable in the morning to SSE and then SSW by evening, a wind-driven chop develops that crosses the underlying SSW swell, creating roughly 12 hours of steep wind-wave chop and about 13 hours where the two wave trains produce a confused, awkward sea state with no single comfortable heading. Model confidence is high (90%) for wind and wave height, though wave period forecasts diverge later in the day, so plan for choppier, less predictable motion by evening even though wind speeds stay moderate.

The board above shows today's conditions at the harbour mouth at Land's End — wind, swell, and a plain GO, CAUTION, or NO-GO rating — rebuilt every morning from the latest marine model data. Because the Pacific and the Sea of Cortez meet at the cape, treat it as the departure read rather than a single number for every direction you might run.

Land's End is the dividing point between open Pacific water and the Sea of Cortez. The Pacific side takes the ocean swell and is where the offshore banks sit; the Cortez side is often calmer in summer and autumn but is the rougher one in winter, when northerlies funnel down the gulf. It is common for one side to be fishable and the other not on the same morning.

Golden Gate Bank lies about 17 nautical miles west-northwest of Land's End and San Jaime Bank about 20 nautical miles west-southwest — both open-Pacific runs with no shelter along the way. The Gordo Banks sit the other way, up the Sea of Cortez side.

It depends on the fish. Blue and black marlin peak from roughly July through October, which is why the big-money tournaments run in October — the overlap weeks when marlin, yellowfin tuna, dorado and wahoo are all in the water together. Striped marlin are the area's most abundant billfish but peak in the cooler months, roughly December through June.

The forecast on this page is rebuilt every morning from the latest marine model data, and the SpotCast card refreshes live in your browser. The date stamp above the outlook shows exactly when it was last generated.

GO means conditions are favorable for most recreational boats. CAUTION means marginal — manageable for experienced crews in capable vessels, but check the wind, swell period, and timing closely. NO-GO means conditions are hazardous for small craft and the trip is best postponed.

Yes. In the free SeaLegs AI app you can drop a pin on any spot on Earth — the Golden Gate, San Jaime, the Gordo Banks, or your own numbers — and get the same AI-rated marine forecast, plus DeepCast AI fishing reports and trip planning.

As of Aug 27, 2026, the satellite-derived sea surface temperature at Cabo San Lucas is about 87.8°F, with chlorophyll around 0.31 mg/m³ (green shelf water). The SST and chlorophyll charts on this page are rebuilt every morning from the SeaLegs AI DeepCast satellite pipeline.