Mar del Plata, Buenos Aires tide times

The hero block shows the next high tide at the Mar del Plata harbour gauge in local Argentine time (ART, UTC-3 year-round, no DST). The 7-day table covers all daily highs and lows. The Quequén harbour 100 kilometres south reads about 30 minutes behind the Mar del Plata gauge on the same flood.

Mean range is about 0.9 metres at the harbour gauge — a moderate semidiurnal swing. Spring tides push close to 1.4 metres and neaps drop near 0.5. Two highs and two lows of comparable size about twelve and a half hours apart. The pattern is cleaner here than further north at the Río de la Plata estuary, where the southerly sudestada wind events override the astronomical signal completely.

Open-Meteo Marine, a gridded global ocean model. Useful for planning the Bristol and Playa Grande beach windows, the Cabo Corrientes surf sessions, and the harbour-fleet sportfishing departures. For authoritative Argentine tide data, the Servicio de Hidrografía Naval (SHN) publishes the official tide tables and operates the Mar del Plata reference gauge.

The sudestada is a sustained south-east wind event that develops when a slow coastal low draws air across the long South Atlantic fetch toward the Argentine coast. The wind piles water against the shore and can lift apparent water levels a metre or more above the predicted astronomical tide, particularly when the surge coincides with high tide on a spring cycle. The Río de la Plata at Buenos Aires sees the worst impact because the funnel geometry concentrates the surge; Mar del Plata gets a smaller version of the same effect plus heavy onshore swell on the open coast.

No. For piloting in or out of the Mar del Plata harbour, transiting the South Atlantic shelf, or working the Quequén approach use the Servicio de Hidrografía Naval authoritative tide tables, the Prefectura Naval Argentina notices to mariners, and the harbour-master pilotage guidance. Sudestada and pampero events can override the harmonic signal entirely and demand real-time forecasts.