Puerto Madryn tide times

Predictions: Open-Meteo Marine (MeteoFrance SMOC, 0.08° grid) — heights relative to MSL (not chart datum / LAT). Model-derived.

Model-derived from a global ocean grid. Useful indication; expect about ±45 minutes on average vs. a local harmonic gauge, individual stations vary widely. See /methodology for per-region detail. Not for navigation.

Conditions as of 01:00 local time. Refreshes daily.

Predictions: Open-Meteo Marine (MeteoFrance SMOC, 0.08° grid) — heights relative to MSL (not chart datum / LAT). Model-derived. · Not for navigation.

The angler tradition for major/minor fishing windows: major ≈3-hour windows around moon transit and opposition; minor ≈2-hour windows around moonrise and moonset. Times are America/Argentina/Buenos Aires local. Folk tradition, not a scientific forecast.

Next spring tide on Tue 19 May (range 5.1m). Last neap on Fri 15 May. Next neap on Thu 21 May.

Spring tides cluster around new and full moons (biggest swings). Neap tides land on quarter moons (smallest swings). See the spring tide and neap tide glossary entries for the why.

Puerto Madryn sits inside the Golfo Nuevo on the Chubut coast of Patagonia, and the tide here is a major physical fact of daily life. Mean tidal range at Chart Datum is approximately 6.0 m — one of the largest on the South Atlantic coast, and the direct result of the Golfo Nuevo's semicircular geometry amplifying the open-ocean tidal signal before it reaches the harbour. Spring tides at new and full moons push the range higher; neap tides compress it toward 4 m. The practical effect is pronounced: at low water the harbour floor is largely exposed in the intertidal zone, and the sea retreats hundreds of metres on the gently sloping Doradillo beach north of the city. The tidal regime is semidiurnal — two high waters and two low waters per day, roughly 6.2 hours between high and low, with the sea rising and falling approximately 1 m per hour on average through the mid-tide range. Anyone launching a boat, kayaking, or walking the intertidal needs to be clear on whether the tide is ebbing or flooding and how much time remains. Playa Doradillo, 17 km north of the city, is where southern right whales (Eubalaena australis) feed in the shallows during the June-to-December calving and mating season in the gulf. The whales' approach to the beach correlates with the incoming tide, when rising water pushes krill concentrations inshore toward the shallows. Observing from the clifftop above the beach at high water approaching — preferably on a spring tide — gives the best chances of close-range feeding behaviour. Puerto Madryn itself is the service base for the Valdés Peninsula whale-watching boats and the entry point for most visitors to the UNESCO World Heritage area. The Servicio de Hidrografía Naval (SHN) publishes official tidal predictions for Argentine ports; Open-Meteo Marine supplements with gridded model data accurate to approximately ±45 minutes on timing and ±0.2–0.3 m on height. Always cross-check SHN before any activity where the 6 m range makes tidal state safety-critical.