Porto Seguro 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/Sao Paulo local. Folk tradition, not a scientific forecast.

Next spring tide on Sat 16 May (range 2.1m). 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.

Porto Seguro is on the south Bahia coast, at the site where Pedro Álvares Cabral's Portuguese fleet made first landfall in Brazil in 1500. The town has a UNESCO-listed historic centre (the Cidade Alta, upper city) on a cliff above the sea, and a long beach stretch to the north and south known for its natural swimming pools (piscinas naturais) formed by offshore reef systems. Tidal pattern is semidiurnal with a mean spring range of about 1.0 metre — slightly larger than the Rio coast due to the different coastal geometry. The natural pools are what define Porto Seguro's beach character. At low tide, the offshore reef barriers create protected shallow lagoons — sometimes only 30 to 50 cm deep, warm (28 to 30°C), and clear — that are accessible to swimmers without navigating through surf. The pools at Praia de Mutá (south, Arraial d'Ajuda side) and the Recife de Fora marine reserve (20 km offshore, accessible by day boat from Porto Seguro harbour) are the highlights. The Recife de Fora is the largest protected coral reef in the extreme south Atlantic. Arraial d'Ajuda, across the Rio Buranhém from Porto Seguro (reached by ferry), is the hippie-chic counterpart town — arts scene, colourful streets, and lower prices than the main Porto Seguro beach zone. Trancoso, 22 km south of Arraial, is the ultimate luxury low-key Bahian beach experience: the Quadrado (the historic green square with colonial church and restaurants) and the beaches accessible only by 4WD track or on foot through Atlantic forest. Humpback whales (baleia jubarte) pass along the south Bahia coast from July through November, when females give birth in the warm, shallow coastal waters. Whale watching boats operate from Porto Seguro and Arraial d'Ajuda; the sightings rate in September and October (peak season) is very high. The whales come very close to shore in calm conditions. Predictions on this page come from Open-Meteo Marine, a gridded global ocean model. Accuracy is typically within plus or minus 45 minutes on timing and 0.2 to 0.3 metres on height — model-derived, not from a local gauge. For Brazilian tide data, consult the DHN at mar.mil.br/dhn.