Tide Atins, The shape of the water
ForecastThe day's range
2.8 m
Difference between high and low
Next low
12:000.3 m
Calibrated at Luís Correia, 125 km away. No comparable Navy tide table nearby. With strong tides, low tide likely comes about 31 min later than the curve shows (25 on average; 1965 data from the shifting river mouth; maybe less on the open beach). Lagoons, river mouths and bays may not follow the open-sea curve.
With strong tides, high tide covers more of the beach and low tide uncovers more. Currents get stronger: take care at river mouths and during crossings.
Safety note
Do not swim at the mouth of the Rio Preguiças — strong current.
Tide tip · ATINS
At low tide, natural pools and a sandbank appear.
Tide-dependent: Boat Crossing Atins ➝ Caburé →
How we calculate the tide
Heights in meters above the model's reference level. “Mean level” is the average of this day's extreme heights; it does not indicate depth.
We calculate the tide with the FES2022 model, calibrated for each place to a reference station from the FEMAR catalog. Where we can, we compare the curve with the Brazilian Navy's tide tables. On rivers and inland, the curve shows the coastal tide, not the water level there.
Strong, moderate or weak: the word compares the day's range with this place's usual range, not with other places.