Tide Table Arecibo — 2026

📘 About Arecibo Tide Forecast

Arecibo is located at 18.48° N, 66.70° W on the coast of Puerto Rico, in the northern hemisphere. Its tidal pattern is mixed semi-diurnal (unequal tidal heights across the day), with a mean tidal range of 0.5m and spring tides reaching up to 0.6m. Tides have a moderate range of 0.5 to 1.5 metres, creating gentle currents that influence shore fishing. Significant diurnal inequality in mixed tides generates stronger currents when falling from the higher high water to the lower low water. Coastal water salinity varies with rainy seasons, creating gradients that influence the distribution of marine species. Review the annual 2026 tide guide for Arecibo, constructed with continuous high and low water forecasts measured in metres. In October, Arecibo is in its autumn season, a key period for water sports, fishing, diving, and coastal navigation. All tide predictions are computed from harmonic constants validated for this coastal station, with accuracy within ±15 minutes for most conditions.