Keelung tide times

Mean tidal range at Keelung is approximately 1.5 to 2.0 m relative to Chart Datum — mixed semidiurnal, with two highs and two lows per day of unequal height. Spring tides at new and full moons push toward the higher end of the range; neap tides can halve the height difference between consecutive high waters. The northwest Pacific mixed-semidiurnal signature means the tidal curve at Keelung looks markedly different from a simple European semidiurnal, with a pronounced diurnal inequality.

At low water, particularly on a spring-tide day (within three days of new or full moon). The intertidal basalt platform — eroded into the distinctive rectangular 'tofu rock' blocks — is fully accessible only when the tide is out. On a neap-tide day the water may not drop far enough to fully expose the lower platform sections. Check the CWA tide table for the day before visiting Heping Island Park, and arrive about 30 minutes after predicted low water to allow the platform to drain.

The Keelung River drains through the city to the inner harbour and its water level is subject to tidal backwater effects on the flood — particularly on spring high tides, when the harbour water level rises to within the river channel's drainage gradient. When heavy typhoon-season rain coincides with a spring high tide, the combination elevates flood risk in low-lying areas along the river. The city has floodgates and drainage infrastructure to manage this, but the CWA issues water-level warnings for the Keelung River during typhoon events.

Yes. Keelung is 30 minutes from Taipei Main Station by Taiwan Railways Authority (TRA) train or by freeway. The Miaokou Night Market is one of the most concentrated and authentic hawker food experiences in northern Taiwan; the Heping Island Park coastal geology is genuinely distinctive; and the harbour itself is worth a walk for the contrast between the working container port and the wooded hills above. Low-water morning visits to Heping Island followed by an evening session at Miaokou makes a full day.

No prediction is guaranteed. Data on this page comes from Open-Meteo Marine modelling (typical accuracy ±45 minutes on timing, ±0.2–0.3 m on height) and is intended as planning guidance only. The Central Weather Administration (CWA) is the authoritative source for tidal predictions in Taiwan. Always verify with CWA before any activity where tidal state affects safety — particularly on the exposed Heping Island coastal platform, where wave wash over intertidal rocks can occur unexpectedly even at lower tide levels in a swell. This site does not accept responsibility for decisions made based on these predictions.