FISHTIDE FIELD GUIDE
Tide height is not current speed
Water level and horizontal flow are different measurements. Understanding the distinction helps you interpret your line, tackle and timing.
Illustrative image, not an observation of a particular location or sea state.
What a tide table describes
A tide table describes changing water level relative to a specified vertical reference. High tide is a local maximum and low tide a local minimum. A height in metres does not state horizontal water speed. Before comparing two sources, check their station, vertical datum and time zone. Differences in those details can make nearby measurements appear inconsistent.
What current describes
Current is the movement of water and its direction. An angler may notice line angle, moving bait and difficulty holding bottom. Tidal currents relate to the tidal cycle, but channels, bays and depth make the relationship local. Do not assume slack water occurs exactly at every high or low tide. A rate of water-level change is not a measurement of horizontal current at the fishing depth.
Nearby places can behave differently
A narrow passage, broad bay and open beach exchange water differently. A coastal tide station cannot automatically describe a channel behind a barrier. A distant forecast source is a coverage limitation. Reliable local offsets need supporting observations, rather than a fixed adjustment applied to every city. A model can assist planning without replacing local measurements.
Use the distinction with your tackle
If the line bows and bait will not hold, examine casting direction, water movement and bait size before simply adding lead. Rod rating, line and bottom type constrain the weight you can use. On rock, extra weight may improve holding but increase snagging. Test from safe ground and compare how the tackle behaves over time. A change in bites does not establish tide as the only cause.
A traditional lunar label is not a global tide table
Local fishing traditions can be useful context, but are not direct measurements of current or replacements for a local tide curve. The same lunar phase can accompany different coastal responses. Treat sun and moon timings as part of a larger picture including season, bait, target species and exposure. No time guarantees a catch, and missing tide data does not mean there is no tide.