Heysham 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 05:00 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 Europe/London local. Folk tradition, not a scientific forecast.

Last spring tide on Tue 19 May (range 7.9m / 26.0ft). Next neap on Sat 23 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.

Heysham sits on the northern shore of Morecambe Bay, 5 kilometres west of Lancaster and directly adjacent to Morecambe, the two settlements sharing a seafront but maintaining distinct identities. The distinguishing features of Heysham are three: the headland at the south end of the village with the 8th-century St Patrick's Chapel ruins and the Viking-age rock graves cut directly into the sandstone; the harbour that serves as the departure point for Isle of Man and Belfast ferries; and the twin cooling towers and reactor buildings of Heysham Nuclear Power Station on the south side of the headland — two AGR reactors, Heysham 1 and Heysham 2, that between them generate enough electricity to power approximately 1.5 million homes and are visible from throughout the bay. The juxtaposition is striking and entirely Lancastrian. The St Patrick's Chapel headland is the most historically significant coastal site in northwest England. The chapel itself dates from the late 7th or early 8th century — one of the oldest surviving ecclesiastical structures in northern England — and stands in roofless ruin on the cliff edge with unobstructed views across Morecambe Bay to the Lake District fells. Below the chapel, cut directly into the flat sandstone of the headland, are six body-shaped graves with socket holes for wooden headmarkers. These are Viking-age, probably 10th century, and are unique in Britain — the combination of form and geology found nowhere else. The cockle and mussel beds of Morecambe Bay are accessible at low water on the mudflats south of the headland. The bay's spring tidal range is extreme — 9 to 10 metres — one of the largest in Britain and second in England only to the Severn. At low water the bay empties to reveal kilometres of rippled sand and mudflat; at high water the same terrain is entirely submerged. The rate of tidal advance across the flat bay floor is the critical safety issue: in certain conditions and over certain routes, the flood tide crosses the bay faster than a person can walk or run. The licensed Queen's Guide to the Sands, a centuries-old appointment, guides authorised cross-sands walks from Arnside to Kents Bank — the only safe way to attempt the crossing. Independent cross-sands walking is actively dangerous and regularly requires Coastguard rescue. For anglers, Heysham and the Morecambe Bay foreshore at low water produce bass, flounder, and the cockle beds that have been commercially harvested here for centuries. The 2004 Morecambe Bay disaster — when 23 cockle-pickers drowned after being cut off by the fast-rising tide — occurred 10 kilometres to the north at Warton Sands and serves as a permanent reminder of the bay's hazard. Heysham Harbour is a working commercial port with daily sailings to Douglas on the Isle of Man (3.5 hours) and seasonal services to Belfast. The harbour wall is a fishing platform at all tide stages; the harbour basin holds water behind the lock gates and is accessible to small boats independent of tide. Old Heysham village centre, a street of stone cottages running up to the headland, is largely preserved and contrasts sharply with the industrial port below. 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. The UK Environment Agency maintains tide gauge monitoring on Morecambe Bay, and the RNLI operates from Morecambe station.