Woods Hole, MA tide times

Woods Hole occupies the narrow passage between Buzzards Bay and Vineyard Sound on the southwest corner of Cape Cod, and that geography makes it one of the most tidally interesting places on the US Atlantic coast. The channel through the passage — less than 300 metres wide at the Great Harbor narrows — connects two bodies of water that experience their tidal highs at different times. Vineyard Sound reaches high water roughly two hours before Buzzards Bay, and the sea-level difference between the two sides of the passage drives a tidal current through the channel that reaches 4 to 5 knots on large spring tides. At peak flow, the surface of the channel is visibly turbulent, with tide rips, eddies, and overfall waves on the downstream side of the rocks and shoals that line the passage.

The Woods Hole Oceanographic Institution (WHOI) occupies the waterfront on the south side of Great Harbor. Founded in 1930, WHOI is the world's largest private oceanographic research institution, and its presence shapes the town entirely — the docks, research vessels, and institutional buildings are integral to the harbour rather than separate from it. The WHOI Ocean Science Exhibit Center is open to the public and provides excellent context for understanding why scientists study tidal currents, deep-ocean circulation, and sea-level change at locations like this one.

The Steamship Authority ferry to Martha's Vineyard departs from the dock at the foot of Water Street several times daily. The ferry schedule is not directly tide-constrained (the dock has adequate depth at all states), but timing the 45-minute crossing relative to the current window affects fuel use and crossing time — outbound ferries on a fair ebb make the crossing faster than fighting a flood. Passengers standing on the ferry deck as it transits the Hole itself can feel the current push on the hull.

The tidal flow through the Hole is famous among sea kayakers. Experienced coastal paddlers plan transits through the main channel on or near slack water — typically within 30 minutes either side of the predicted high or low at Vineyard Sound. The slack window is short (often less than 45 minutes) before the current reverses and rebuilds. Paddling through against the peak flood or ebb is not practical for most kayakers; waiting for slack is standard practice.

Shore fishing from the bridge and the rocky points flanking the Hole produces striped bass, bluefish, and tautog. The current concentrates baitfish and the predators follow — the transition from slack to running current is the productive window, when bass move into position on the down-current edges of the rocks. The approach to the Hole from the Vineyard Sound side has several named rocks — Juniper Point, Grassy Island, and the Hole itself — each with its own eddy structure.

Noble's Point and Stony Beach on the outer Buzzards Bay side provide quieter access for swimmers and waders, away from the ferry and research vessel traffic. Water temperatures in Buzzards Bay are warmer than the outer Cape Cod beaches in summer due to the sheltered geometry and shallower depth.

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. For authoritative US tide data, consult NOAA CO-OPS at tidesandcurrents.noaa.gov.